У меня есть сетка для биллинга, в которой пользователь должен выбрать и добавить строки в сетку.Теперь проблема в том, что когда я пытаюсь удалить одну строку с помощью кнопки удаления, она очищает и все остальные строки.
gif, чтобы продемонстрировать это:
моя разметка aspx:
<asp:GridView ID="Gridview1" runat="server" CssClass="table table-bordered table-hover table-responsive" ShowFooter="True" OnRowDeleting="Gridview1_RowDeleting" AutoGenerateColumns="False" OnRowDataBound="gvRowDataBound" OnRowCommand="Gridview1_RowCommand">
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="Sl. No." />
<asp:TemplateField HeaderText="Item Name" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:DropDownList ID="drpItemname" runat="server" Width="200px" CssClass="form-control select2" OnSelectedIndexChanged="GetItemDetails" AutoPostBack="true"></asp:DropDownList>
</ItemTemplate>
<HeaderStyle Wrap="False" />
<ItemStyle Wrap="False" />
</asp:TemplateField>
<asp:TemplateField HeaderText="HSN Code" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txthsn" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Available Quantity" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtQttyAvailable" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Quantity" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtQtty" runat="server" CssClass="form-control" OnTextChanged="CalculateTotal" AutoPostBack="true" Enabled="true"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Unit Price" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtUnitPrice" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Discount" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtdisc" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="S.GST" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtsgst" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="C.GST" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtcgst" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="I.GST" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtigst" runat="server" OnTextChanged="CalculateGST" AutoPostBack="true" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton runat="server" ID="linkDelete" CommandName="Delete" CommandArgument="<%# Container.DataItemIndex %>" CausesValidation="False" OnClick="linkDelete_Click">Remove</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Total Price" ConvertEmptyStringToNull="False" ItemStyle-Wrap="false" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:TextBox ID="txtTotalPrice" runat="server" CssClass="form-control" Enabled="False"></asp:TextBox>
</ItemTemplate>
<FooterStyle HorizontalAlign="Right" />
<FooterTemplate>
<asp:Button ID="ButtonAdd" runat="server" CssClass="btn btn-primary" Text="Add Another Item" OnClick="AddItem" CausesValidation="False" />
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
вот мой код C #позади.Я разместил каждое событие и метод отдельно.
Чтобы установить начальную строку
private void SetInitialRow()
{
DataTable dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
dt.Columns.Add(new DataColumn("Column2", typeof(string)));
dt.Columns.Add(new DataColumn("Column3", typeof(string)));
dt.Columns.Add(new DataColumn("Column4", typeof(string)));
dt.Columns.Add(new DataColumn("Column5", typeof(string)));
dt.Columns.Add(new DataColumn("Column6", typeof(string)));
dt.Columns.Add(new DataColumn("Column7", typeof(string)));
dt.Columns.Add(new DataColumn("Column8", typeof(string)));
dt.Columns.Add(new DataColumn("Column9", typeof(string)));
dt.Columns.Add(new DataColumn("Column10", typeof(string)));
dr = dt.NewRow();
dr["RowNumber"] = 1;
dr["Column1"] = string.Empty;
dr["Column2"] = string.Empty;
dr["Column3"] = string.Empty;
dr["Column4"] = string.Empty;
dr["Column5"] = string.Empty;
dr["Column6"] = string.Empty;
dr["Column7"] = string.Empty;
dr["Column8"] = string.Empty;
dr["Column9"] = string.Empty;
dr["Column10"] = string.Empty;
dt.Rows.Add(dr);
//dr = dt.NewRow();
//Store the DataTable in ViewState
ViewState["CurrentTable"] = dt;
Gridview1.DataSource = dt;
Gridview1.DataBind();
}
Чтобы получить сведения об элементе
protected void GetItemDetails(object sender, EventArgs e)
{
DropDownList ddl = sender as DropDownList;
foreach (GridViewRow row in Gridview1.Rows)
{
Control ctrl = row.FindControl("drpItemName") as DropDownList;
if (ctrl != null)
{
DropDownList ddl1 = (DropDownList)ctrl;
if (ddl.ClientID == ddl1.ClientID)
{
TextBox QttyAvailable = row.FindControl("txtQttyAvailable") as TextBox;
TextBox UnitPrice = row.FindControl("txtUnitPrice") as TextBox;
TextBox HsnCode = row.FindControl("txthsn") as TextBox;
TextBox Discount = row.FindControl("txtdisc") as TextBox;
TextBox SGST = row.FindControl("txtsgst") as TextBox;
TextBox CGST = row.FindControl("txtcgst") as TextBox;
TextBox IGST = row.FindControl("txtigst") as TextBox;
SqlConnection conn = new SqlConnection(constring);
conn.Open();
string str = "select * from Stock where itemname='" + ddl1.SelectedItem.ToString() + "'";
SqlCommand com = new SqlCommand(str, conn);
SqlDataReader reader = com.ExecuteReader();
while (reader.Read())
{
UnitPrice.Text = reader["unitprice"].ToString();
QttyAvailable.Text = reader["qtty"].ToString();
HsnCode.Text = reader["hsn"].ToString();
Discount.Text = reader["disc"].ToString();
SGST.Text = reader["sgst"].ToString();
CGST.Text = reader["cgst"].ToString();
IGST.Text = reader["igst"].ToString();
}
reader.Close();
conn.Close();
}
}
}
}
DropDownList SelectedIndex Запуск события из сетки с использованием привязки строк
protected void gvRowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DropDownList drpItemName = (e.Row.FindControl("drpItemName") as DropDownList);
foreach (GridViewRow row2 in Gridview1.Rows)
{
TextBox txt = row2.FindControl("txtTotalPrice") as TextBox;
txt.Text = "0";
}
drpItemName.DataSource = GetData("SELECT DISTINCT itemname FROM Stock where rem != '1'");
drpItemName.DataTextField = "itemname";
drpItemName.DataValueField = "itemname";
drpItemName.DataBind();
//Add Default Item in the DropDownList.
drpItemName.Items.Insert(0, new ListItem("Please select"));
/*Select the Country of Customer in DropDownList.
string country = (row.FindControl("lblCountry") as Label).Text;
drpItemName.Items.FindByValue(country).Selected = true;*/
}
if (e.Row.RowType == DataControlRowType.DataRow)
{
string item = e.Row.Cells[0].Text;
foreach (Button button in e.Row.Cells[2].Controls.OfType<Button>())
{
if (button.CommandName == "Delete")
{
button.Attributes["onclick"] = "if(!confirm('Do you want to delete " + item + "?')){ return false; };";
}
}
}
}
Добавлениеновая строка и установка данных предварительного просмотра в виде сетки
private void AddNewRowToGrid()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
//extract the TextBox values
DropDownList box1 = (DropDownList)Gridview1.Rows[rowIndex].Cells[1].FindControl("drpItemName");
TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("txthsn");
TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("txtQttyAvailable");
TextBox box4 = (TextBox)Gridview1.Rows[rowIndex].Cells[4].FindControl("txtQtty");
TextBox box5 = (TextBox)Gridview1.Rows[rowIndex].Cells[5].FindControl("txtUnitPrice");
TextBox box6 = (TextBox)Gridview1.Rows[rowIndex].Cells[6].FindControl("txtdisc");
TextBox box7 = (TextBox)Gridview1.Rows[rowIndex].Cells[7].FindControl("txtsgst");
TextBox box8 = (TextBox)Gridview1.Rows[rowIndex].Cells[8].FindControl("txtcgst");
TextBox box9 = (TextBox)Gridview1.Rows[rowIndex].Cells[9].FindControl("txtigst");
TextBox box10 = (TextBox)Gridview1.Rows[rowIndex].Cells[10].FindControl("txtTotalPrice");
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = i + 1;
dtCurrentTable.Rows[i - 1]["Column1"] = box1.Text;
dtCurrentTable.Rows[i - 1]["Column2"] = box2.Text;
dtCurrentTable.Rows[i - 1]["Column3"] = box3.Text;
dtCurrentTable.Rows[i - 1]["Column4"] = box4.Text;
dtCurrentTable.Rows[i - 1]["Column5"] = box5.Text;
dtCurrentTable.Rows[i - 1]["Column6"] = box6.Text;
dtCurrentTable.Rows[i - 1]["Column7"] = box7.Text;
dtCurrentTable.Rows[i - 1]["Column8"] = box8.Text;
dtCurrentTable.Rows[i - 1]["Column9"] = box9.Text;
dtCurrentTable.Rows[i - 1]["Column10"] = box10.Text;
rowIndex++;
}
dtCurrentTable.Rows.Add(drCurrentRow);
ViewState["CurrentTable"] = dtCurrentTable;
Gridview1.DataSource = dtCurrentTable;
Gridview1.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
//Set Previous Data on Postbacks
SetPreviousData();
}
private void SetPreviousData()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
DropDownList box1 = (DropDownList)Gridview1.Rows[rowIndex].Cells[1].FindControl("drpItemName");
TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("txthsn");
TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("txtQttyAvailable");
TextBox box4 = (TextBox)Gridview1.Rows[rowIndex].Cells[4].FindControl("txtQtty");
TextBox box5 = (TextBox)Gridview1.Rows[rowIndex].Cells[5].FindControl("txtUnitPrice");
TextBox box6 = (TextBox)Gridview1.Rows[rowIndex].Cells[6].FindControl("txtdisc");
TextBox box7 = (TextBox)Gridview1.Rows[rowIndex].Cells[7].FindControl("txtsgst");
TextBox box8 = (TextBox)Gridview1.Rows[rowIndex].Cells[8].FindControl("txtcgst");
TextBox box9 = (TextBox)Gridview1.Rows[rowIndex].Cells[9].FindControl("txtigst");
TextBox box10 = (TextBox)Gridview1.Rows[rowIndex].Cells[10].FindControl("txtTotalPrice");
box1.Text = dt.Rows[i]["Column1"].ToString();
box2.Text = dt.Rows[i]["Column2"].ToString();
box3.Text = dt.Rows[i]["Column3"].ToString();
box4.Text = dt.Rows[i]["Column4"].ToString();
box5.Text = dt.Rows[i]["Column5"].ToString();
box6.Text = dt.Rows[i]["Column6"].ToString();
box7.Text = dt.Rows[i]["Column7"].ToString();
box8.Text = dt.Rows[i]["Column8"].ToString();
box9.Text = dt.Rows[i]["Column9"].ToString();
box10.Text = dt.Rows[i]["Column10"].ToString();
rowIndex++;
if (!string.IsNullOrEmpty(box10.Text) && !string.IsNullOrEmpty(box10.Text))
{
box10.Text = dt.Rows[i]["Column10"].ToString();
}
else
{
box10.Text = "0";
}
}
}
}
}
Удаление строки из вида сетки
protected void linkDelete_Click(object sender, EventArgs e)
{
try
{
LinkButton lb = (LinkButton)sender;
GridViewRow gvRow = (GridViewRow)lb.NamingContainer;
int rowID = gvRow.RowIndex + 1;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 2)
{
if (gvRow.RowIndex < dt.Rows.Count - 1)
{
//Remove the Selected Row data
dt.Rows.Remove(dt.Rows[rowID]);
}
}
//Store the current data in ViewState for future reference
ViewState["CurrentTable"] = dt;
//Re bind the GridView for the updated data
Gridview1.DataSource = dt;
Gridview1.DataBind();
}
}
catch (Exception ex)
{
throw ex;
}
}