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how do i get the GridView current row number

Posted on 2006-10-19
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Last Modified: 2008-01-09
I have a template column where two buttons are placed one is delete message and other is reply for a message, i have placed a invisible label that holds the message id, how do i get the value of the lblMessageId of the row when the button is clicked. i always get the first row's lblMessageId from the code i have used below

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<asp:TemplateField ItemStyle-VerticalAlign="Top"  HeaderText= "Details">
  <ItemTemplate>
    <%#Container.DataItem("MSG_Detail")%><br />                                      
    <asp:LinkButton ID="btnViewMsg" OnClick="ViewMsg_Clicked" Text = "Reply"  runat="server"/>  
    <asp:LinkButton ID="btnDeleteMsg" OnClick="DeleteMsg_Clicked" Text = "Delete"  runat="server"/>
    <asp:Label ID="lblMsgID" Text='<%#Container.DataItem("ID")%>' runat="server" Visible="false"></asp:Label>
  </ItemTemplate>                                                                                
  <HeaderStyle HorizontalAlign="Left" />                                        
</asp:TemplateField>    

--------------------

    Protected Sub DeleteMsg_Clicked(ByVal sender As Object, ByVal e As EventArgs)
        Try
            For Each _row As GridViewRow In gvInbox.Rows
                Dim _lnk As LinkButton = _row.Cells(0).Controls(1)
                If (Not (_lnk Is Nothing)) Then
                    Dim lbl As Label = DirectCast(_row.FindControl("lblMsgID"), Label)
                    Dim _FAFInboxDB As New FAFInboxDB
                    _FAFInboxDB.DeleteMessage(lbl.Text)
                End If
            Next
        Catch ex As Exception
        End Try
    End Sub
0
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Question by:sammy_chinnu
2 Comments
 
LVL 12

Expert Comment

by:deanvanrooyen
ID: 17771737


you might need to look at OnRowCommand="Gridview_OnRowCommand"
also there are some wierd issue with LinkButton on the post back,maybe use button, this binds off the status field in the db


eg

                 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Font-Size="X-Small"
                        Height="80px" OnRowCommand="Gridview_OnRowCommand" Width="786px" Caption="Not Delivered">
                        <Columns>                            

<asp:ButtonField DataTextField="status" HeaderText="Status" CommandName="status" Text="go to detail">
                                <ItemStyle HorizontalAlign="Left" Width="120px" />
                                <HeaderStyle BackColor="Silver" BorderColor="Silver" HorizontalAlign="Left" Width="120px" />
                            </asp:ButtonField>


    protected void Gridview_OnRowCommand(Object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "status")
        {
            // Convert the row index stored in the CommandArgument
            // property to an Integer.
            int index = Convert.ToInt32(e.CommandArgument);
            // Retrieve the row that contains the button clicked
            // by the user from the Rows collection.
            GridViewRow row = this.GridView1.Rows[index];
            int id  = Convert.ToInt32(row.Cells[0].Text);

        }
    }
0
 
LVL 27

Accepted Solution

by:
Sammy earned 750 total points
ID: 17771811
You can use CommandArgument and CommandName properties

<asp:LinkButton runat="server" ID="btnViewMsg" ToolTip="View Message" Text="Reply" CommandArgument='<%#Eval("Id") %>'</LinkButton>

Sub CustomersGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
      _FAFInboxDB.DeleteMessage(index)         'Delete the Message
'You can test with Response.Write(index) to see the ID
End Sub

You dont have to add any hidden controls or anything like that.

take a deeper look here http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowcommand.aspx

HTH
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