Index was out of range. Must be non-negative and less than the size of the collection

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hi
I want to delete multiple report in grid view and i am facing some problem please help me .

C#

protected void LinkButton1_Click(object sender, EventArgs e)
{
   foreach (GridViewRow row in GridView1.Rows)
   {
     CheckBox cb = (CheckBox)row.FindControl("chkSelect");
     if (cb.Checked)
     {
      int rid = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);
      SqlDataSource1.DeleteParameters["id"].DefaultValue = rid.ToString();
      SqlDataSource1.Delete();
     }
   }
}

Posted 5-Sep-10 23:36pm

raj_singla79

Updated 5-Sep-10 23:51pm

Sandeep Mewara

v3

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Sandeep Mewara · Answer 1 · 2010-09-05T23:56:00

Not very clear what are your trying to do here:

C#

int rid = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);      
SqlDataSource1.DeleteParameters["id"].DefaultValue = rid.ToString();      
SqlDataSource1.Delete();

Looks like you ware trying to remove the whole row that were selected. Don't know where is it related to reports!

If you are trying to remove rows, then I doubt it is not the correct way. Use DEBUGGER and you will see that once you delete a particular row then the row counts reduces and thus the for loop goes out of existing row counts.

raju melveetilpurayil · Answer 2 · 2010-09-05T23:56:00

Solution 2

use debugger [use break points and debug] . you can solve this problem yourself very easily.

Posted 5-Sep-10 23:56pm

raju melveetilpurayil

sazhubo · Answer 3 · 2010-09-06T18:01:00

Solution 3

may by something wrong with this

Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);

code snippet.
The count of Datakeys is 0 may be .
Have you set the datakey to gridview correctly?

Posted 6-Sep-10 18:01pm

sazhubo

Mehul M Thakkar · Answer 4 · 2010-09-06T18:51:00

Solution 4

Check this link,

http://aspalliance.com/774_Maintaining_State_of_CheckBoxes_While_Paging_in_a_GridView_Control.all[^]

Hope this will help you.

Posted 6-Sep-10 18:51pm

Mehul M Thakkar