How to get the value of dynamically created checkbox in asp.

sri dar

11y3.8k.NET

Hi,

This is sridhar,i m adding checkbox controls dynamically in asp.net gridview like this
CheckBox cb = new CheckBox();
cb.EnableViewState = true;
cb.ID = "chkbox" ;
GridView1.Rows[j].Cells[mcount].Controls.Add(cb);
and i want to access that checkbox is checked or not on button click event....

Any one Help me...

With Regards
S.Sridhar

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Manas Mohapatra11y ago
If you are binding data control in Page_Load() method then use following process:
Bind data to your when for first time means when no postback.

protected void Page_Load(object sender, EventArgs e)
{
   if (!this.IsPostBack)
   {
        // Call method to load bind to grid ...
   }
}

If it doesn't resolve your problem then provide whole code snippet.
0
sri dar11y ago
Thanks for your Reply....Vicky Bhatt

My requirement is want create header coloumn dynamically and add checkbox dynamically to corresponding header coloumn.

I m done with above process... but i m not able to access the value of dynamically added checkbox value if it is checked or not...

Thats the problem for me...

With Regards
S.Sridhar
0

Vicky Bhatt11y ago

Hi Sridar,

You need to create dynamic controls on every postback since it is disposed at the end of the current life-cycle. But RowDataBound is just triggered when you databind the GridView what is done typically only if(!IsPostBack) (at the first time the page loads).

You should create dynamic controls in RowCreated instead which is called on every postback. You can databind these controls then in RowDataBound if you want, since RowCreated is triggered first.

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { CheckBox chk = new CheckBox();         chk.EnableViewState = true;         chk.Enabled = true;         chk.ID = "chkb";         e.Row.Cells[1].Controls.Add(chk); } }  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { var chk = (CheckBox)e.Row.FindControl("chkb"); // databind it here according to the DataSource in e.Row.DataItem } }

hope you get your answer. If you get ur answer plz accept answer.

sri dar11y ago
Thanks for your reply...

When i execute your code...its not getting checked check box value...is always getting null Value...

Tell me any other way to access checked check box value..
with Regards
S.Sridhar
0
Manas Mohapatra11y ago
foreach (GridViewRow row in GridView1.Rows)
{
      CheckBox chk = (CheckBox) row.FindControl("chkbox");
       if (chk != null && chk.Checked)
      {
            // ...get value by chk.Text.ToString()
      }
}
0