Я создал один пользовательский элемент управления для multiple file upload,
Мне нужно создать его пользовательский элемент управления, чтобы я мог иметь DLL этого элемента управления.
Как я могу это сделать?
usercontrol.ascx
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script src="Scripts/jquery.MultiFile.pack.js" type="text/javascript"></script>
<div><%-- accept attribute can be used like accept="png|jpg"--%>
Multiple File Upload<br />
<asp:FileUpload ID="FileUpload10" runat="server" class="multi" accept="" />
<asp:Button ID="Button3" runat="server" Text="Submit" OnClick="jQueryUploadFiles" />
<br />
<asp:Label ID="lblMessage" runat="server" EnableViewState="false" ForeColor="Green" />
<br />
<asp:Label ID="lblError" runat="server" EnableViewState="false" ForeColor="Red" />
</div>
usercontrol.ascx.cs
private void FileUploadUsingJQuerySelectionMethod()
{
// check if file has been selected
HttpFileCollection files = Request.Files;
for (int i = 0; i < files.Count; i++)
{
HttpPostedFile file = files[i];
if (file.ContentLength > 0)
{
string path = ConfigurationManager.AppSettings["FilePath"];
string fileName = Path.GetFileName(file.FileName);
// now save the file to the disk
file.SaveAs(path + fileName);
lblMessage.Text += "File : <b>" + fileName + "</b> uploaded successfully !<br />";
}
}
}
Я пытался так:
public class MultipleFileUpload : WebControl
{
#region declare controls here
Label lblMessage;
Label lblError;
FileUpload FileUpload10;
Button btnUpload;
#endregion
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public string FilePath
{// prop to get filepath
get
{
String s = (String)ViewState["FilePath"];
return ((s == null) ? "[" + this.ID + "]" : s);
}
set
{
ViewState["FilePath"] = value;
}
}
protected override void RenderContents(HtmlTextWriter output)
{
output.Write(FilePath);
}
// create the layout (html) of your control here
// all the HTML code including <div>
// Add all controls to the <div>, below code is very crude.<br/>
// Also you need to register the script tags and add the script to it<br/>
protected override void CreateChildControls()
{
base.CreateChildControls();
Table table = new Table();
this.Controls.Add(table);
lblMessage = new Label();
lblMessage.ID = "lblMessage";
lblError = new Label();
lblError.ID = "lblError";
FileUpload10 = new FileUpload();
FileUpload10.ID = "FileUpload10";
btnUpload = new Button();
btnUpload.ID = "btnUpload";
btnUpload.Text = "Submit <br/> ";
// table.Controls.Add(lblMessage);
}
// invoke this method were ever required
private void FileUploadUsingJQuerySelectionMethod()
{
// check if file has been selected
HttpFileCollection files = HttpContext.Current.Request.Files;
for (int i = 0; i < files.Count; i++)
{
HttpPostedFile file = files[i];
if (file.ContentLength > 0)
{
string path = FilePath;
string fileName = Path.GetFileName(file.FileName);
// now save the file to the disk
file.SaveAs(path + fileName);
lblMessage.Text += "File : <b>" + fileName + "</b> uploaded successfully !<br />";
}
}
}