thank you friend,
i have got my problem solved.
i have downloaded the software named " sothink swf easy" from internet.Made an swf file,then cut paste it to the bin of my project,just add a flash player object from com components from toolbox,and put the following code in your pageload event of the form:-
Dim Adapter As New OleDbDataAdapter
Dim Command As New OleDbCommand
Dim xFrom As String = dtpFrom.Value.ToString.Substring(0, dtpFrom.Value.ToString.IndexOf(" "))
Dim xTo As String = dtpTo.Value.ToString.Substring(0, dtpTo.Value.ToString.IndexOf(" "))
sqlQuery = MainQuery ...