GridView...Prob lem

[Miaaa Mukherjee]

I m creating the project in asp.net using c# and vb languages in 2005.

I have used the asp standard controls(with table<td><tr>) and gridview to design the form.

I m using sqldatasource to insert and update data from sql server 2005.

I have written the following code

<script runat="server">
Private Sub Page_Load()
If Not Request.Form("S UBMIT") Is Nothing Then
srccompany.Inse rt()
End If
End Sub
</script>

<asp:SqlDataSou rce
id="srccompany "
SelectCommand=" SELECT * FROM companymaster"
InsertCommand=" INSERT companymaster(c ompanyname)
VALUES (@companyname)"

UpdateCommand=" UPDATE companymaster SET companyname=@co mpanyname WHERE companyid=1"
DeleteCommand=" DELETE companymaster WHERE companyname=@co mpanyname"
ConnectionStrin g="<%$ ConnectionStrin gs:companymaste r %>"
Runat="server">
</asp:SqlDataSour ce>

<asp:GridView
id="GridCompany Master"
DataSourceID="s rccompany"
Runat="server" />

Please help me to insert the data in sql server.i m not been able to insert the data is there any problem in coding..

Also i m not been able to edit the data and store back to sql server.

Only i can do is i can view the contents in gridview

Please give me some tips