Error while editing gridview

Question

User314352500 posted

hi

I have a gridview with edit and delete.

When I click Edit in the row of gridview, I get Object Reference not set to an instance of object in this line of code-behind:

Object reference not set to an instance of an object.
imgbtnEdit.Enabled = true;

Can anyone please help me with this?

Thank you in advance.

My code below

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ImageButton imgbtnEdit = (ImageButton)e.Row.FindControl("imgbtnEdit");
        Label testing = (Label)e.Row.FindControl("testing");

        if (!string.IsNullOrEmpty(testing.Text.ToString()))
        {
            imgbtnEdit.Enabled = true;
        }
    }
}


<asp:TemplateField>
    <ItemTemplate>
        <center>
            <asp:ImageButton ID="imgbtnEdit" CommandName="Edit" runat="server" ImageUrl="/Images/icon.gif" Enabled="false" />
        </center>
    </ItemTemplate>
    <EditItemTemplate>
        <center>
            <asp:ImageButton ID="imgbtnUpdate" CommandName="Update" runat="server" ImageUrl="/Images/update.gif" />
            <asp:ImageButton ID="imgbtnCancel" runat="server" CommandName="Cancel" ImageUrl="/Images/delete.gif" />
    </EditItemTemplate>
</asp:TemplateField>

Can anyone please help me with this?

Thank you in advance.

My code below

Answer 1

User-943250815 posted

You are using template so try e.Row.Cells[n] where n is column number of gridview

ImageButton imgbtnEdit = (ImageButton)e.Row.Cells[0].FindControl("imgbtnEdit")

Answer 2

User-939850651 posted

Hi Uncle Vince,

Error while editing gridview [duplicate]

Based on your description, I think you may have encountered the same problem as in this case.

Have you tried the solutions provided in this case?

If I misunderstood what you mean, could you provide more details?

Best regards,

Xudong Peng