Urgent !!! gridview problem

wzhappy520

I use template columns in gridview, and one of them uses textbox to enter the number, to determine whether to enter a value. If the value is entered, the row is saved to the database. What should I write?

xing_532

Use a verification control in the foreground or Findcontrol in the background to find the Textbox and see if it is empty

grass0423

The first child of the table is text
The second one is the control you added

grass0423

for (...)
{
TextBox tb = (TextBox) GridView.Rows [i] .Cells [0] .FindControl ("");
     if (tb.Text! = "")
     {
     sql ...
     }
}

wzhappy520

just: I wrote it like this, but I always report "the object reference is not set to the instance of the object"
do not know why

34rere

Take a look at the code
Can't tell clearly