Total Muffled

Hi all

Complete newby trying to understand something

I have made my own form with some fields and then dragged a SqlDataSource
onto the page and made an Insert to go with the SqlDataSource.

I have a button which calls this

Protected Sub InsertTextBox_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles InsertTextBox.Click

Me.SqlDataSource1.InsertParameters.Add("@CompanyID",
Me.CompanyIDTextBox.Text)

Me.SqlDataSource1.InsertParameters.Add("@ContactName",
Me.ContactNameTextBox.Text)

Me.SqlDataSource1.InsertParameters.Add("@CompanyName",
Me.CompanyNameTextBox.Text)

Me.SqlDataSource1.InsertParameters.Add("@Postcode", Me.PostCodeTextBox.Text)

Try

Me.SqlDataSource1.Insert()

Catch ex As Exception

Response.Write(ex.Message)

End Try

End Sub

I have checked parameter names etc put it wont put the values to the
parameters. Obviously the .Add is wrong, what should be using?

Cheers