C# .NET - How to delete rows and add rows in grid view

I am developing data grid view in windows forms so that in data grid view i want to add rows and delete rows 

Hi kavitha,
you check this link.....it will help you
http://technico.qnownow.com/2012/03/29/how-to-insert-update-delete-rows-in-asp-net-gridview-control/ 

This one is also a helpful examples: see: http://www.java2s.com/Tutorial/CSharp/0460__GUI-Windows-Forms/TableCreateRowDelete.htm 

After the reflection, you can see the below code,

public virtual int Add()

{

    if (this.DataGridView.DataSource != null)

    {

      throw new InvalidOperationException(SR.GetString("DataGridViewRowCollection_AddUnboundRow"));

    }

    if (this.DataGridView.NoDimensionChangeAllowed)

    {

      throw new InvalidOperationException(SR.GetString("DataGridView_ForbiddenOperationInEventHandler"));

    }

    return this.AddInternal(false, null);

}

if you set the property of datasource to be data  and when you add rows and columns, an error occurs. So, you need to add binding source and use it to connect the datatable with gridview. Thus, you can realize your task.

people who want to create data grid view can go to this page http://www.e-iceblue.com/Knowledgebase/Spire.PDF/Demos/Grid.html#twoj_fragment1-1 

 data grid view event to be rised when i delete the row.so  how can i implement the event and when i selecte the multiple rows to delete

I will try,but I am a little busy now.