GridView列宽

Question

I'm using VS 2010. I have a GridView with few template columns. I want the 2nd column to not be visible at all, but still to be existed so javascript will be able to see it's value. Does someone knows how to set this width value?

Thanks

Answer 1

将HiddenField放在第一列中，然后将需要将其放在第二列中，而不是创建第二列。

Answer 2

The Problem:

Your problem originates from the fact that when you hide a data-bound GridView's column, its bounded value is no longer available and if you tried to access it you will get an empty string.

The solution:

Enable 2 events in in your gridview:

RowDataBound: In this event you can access the hidden cell value (before hiding it yet)

protected void MyGridView_RowDataBound(Object sender, GridViewRowEventArgs)
{
   // Here you store the value
   this.sID = e.Row.Cells[1].Text;
}

RowCreated: In this event you hide the cell, write this in the event handler:

protected void MyGridView_RowCreated(Object sender, GridViewRowEventArgs)
{
    // then you hide the cell (Only the cell not the column)
    e.Row.Cells[1].Visible = false;
}

In these codes, after we save the value we need in another variable/array whatever, we can easily hide the cell. You can put that value in a hidden input to enable accessing the value from javascript.