Getting error while deleting Multiple rows from gridview

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System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.<br />
<br />

When i'm deleting single row using checkbox on button click then it is working fine but when i'm deleting multiple row then it is throwing exception.

can anyone help me out?

here is my code-

C#

foreach (GridViewRow row in GridView1.Rows)
        {

            CheckBox chk = (CheckBox)row.FindControl("CheckBox1");
            if (chk.Checked)
            {

                int id = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);
                SqlConnection sqlconn = new SqlConnection("server=.\\sqlexpress;database=practice;integrated security=true");
                SqlCommand sqlcomm = new SqlCommand("delete from prac where id='"+id+"'", sqlconn);
                sqlconn.Open();
                sqlcomm.ExecuteNonQuery();
                sqlconn.Close();
                Label1.Text = "Record Deleted";
                Binddata();
            
            }
        
        
        }

Posted 3-Jan-13 6:47am

Surendra0x2

Updated 3-Jan-13 21:03pm

v3

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fjdiewornncalwe · Accepted Answer · 2013-01-03T07:14:00

Your issue is that you call Binddata() on every iteration of a row.
Move the Binddata() call out of the foreach completely. Don't rebind your data until you are done processing.

C#

foreach (GridViewRow row in GridView1.Rows)
{
   CheckBox chk = (CheckBox)row.FindControl("CheckBox1");
   if (chk.Checked)
   {
      int id = Convert.ToInt32("",GridView1.DataKeys[row.RowIndex].Value);
      SqlConnection sqlconn = new SqlConnection("server=.\\sqlexpress;database=practice;integrated security=true");
      SqlCommand sqlcomm = new SqlCommand("delete from prac where id='"+id+"'", sqlconn);
      sqlconn.Open();
      sqlcomm.ExecuteNonQuery();
      sqlconn.Close();
      Label1.Text = "Record Deleted";           
   }    
}
Binddata();