VB - how to link up a Check_change to code behind for a checkbox
How do I enable a check_change for a checkbox in VB.
Here is what I have so far.
Code Behind:
Protected Sub CheckBoxCash_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBoxCash.CheckedChanged
Label1.Text = "Cash"
End Sub
Front end code:
<asp:Label ID="Label1" runat="server" Text="Empty"></asp:Label>
&开发者_如何学Golt;asp:CheckBox ID="CheckBoxPoints" runat="server" Checked="True" />
It looks like you're not doing anything that specifically requires a postback here. In that case, I'd skip the postback entirely an do it more like this:
<asp:Label ID="Label1" runat="server" Text="Empty"></asp:Label>
<asp:CheckBox ID="CheckBoxPoints" runat="server" Checked="True" onclick="document.getElementById('Label1').value = 'Cash';" />
Of course, that's the simple version. Production code would also involve checking the label's clientid property in case these controls ever end up inside a naming container (like an asp:panel or gridview). I'd also look for a fallback for when javascript is not enabled, but in this case the Check_Changed server event depends on javascript to fire anyway.
I figured it out, I forgot to set the postback to true
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