WebGrid不清楚..下边这个是gridview的例子.希望有点帮助
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer
Dim cb1 As New CheckBox
Dim a As Integer
For i = 0 To GridView1.Rows.Count - 1
cb1 = GridView1.Rows(i).Cells(4).FindControl("cb1")
a = GridView1.Rows(i).Cells(0).Text
If cb1.Checked Then
cmd1.Connection = con
cmd1.CommandType = Data.CommandType.Text
cmd1.CommandText = "delete from tt where id='" & a & "'"
cmd1.ExecuteNonQuery()
End If
Next
GridView1.DataBind()
End Sub