Question

I have a data grid view and i set it datasource property
as

dgvEmployee.DataSource = mycollection;

i want that grid should have some property like

dgvEmployee.ShowSerialNumber = True;

Any suggestion

Thanks in advance

Answer 1

This piece of code is taken from here

    /// This class extends the the DataGridView so row numbers will 
    /// automatically appear in the row header cells. In this 
    /// implementation, the width of the column that contains the row 
    /// header cells is automatically adjusted to accomodate the row 
    /// numbering.
    /// ******************************************************************
    ///  AUTHOR: Daniel S. Soper
    ///     URL: http://www.danielsoper.com
    ///    DATE: 20 February 2007
    /// LICENSE: Public Domain. Enjoy!   :-)
    /// ******************************************************************
    /// 
    class MyDGV : DataGridView
    {
        public MyDGV()
        {
            //perform any necessary customization initialization here
        } //end default constructor

        protected override void OnRowPostPaint(DataGridViewRowPostPaintEventArgs e)
        { //this method overrides the DataGridView's RowPostPaint event 
          //in order to automatically draw numbers on the row header cells
          //and to automatically adjust the width of the column containing
          //the row header cells so that it can accommodate the new row
          //numbers,

            //store a string representation of the row number in 'strRowNumber'
            string strRowNumber = (e.RowIndex + 1).ToString();

            //prepend leading zeros to the string if necessary to improve
            //appearance. For example, if there are ten rows in the grid,
            //row seven will be numbered as "07" instead of "7". Similarly, if 
            //there are 100 rows in the grid, row seven will be numbered as "007".
            while (strRowNumber.Length < this.RowCount.ToString().Length) strRowNumber = "0" + strRowNumber;

            //determine the display size of the row number string using
            //the DataGridView's current font.
            SizeF size = e.Graphics.MeasureString(strRowNumber, this.Font);

            //adjust the width of the column that contains the row header cells 
            //if necessary
            if (this.RowHeadersWidth < (int)(size.Width + 20)) this.RowHeadersWidth = (int)(size.Width + 20);

            //this brush will be used to draw the row number string on the
            //row header cell using the system's current ControlText color
            Brush b = SystemBrushes.ControlText;

            //draw the row number string on the current row header cell using
            //the brush defined above and the DataGridView's default font
            e.Graphics.DrawString(strRowNumber, this.Font, b, e.RowBounds.Location.X + 15, e.RowBounds.Location.Y + ((e.RowBounds.Height - size.Height) / 2));

            //call the base object's OnRowPostPaint method
            base.OnRowPostPaint(e);
        } //end OnRowPostPaint method
    } //end class