How do I find control in datagrid, in ASP.NET

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Hi there;
I have a user control which I've used a DataGrid on it. I wanna find control on it so I have an ItemCommand event with following code:

if (e.CommandName == "Edit")
            {
                pnlUpdate.Visible = true;
                pnlDelete.Visible = false;
                string Code = e.Item.FindControl("base_NationalCode").ToString();
            }

when I run the project I become with this error

Quote:
Object reference not set to an instance of an object

would you please help me in solving this problem;
Thank you in advance

What I have tried:

- - - -

Posted 27-May-20 19:37pm

samimisonia

Updated 27-May-20 22:17pm

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Maciej Los · Answer 1 · 2020-05-27T22:18:00

Solution 1

If you know the column index, you can try:

C#

string Code = e.Row.Cells[index].Text.ToString()

or:

C#

YourControlType yc = (YourControlType)e.Row.FindControl("base_NationalCode");
string Code = string.Empty;
if(yc!=null) Code = yc.ToString();

Posted 27-May-20 22:18pm

Maciej Los