Datagrid (c# Windows Form) : How to get the value of a column which is in the same row of the check box cell that user has clicked ?

The solution is here :

static int SelectColumnIndex = 0;
PerformAction_Click(object sender, System.EventArgs e)
{
   string data = string.Empty;
   foreach(DataGridViewRow row in MyDataGridView.Rows)
   {
     if(row.Cells[SelectColumnIndex].Value!=null &&
            Convert.ToBoolean(row.Cells[SelectColumnIndex].Value) == true)
     {
       foreach(DataGridViewCell cell in row.Cells)
       {
         if(cell.OwningColumn.Index!= SelectColumnIndex)
         {
           data+= (cell.Value + " ") ; // do some thing
         }
       }
       data+="\n";
     }
  }
  MessageBox.Show(data, "Data");
}

And if we want to get the value of a particular column, use the code below :

static int SelectColumnIndex = 0;
PerformAction_Click(object sender, System.EventArgs e)
{
   string data = string.Empty;
   foreach(DataGridViewRow row in MyDataGridView.Rows)
   {
     if(row.Cells[SelectColumnIndex].Value!=null &&
            Convert.ToBoolean(row.Cells[SelectColumnIndex].Value) == true)
     {
       foreach(DataGridViewCell cell in row.Cells)
       {
         if(cell.OwningColumn.Index!= SelectColumnIndex)
         {
           data+= (row.Cells[1].Value + " ") ; // do some thing
          }
       }
       data+="\n";
     }
  }
  MessageBox.Show(data, "Data");
}