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

Question

Hi This is sridhari 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

Manas Mohapatra · Answer

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.

sri dar · Answer

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

Vicky Bhatt · Answer

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 dar · Answer

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

Manas Mohapatra · Answer

foreach (GridViewRow row in GridView1.Rows) { CheckBox chk = (CheckBox) row.FindControl(chkbox); if (chk != null && chk.Checked) { // ...get value by chk.Text.ToString() } }