[CLOSED] ComboBox has no SelectedIndex property

[Alaswad]

Dears,

I have the following ComboBox definitions:

<ext:ComboBox Flex="1" ID="ddlAccountType" runat="server"  LabelAlign="Left" FieldLabel="Account Type">
		<Items>
			<ext:ListItem  Text="Customer" Value="Customer"></ext:ListItem>
			<ext:ListItem  Text="Supplier" Value="Supplier"></ext:ListItem>
		</Items>                                                  
</ext:ComboBox>

I want to test, whether the ComboBox has selection or not:

 If ddlAccountType.SelectedIndex > -1 Then

 End If

This is the error I get:

'SelectedIndex' is not a member of 'Ext.Net.ComboBox'.

What I should do?!

Regards,
Alaswad

[fabricio.murta]

Hello Alaswad!

This falls back to the "code behind don't know what you clicked/changed on client side" matter. Let me know if you want to know more about this.

To have code behind know what the user selected on a combo box (or any other component) you have to explicitly pass the value from the client call (or direct method). If it was not this way, every little code behind call would mean the user passing up all the page's status, which would be extremely cumbersome in the vast majority of cases.

Here's an example showing how to pass arguments to directMethods: DirectMethod Overview (third item).

The example above actually shows you how to pass the selected value from a combo box, so I believe this is all you need. Let me know otherwise.