Кто-нибудь знает об управлении электронной почтой ASP.Net / пользовательском контроле?

Question

Я внедряю систему обмена сообщениями в моей программе. Он функционирует так же, как электронная почта, за исключением того, что он целиком содержится в системе.

Мне было интересно, видел ли кто-нибудь шаблон управления электронной почтой, который я мог бы изменить. Он будет иметь такие элементы, как входящие, просмотр сообщений и отправка сообщений.

Я бы просто переписал отправляющие и получающие почту детали, чтобы подключить их к моим столам.

Спасибо!

Edit:

Хорошо, я не осознавал, что написал так много. Убедитесь, что вы зачислили Biff_MaGriff, если вы используете это. : D Технология .NET 3.5 с SubSonic 3.0

Остальное в моем ответе.

В конце должно выглядеть так. (Минус все мои вырезы)

web.config

<pages>
    <controls>
        ...
        <add tagPrefix="cc" tagName="MessageFolder" src="~/UserControls/Messages/MessageFolder/MessageFolder.ascx"/>
        <add tagPrefix="cc" tagName="MessageView" src="~/UserControls/Messages/MessageView/MessageView.ascx"/>
        <add tagPrefix="cc" tagName="MessageCompose" src="~/UserControls/Messages/MessageCompose/MessageCompose.ascx"/>
        <add tagPrefix="cc" tagName="MessageBox" src="~/UserControls/Messages/MessageBox/MessageBox.ascx"/>
        ...
    </controls>
<pages>

App_Code / IMessageFolder.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Summary description for IMessageFolder
/// </summary>
public interface IMessageFolder
{
    int? MessageID { get; }
}

App_Code / CustomDataViews.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.Linq;
using System.Linq;
using System.Web;
/// <summary>
/// Summary description for CustomDataViews
/// </summary>
public class CustomDataViews
{
    //Subsonic db
    static VAC.Data.VACDB db = new VAC.Data.VACDB();

    public class MessageQuery
    {
        public class Message
        {
            public int MessageID { get; set; }
            public string FromUser { get; set; }
            public string ToUser { get; set; }
            public DateTime SentDate { get; set; }
            public string Subject { get; set; }
            public string Body { get; set; }
            public bool IsDeletedSender { get; set; }
            public bool IsDeletedRecipient { get; set; }
            public bool IsRead { get; set; }
        }

        public enum MailType { ReceivedMail, SentMail };

        public Message[] GetMessages(MailType mt, bool showDeleted)
        {
            List<Message> myMessages = new List<Message>();

            foreach (var v in (from m in db.Messages
                               where (mt == MailType.ReceivedMail ? m.ToUserID : m.FromUserID) == Common.CurrentUserID
                               && (showDeleted || !(mt == MailType.ReceivedMail ? m.IsDeletedRecipient : m.IsDeletedSender))
                               orderby m.SentDate descending
                               select m))
            {
                Message mess = new Message();
                mess.MessageID = v.MessageID;
                mess.FromUser = (from u in db.Users where u.UserID == v.FromUserID select u.UserName).First();
                mess.ToUser = (from u in db.Users where u.UserID == v.ToUserID select u.UserName).First();
                mess.SentDate = v.SentDate;
                mess.Subject = v.Subject;
                mess.Body = v.Body;
                mess.IsDeletedSender = v.IsDeletedSender;
                mess.IsDeletedRecipient = v.IsDeletedRecipient;
                mess.IsRead = v.IsRead;
                myMessages.Add(mess);
            }

            return myMessages.ToArray();
        }

        public Message GetMessage(int MessageID)
        {
            var myMessage = (from m in db.Messages where m.MessageID == MessageID select m);
            if (myMessage.Count() == 1)
            {
                var v = myMessage.First();
                Message mess = new Message();
                mess.MessageID = v.MessageID;
                mess.FromUser = (from u in db.Users where u.UserID == v.FromUserID select u.UserName).First();
                mess.ToUser = (from u in db.Users where u.UserID == v.ToUserID select u.UserName).First();
                mess.SentDate = v.SentDate;
                mess.Subject = v.Subject;
                mess.Body = v.Body;
                return mess;
            }
            else
                return null;
        }
    }

}

App_Code / Common.cs

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.SessionState;
using System.Web.Configuration;
using System.Data;
using System.Text;
using System.Collections;
using System.Globalization;
using System.Linq;

/// <summary>
/// Summary description for Common
/// </summary>
public class Common
{
    /// <summary>
    /// Retrieves the index of the column from the gridview. Returns -1 if not found.
    /// </summary>
    /// <param name="gv"></param>
    /// <param name="columnName"></param>
    /// <returns></returns>
    static public int GetColumnIndex(GridView gv, string columnName)
    {
        int returnMe = -1;
        for (int i = 0; i < gv.Columns.Count; i++)
        {
            if (gv.Columns[i].HeaderText == columnName)
            {
                returnMe = i;
                break;
            }
        }
        return returnMe;
    }

    //Colours for gridviews
    static public string BGColourRed = "#FF8888";
    static public string BGColourRedAlternate = "#FF0000";

    static public string BGColourBlue = "#AAAAFF";
    static public string BGColourBlueAlternate = "#4444FF";

    static public string BGColourGreen = "#2bf053";
    static public string BGColourGreenAlternate = "#27c319";

    static public string BGColourOrange = "#FFA365";
    static public string BGColourOrangeAlternate = "#FF6600";

    static public string NormalBGColour(object sender)
    {
        return "#" +
            ((GridView)sender).RowStyle.BackColor.R.ToString("X") +
            ((GridView)sender).RowStyle.BackColor.G.ToString("X") +
            ((GridView)sender).RowStyle.BackColor.B.ToString("X");
    }

    static public string AlternateBGColour(object sender)
    {
        return "#" +
            ((GridView)sender).AlternatingRowStyle.BackColor.R.ToString("X") +
            ((GridView)sender).AlternatingRowStyle.BackColor.G.ToString("X") +
            ((GridView)sender).AlternatingRowStyle.BackColor.B.ToString("X");
    }

    static public string SelectedBGColour(object sender)
    {
        string selectedBGColour = "#165EA9";

        if (!((GridView)sender).SelectedRowStyle.BackColor.IsEmpty)
        {
            selectedBGColour = "#" +
               ((GridView)sender).SelectedRowStyle.BackColor.R.ToString("X") +
               ((GridView)sender).SelectedRowStyle.BackColor.G.ToString("X") +
               ((GridView)sender).SelectedRowStyle.BackColor.B.ToString("X");
        }
        return selectedBGColour;
    }

    /// <summary>
    /// Gridview RowDataBound extension.
    /// Allows row selection by clicking on a row and highlights the row in yellow on the mouse hover.
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    static public void GridView_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.DataItemIndex == -1)
            return;

        //e.Row.Attributes.Add("onclick", ((GridView)sender).Page.ClientScript.GetPostBackEventReference((GridView)sender, "Select$" + e.Row.RowIndex.ToString(), false));

        string selectedBGColour = SelectedBGColour(sender);
        string normalBGColour = NormalBGColour(sender);
        string alternateBGColour = AlternateBGColour(sender);

        ApplyStylingToRow(e.Row, selectedBGColour, normalBGColour, alternateBGColour);
    }

    static public void ApplyStylingToRow(GridViewRow row, string selectedBGColour, string normalBGColour, string alternateBGColour)
    {
        AppendAttribute(row, "onMouseOver",
               "this.style.cursor='pointer'; this.style.background='yellow';");
        AppendAttribute(row, "onMouseOut",
            "this.style.background='" + ((row.RowState & DataControlRowState.Selected) == DataControlRowState.Selected ? selectedBGColour :
            (row.RowState & DataControlRowState.Alternate) == DataControlRowState.Alternate ? alternateBGColour : normalBGColour) + "';");
    }


    static public void GridViewAddRowClick(GridView gv, GridViewRow row, bool isRender)
    {
        AppendAttribute(row, "onclick", gv.Page.ClientScript.GetPostBackEventReference(gv, "Select$" + row.RowIndex.ToString(), isRender) + ";");
        /*
        for (int i = 0; i < gv.Columns.Count; i++)
            if (!string.IsNullOrEmpty(gv.Columns[i].HeaderText) && row.Cells.Count > 1)
                AppendAttribute(row.Cells[i], "onclick", gv.Page.ClientScript.GetPostBackEventReference(gv, "Select$" + row.RowIndex.ToString(), isRender) + ";");
         * */
    }

    static public void GridViewRowClick_Render(GridView gv)
    {
        foreach (GridViewRow row in gv.Rows)
            if (row.RowType == DataControlRowType.DataRow)
                GridViewAddRowClick(gv, row, true);
        gv.Page.ClientScript.RegisterForEventValidation(gv.UniqueID);
    }

        /// <summary>
    /// Hides a column on a gridview.
    /// </summary>
    /// <param name="gv"></param>
    /// <param name="columnIndex"></param>
    static public void HideColumn(GridView gv, int columnIndex)
    {
        if (gv.HeaderRow != null)
            gv.HeaderRow.Cells[columnIndex].Style.Add("display", "none");
        foreach (GridViewRow row in gv.Rows)
        {
            if (row.RowType == DataControlRowType.DataRow)
                row.Cells[columnIndex].Style.Add("display", "none");
        }
    }

    /// <summary>
    /// Registers javascript to be run.
    /// </summary>
    /// <param name="con"></param>
    /// <param name="script"></param>
    static public void RegisterStartupScript(object con, string script)
    {
        RegisterStartupScript((Control)con, script);
    }

    /// <summary>
    /// Capitalizes the beginning of strings
    /// </summary>
    /// <param name="strText"></param>
    public static string InitCap(string strText)
    {
        return new CultureInfo("en").TextInfo.ToTitleCase(strText.ToLower());
    }

    /// <summary>
    /// Registers javascript to be run.
    /// </summary>
    /// <param name="con"></param>
    /// <param name="script"></param>
    static public void RegisterStartupScript(Control con, string script)
    {
        ScriptManager sm = ScriptManager.GetCurrent(con.Page);
        if (sm != null)
            ScriptManager.RegisterStartupScript(con, con.GetType(), Guid.NewGuid().ToString(), script, true);
        else
            con.Page.ClientScript.RegisterStartupScript(typeof(Page), Guid.NewGuid().ToString(), script, true);
    }

    /// <summary>
    /// Registers a javascript file to be included in the page.
    /// </summary>
    /// <param name="con"></param>
    /// <param name="url"></param>
    static public void RegisterClientScriptInclude(Control con, string url)
    {
        ScriptManager sm = ScriptManager.GetCurrent(con.Page);
        if (sm != null)
            ScriptManager.RegisterClientScriptInclude(con, con.GetType(), Guid.NewGuid().ToString(), System.Web.Hosting.HostingEnvironment.ApplicationVirtualPath + url);
        else
            con.Page.ClientScript.RegisterClientScriptInclude(typeof(Page), Guid.NewGuid().ToString(), System.Web.Hosting.HostingEnvironment.ApplicationVirtualPath + url);
    }

    public static int CurrentUserID { get { return (from u in new VAC.Data.VACDB().Users where u.UserName == HttpContext.Current.User.Identity.Name select u.UserID).First(); } }

    public class MessageComposeEventArgs : EventArgs
    {
        public int? SendToUserID { get; set; }
        public string Subject { get; set; }

        public MessageComposeEventArgs()
        {
        }

        public MessageComposeEventArgs(int SendToUserID)
        {
            this.SendToUserID = SendToUserID;
        }

        public MessageComposeEventArgs(int SendToUserID, string Subject)
        {
            this.SendToUserID = SendToUserID;
            this.Subject = Subject;
        }
    }
}

App_Code / ExtendedCommandField.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;


/// <summary>
/// An extended <see cref="CommandField"/> that allows deletions
/// to be confirmed by the user.
/// </summary>
public class ExtendedCommandField : CommandField
{
    /// <summary>
    /// Initialize the cell.
    /// </summary>
    public override void InitializeCell(DataControlFieldCell cell,
        DataControlCellType cellType, DataControlRowState rowState, int rowIndex)
    {
        base.InitializeCell(cell, cellType, rowState, rowIndex);
        if (!string.IsNullOrEmpty(this.DeleteConfirmationText) && this.ShowDeleteButton)
        {
            foreach (Control control in cell.Controls)
            {
                IButtonControl button = control as IButtonControl;
                if (button != null && button.CommandName == "Delete")
                    // Add delete confirmation
                    ((WebControl)control).Attributes.Add("onclick", string.Format
                    ("if (!confirm('{0}')) return false;", this.DeleteConfirmationText));
            }
        }
    }

    #region DeleteConfirmationText
    /// <summary>
    /// Delete confirmation text.
    /// </summary>
    [Category("Behavior")]
    [Description("The text shown to the user to confirm the deletion.")]
    public string DeleteConfirmationText
    {
        get { return this.ViewState["DeleteConfirmationText"] as string; }
        set { this.ViewState["DeleteConfirmationText"] = value; }
    }
    #endregion
}

~ / элементы управления UserControl / Сообщения / MessageFolder / MessageFolder.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MessageFolder.ascx.cs"
    Inherits="UserControls_Messages_MessageFolder_MessageFolder" %>
<asp:UpdatePanel ID="up1" runat="server">
    <ContentTemplate>
        <asp:HiddenField ID="hfMessageID" runat="server" />
        <asp:Button ID="butRefresh" runat="server" Text="Check for new Messages" /><asp:Button
            ID="butCompose" runat="server" Text="Compose New Message" OnClick="butCompose_Click" /><asp:CheckBox
                AutoPostBack="true" ID="cbShowDeleted" runat="server" Text="Show Deleted Messages"
                OnCheckedChanged="cbShowDeleted_CheckChanged" />
        <asp:GridView ID="gvMessages" runat="server" DataKeyNames="MessageID" AutoGenerateColumns="false"
            OnRowDataBound="gvMessages_RowDataBound" OnSelectedIndexChanged="gvMessages_SelectedIndexChanged"
            OnRowDeleting="gvMessages_RowDeleting" Width="100%" Style="float: left;">
            <Columns>
                <asp:BoundField DataField="MessageID" InsertVisible="false" />
                <cc:ExtendedCommandField DeleteConfirmationText="Are you certain you wish to delete this record?"
                    DeleteText="Delete" ShowDeleteButton="true" />
                <asp:BoundField DataField="FromUser" HeaderText="From" />
                <asp:BoundField DataField="ToUser" HeaderText="To" />
                <asp:TemplateField>
                    <HeaderTemplate>
                        Sent Date</HeaderTemplate>
                    <ItemTemplate>
                        <asp:Label ID="lbl1" runat="server" Text='<%# Bind("SentDate") %>' Style="white-space: nowrap;" /></ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Subject" HeaderText="Subject" ItemStyle-Width="100%" />
            </Columns>
        </asp:GridView>
    </ContentTemplate>
</asp:UpdatePanel>

Answer 1

В итоге я создал свой собственный пользовательский элемент управления. Если кому-то интересно сообщение и я выложу подробности.

Edit:

Хорошо, я не осознавал, что написал так много. Убедитесь, что вы зачислили Biff_MaGriff, если вы используете это. : D Технология .NET 3.5 с SubSonic 3.0

В конце должно выглядеть так.

Хм, я не могу опубликовать более 30 000 символов ...

Продолжение сверху.

~ / элементы управления UserControl / Сообщения / MessageFolder / MessageFolder.ascx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class UserControls_Messages_MessageFolder_MessageFolder : System.Web.UI.UserControl, IMessageFolder
{
    private static int IDCOLUMNINDEX = 0;
    private static int DELETECOLUMNINDEX = 1;
    private static int FROMCOLUMNINDEX = 2;
    private static int TOCOLUMNINDEX = 3;

    public event SelectedIndexChangedEventHandler SelectedIndexChanged;
    public delegate void SelectedIndexChangedEventHandler(object sender, EventArgs e);

    public event ComposeMessageEventHandler ComposeMessage;
    public delegate void ComposeMessageEventHandler(object sender, Common.MessageComposeEventArgs e);

    VAC.Data.VACDB db = new VAC.Data.VACDB();

    public int? MessageID
    {
        get
        {
            int id;
            if (int.TryParse(hfMessageID.Value, out id))
                return id;
            else
                return null;
        }
    }

    public CustomDataViews.MessageQuery.MailType MailType { get; set; }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (MailType == CustomDataViews.MessageQuery.MailType.SentMail)
        {
            butCompose.Visible = false;
        }
        Refresh();
    }

    public void Refresh()
    {
        gvMessages.DataSource = new CustomDataViews.MessageQuery().GetMessages(MailType, cbShowDeleted.Checked);
        gvMessages.DataBind();
        Common.HideColumn(gvMessages, IDCOLUMNINDEX);
        if (MailType == CustomDataViews.MessageQuery.MailType.ReceivedMail)
            Common.HideColumn(gvMessages, TOCOLUMNINDEX);
        else
            Common.HideColumn(gvMessages, FROMCOLUMNINDEX);
    }

    protected void gvMessages_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        Common.GridView_RowDataBound(sender, e);
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CustomDataViews.MessageQuery.Message dataItem = ((CustomDataViews.MessageQuery.Message)e.Row.DataItem);

            if (dataItem.IsDeletedSender && MailType == CustomDataViews.MessageQuery.MailType.SentMail
                || dataItem.IsDeletedRecipient && MailType == CustomDataViews.MessageQuery.MailType.ReceivedMail)
            {
                foreach (TableCell tc in e.Row.Cells)
                    tc.Enabled = false;
                e.Row.Cells[DELETECOLUMNINDEX].Enabled = true;
                ((LinkButton)e.Row.Cells[DELETECOLUMNINDEX].Controls[0]).Text = "Undelete";
                ((LinkButton)e.Row.Cells[DELETECOLUMNINDEX].Controls[0]).Attributes.Clear();
            }
            if (!dataItem.IsRead && MailType == CustomDataViews.MessageQuery.MailType.ReceivedMail)
            {
                //colouring for initial load
                if ((e.Row.RowState & DataControlRowState.Alternate) == DataControlRowState.Alternate)
                    e.Row.BackColor = System.Drawing.ColorTranslator.FromHtml(Common.BGColourGreenAlternate);
                else
                    e.Row.BackColor = System.Drawing.ColorTranslator.FromHtml(Common.BGColourGreen);
                //colouring for onmouse out
                Common.ApplyStylingToRow(e.Row, Common.SelectedBGColour(sender), Common.BGColourGreen, Common.BGColourGreenAlternate);
            }
        }

        if (ScriptManager.GetCurrent(this.Page).IsInAsyncPostBack && e.Row.RowType == DataControlRowType.DataRow)
            Common.GridViewAddRowClick(gvMessages, e.Row, false);
    }

    protected void gvMessages_SelectedIndexChanged(object sender, EventArgs e)
    {
        hfMessageID.Value = gvMessages.SelectedValue != null ? gvMessages.SelectedValue.ToString() : "";
        if (MailType == CustomDataViews.MessageQuery.MailType.ReceivedMail)
        {
            var mess = (from m in db.Messages where m.MessageID == MessageID.Value select m);
            if (mess.Count() == 1)
            {
                var message = mess.First();
                message.IsRead = true;
                message.Save();
            }
        }

        if (this.SelectedIndexChanged != null)
            SelectedIndexChanged(this, new EventArgs());
        this.Refresh();
    }

    protected void gvMessages_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        int id;
        if (int.TryParse(((GridView)sender).Rows[e.RowIndex].Cells[IDCOLUMNINDEX].Text, out id))
        {
            var message = (from m in db.Messages where m.MessageID == id select m).First();
            if (!message.IsDeletedRecipient && MailType == CustomDataViews.MessageQuery.MailType.ReceivedMail)
                message.IsDeletedRecipient = true;
            else
                message.IsDeletedRecipient = false;
            message.Save();

            if (!message.IsDeletedSender && MailType == CustomDataViews.MessageQuery.MailType.SentMail)
                message.IsDeletedSender = true;
            else
                message.IsDeletedSender = false;
            message.Save();

            gvMessages.SelectedIndex = -1;
            gvMessages_SelectedIndexChanged(gvMessages, new EventArgs());
        }
        Refresh();
    }

    protected override void Render(HtmlTextWriter writer)
    {
        Common.GridViewRowClick_Render(gvMessages);
        base.Render(writer);
    }

    protected void butCompose_Click(object sender, EventArgs e)
    {
        if (this.ComposeMessage != null)
        {
            this.ComposeMessage(this, new Common.MessageComposeEventArgs());
        }
    }

    protected void cbShowDeleted_CheckChanged(object sender, EventArgs e)
    {
        Refresh();
    }
}

MessageCompose.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MessageCompose.ascx.cs"
    Inherits="UserControls_Messages_MessageCompose_MessageCompose" %>
<div>
    <table style="width: 100%;">
        <tr>
            <td>
                <asp:Label ID="Label1" runat="server" Text="To :" />
            </td>
            <td style="width:100%">
                <asp:DropDownList ID="ddlToUser" runat="server" AppendDataBoundItems="true" DataSourceID="odsUsers"
                    DataTextField="UserName" DataValueField="UserID">
                    <asp:ListItem Text="--Select--" Value="" />
                </asp:DropDownList>
                <asp:ObjectDataSource ID="odsUsers" runat="server" SelectMethod="GetUsers" TypeName="CustomDataViews+UserListQuery">
                </asp:ObjectDataSource>
                <asp:RequiredFieldValidator ID="rfv1" runat="server" Text="*" ControlToValidate="ddlToUser"
                    ValidationGroup="Compose" />
            </td>
        </tr>
        <tr>
            <td>
                <asp:Label ID="Label2" runat="server" Text="Subject :" />
            </td>
            <td style="padding: 1px 5px 1px 1px">
                <asp:TextBox ID="tbSubject" runat="server" Width="100%" />
            </td>
        </tr>
        <tr>
            <td colspan="2" style="padding: 1px 5px 1px 1px">
                <asp:TextBox ID="tbBody" runat="server" TextMode="MultiLine" Style="width: 100%"
                    Rows="20" />
            </td>
        </tr>
        <tr>
            <td colspan="2">
                <table width="100%">
                    <tr>
                        <td align="center">
                            <asp:Label ID="lblMessageSentText" runat="server" Text="Your message was sent." CssClass="info" Visible="false" />
                        </td>
                        <td align="right">
                            <asp:Button ID="butSend" runat="server" Text="Send" OnClick="butSend_Click" ValidationGroup="Compose"
                                 />
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>
</div>

MessageCompose.ascx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using VAC.Data;

public partial class UserControls_Messages_MessageCompose_MessageCompose : System.Web.UI.UserControl
{
    public event MessageSentEventHandler MessageSent;
    public delegate void MessageSentEventHandler(object sender, EventArgs e);

    public int? SendToUserID
    {
        set
        {
            if (ddlToUser.Items.FindByValue(value.HasValue ? value.Value.ToString() : "") != null)
                ddlToUser.SelectedValue = value.HasValue ? value.Value.ToString() : "";
            else
                Common.RegisterStartupScript(this, "alert('Error :  You are unauthorized to respond to this message.');");
        }
    }

    public string SendToSubject
    {
        set
        {
            tbSubject.Text = "RE: " + value;
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        lblMessageSentText.Visible = false;
    }

    private static string SENTMESSAGETEXT = "Your message was sent at {0} to {1}.";

    protected void butSend_Click(object sender, EventArgs e)
    {
        Message m = new Message();
        m.Body = tbBody.Text;
        m.FromUserID = Common.CurrentUserID;
        m.IsRead = false;
        m.SentDate = DateTime.Now;
        m.Subject = tbSubject.Text;
        int tid;
        if (int.TryParse(ddlToUser.SelectedValue, out tid))
            m.ToUserID = tid;
        m.Save();
        lblMessageSentText.Text = string.Format(SENTMESSAGETEXT, DateTime.Now.ToString(), ddlToUser.SelectedItem.Text);
        lblMessageSentText.Visible = true;

        ddlToUser.SelectedValue = null;
        tbSubject.Text = "";
        tbBody.Text = "";

        if (this.MessageSent != null)
            MessageSent(this, new EventArgs());
    }
}

MessageView.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MessageView.ascx.cs" Inherits="UserControls_Messages_MessageView_MessageView" %>
<asp:HiddenField ID="hfMessageID" runat="server" />
<div style="border-style: solid;">
    <div style="font-size: x-large; padding: 10px 10px 10px 10px;">
        <asp:Label ID="lblSubject" runat="server" Text='<%# Bind("Subject") %>' /></div>
    <div style="background-color: lightblue;">
        <table>
            <tr>
                <td>
                    <asp:Label ID="Label1" runat="server" Text="From :" />
                </td>
                <td>
                    <asp:Label ID="lblFromUser" runat="server" Text='<%# Bind("FromUser") %>' />
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="Label2" runat="server" Text="To :" />
                </td>
                <td>
                    <asp:Label ID="lblToUser" runat="server" Text='<%# Bind("ToUser") %>' />
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="Label3" runat="server" Text="Sent :" />
                </td>
                <td>
                    <asp:Label ID="lblSentDate" runat="server" Text='<%# Bind("SentDate") %>' />
                </td>
            </tr>
        </table>
    </div>
    <div style="padding: 10px 10px 10px 10px">
        <asp:Label ID="lblBody" runat="server" Text='<%# Bind("Body") %>' />
    </div>
    <div style="padding: 10px 10px 10px 10px">
        <asp:LinkButton ID="lbReply" runat="server" Text="Reply" 
            onclick="lbReply_Click" /></div>
</div>

MessageView.ascx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class UserControls_Messages_MessageView_MessageView : System.Web.UI.UserControl
{
    public event ComposeMessageEventHandler ComposeMessage;
    public delegate void ComposeMessageEventHandler(object sender, Common.MessageComposeEventArgs e);

    public int? MessageID
    {
        get
        {
            int mid;
            return int.TryParse(hfMessageID.Value, out mid) ? mid : new int?();
        }
        set
        {
            hfMessageID.Value = (value.HasValue) ? value.ToString() : "";
            BindMessageView();
        }
    }

    private void BindMessageView()
    {
        if (MessageID.HasValue)
        {
            CustomDataViews.MessageQuery.Message message = new CustomDataViews.MessageQuery().GetMessage(MessageID.Value);

            this.Visible = true;
            lblBody.Text = message.Body;
            lblFromUser.Text = message.FromUser;
            lblSentDate.Text = message.SentDate.ToString();
            lblSubject.Text = message.Subject;
            lblToUser.Text = message.ToUser;
        }
        else
        {
            this.Visible = false;
            lblBody.Text = "";
            lblFromUser.Text = "";
            lblSentDate.Text = "";
            lblSubject.Text = "";
            lblToUser.Text = "";
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void lbReply_Click(object sender, EventArgs e)
    {
        var mess = (from m in new VAC.Data.VACDB().Messages where m.MessageID == MessageID select m);
        if (mess.Count() == 1)
        {
            if (this.ComposeMessage != null)
                this.ComposeMessage(this, new Common.MessageComposeEventArgs(mess.First().FromUserID, mess.First().Subject));
        }
    }
}

MessageBox.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MessageBox.ascx.cs" Inherits="UserControls_Messages_MessageBox_MessageBox" %>
<asp:UpdatePanel ID="up1" runat="server">
    <ContentTemplate>
        <h1>
            Message Inbox</h1>
        <cc:MessageFolder ID="mf1" runat="server" MailType="ReceivedMail" OnSelectedIndexChanged="SelectedMessageChanged"
            OnComposeMessage="ComposeMessage" />
        <h2>
            Sent Messages</h2>
        <cc:MessageFolder ID="mf2" runat="server" MailType="SentMail" OnSelectedIndexChanged="SelectedMessageChanged" />
        <br />
        <cc:MessageView ID="mv1" runat="server" OnComposeMessage="ComposeMessage" />
        <br />
        <cc:MessageCompose ID="mc1" runat="server" OnMessageSent="mc1_MessageSent" />
    </ContentTemplate>
</asp:UpdatePanel>

MessageBox.ascx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class UserControls_Messages_MessageBox_MessageBox : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            mv1.MessageID = mf1.MessageID;
            mc1.Visible = false;
        }
    }

    protected void SelectedMessageChanged(object sender, EventArgs e)
    {
        mv1.MessageID = ((IMessageFolder)sender).MessageID;
        mc1.Visible = false;
    }

    protected void ComposeMessage(object sender, Common.MessageComposeEventArgs e)
    {
        mc1.Visible = true;
        mc1.DataBind();
        if (e.SendToUserID.HasValue)
            mc1.SendToUserID = e.SendToUserID;
        if (!string.IsNullOrEmpty(e.Subject))
            mc1.SendToSubject = e.Subject;
    }

    protected void mc1_MessageSent(object sender, EventArgs e)
    {
        mf2.Refresh();
    }
}

Messages.aspx

<%@ Page Title="" Language="C#" MasterPageFile="~/Templates/Patient.master" AutoEventWireup="true"
    CodeFile="Messages.aspx.cs" Inherits="UI_Patient_Messages" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <cc:MessageBox ID="mi1" runat="server" />
</asp:Content>

Messages.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class UI_Patient_Messages : BasePage
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
}

Answer 2

Стив Даннер:

Telerik имеет хороший элемент управления PanelBar, который выглядит так же, как Outlook. Я полагаю, что образцы, которые поставляются с ним, идентичны демонстрационным приложениям, подобным Outlook, на их сайте, так что, вероятно, это будет очень быстрый и простой способ начать работу.

К вашему сведению, панель управления - это просто пользовательский интерфейс, она не обеспечивает функцию обмена сообщениями. Конечно, вы можете использовать его, чтобы ваша система обмена сообщениями выглядела как outlook, но вам все равно придется делать кодирование самостоятельно.

Answer 3

Если вы хотите раскошелиться, Telerik имеет приятный PanelBar элемент управления, который выглядит так же, как Outlook.Я полагаю, что образцы, которые поставляются с ним, идентичны демонстрационным приложениям, подобным Outlook, на их сайте, так что, вероятно, это будет очень быстрый и простой способ начать работу.