Delete Row From GridView using cancel Image button

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hello friend i have a requirement in which i want to delete a row from my gridview on image button delete. i write the code like this

ASP.NET

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="false" Width="200" GridLines="None" OnRowCancelingEdit="GridView2_RowCancelingEdit" OnRowDeleting="GridView2_RowDeleting" >
                                                <Columns>
                                                    <asp:TemplateField HeaderText="Sl.No">
                                                        <ItemTemplate>
                                                            <%# Container.DataItemIndex + 1 %>
                                                        </ItemTemplate>
                                                    </asp:TemplateField>
                                                    <asp:TemplateField HeaderText="Supportiong Documents">
                                                        <ItemTemplate>
                                                            <asp:Label ID="lblSupportingDocument" runat="server" Text='<%#Eval("SupportingDocument") %>'></asp:Label>
                                                        </ItemTemplate>
                                                    </asp:TemplateField>
                                                    <asp:TemplateField HeaderText="Delete" ShowHeader="false">
                                                        <ItemTemplate>
                                                            <asp:ImageButton ID="imgbtnDelete" runat="server" ImageUrl="~/images/delete.png" CommandName="Cancel" />
                                                        </ItemTemplate>
                                                    </asp:TemplateField>

                                                </Columns>
                                            </asp:GridView>

and my code behind is

C#

protected void Page_Load(object sender, EventArgs e)
    {
      if (!IsPostBack)
        {
           if (string.IsNullOrEmpty(Request.QueryString["id"]) == false)
            {
                bind_SupportingDocumentGrid(id);

            }

        }
    }
void bind_SupportingDocumentGrid(int id)
    {
        List<TblFinancialTransactionSupportDocumentDetail> lstFTSD = ServiceAccess.GetProxy().GetAllFinancialTransactionSupportDocumentDetails();
        var x = (from y in lstFTSD
                 where y.FinancialTransactionId == id
                 select new
                 {
                     y.SupportingDocument
                 }).ToList();
        GridView2.DataSource = x;
        GridView2.DataBind();
    }
protected void GridView2_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        List<TblFinancialTransactionSupportDocumentDetail> lstFTSD = ServiceAccess.GetProxy().GetAllFinancialTransactionSupportDocumentDetails();
        Label lblSupportingDocument = (Label)GridView2.Rows[e.RowIndex].FindControl("lblSupportingDocument");
        var x = (from y in lstFTSD
                 where y.FinancialTransactionId == Convert.ToInt32(Request.QueryString["id"]) &&
                 y.SupportingDocument == (lblSupportingDocument).ToString()
                 select new
                 {
                     y.FinancialTransactionSupportDocumentDetailId
                 }).ToList();
        ServiceAccess.GetProxy().DeleteFinancialTransactionSupportDocumentDetail(Convert.ToInt32(x));
        bind_SupportingDocumentGrid(Convert.ToInt32(Request.QueryString["id"]));
    }

but somehow it is now working and i found using breakpoint is "GridView2_RowDeleting" event is not generating. kind help me to overcome from this problem.
thanks in advance.
:)

Posted 13-Jan-14 18:20pm

Amit Kumar143

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5 solutions

Solution 3

Its not going to execute coz u have not added any commandfields

C#

<asp:commandfield showdeletebutton="True" />

so u have to write that inside click event of image button

try it and let me know..

Posted 13-Jan-14 18:44pm

Suk@nta

Updated 13-Jan-14 18:45pm

v2

Solution 4

XML

<ItemTemplate>
    <asp:ImageButton ID="imgbtnDelete" runat="server" ImageUrl="~/images/delete.png" CommandName="Cancel" />
</ItemTemplate>

As you are using ImageButton and you have a CommandName, so you should handle the GridView.RowCommand Event[^].

For that declare OnRowCommand in GridView Markup.

ASP.NET

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="false" Width="200" GridLines="None" OnRowCancelingEdit="GridView2_RowCancelingEdit" OnRowCommand="GridView2_RowCommand" >

Then define the Event on Code Behind like...

C#

protected void GridView2_RowCommand(Object sender, GridViewCommandEventArgs e)
{
    // If multiple buttons are used in a GridView control, use the
    // CommandName property to determine which button was clicked.
    if(e.CommandName == "Cancel")
    {
        // Write your Delete Logic.
    }
}

Posted 13-Jan-14 19:48pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Solution 5

should have a button whose CommandName is "Delete":

C#

<asp:templatefield headertext="Delete" showheader="false" xmlns:asp="#unknown">
   <itemtemplate>
      <asp:imagebutton id="imgbtnDelete" runat="server" imageurl="~/images/delete.png" />
   </itemtemplate>
</asp:templatefield>

Posted 14-Jan-14 1:26am

Amit Kumar143

Solution 1

Refer :Asp.net gridview delete with imagebutton and javascript[^]

in the above link server side code is in vb.net.you can convert it into C# using Convert vb to c#/[^]
This may help.

Posted 13-Jan-14 18:34pm

Gitanjali Singh

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TrushnaK · Accepted Answer · 2014-01-13T18:38:00

Solution 2

refer below link will get what you want exactly:-
http://www.aspsnippets.com/Articles/ASPNet-GridView---Delete-Row-with-Confirmation.aspx[^]

Posted 13-Jan-14 18:38pm

TrushnaK