Multi select combobox items which are dynamically loaded.

[nagarjun]

Hi,

    I need to have a multiselect radcombobox. I have referred to the examples provided in Url: http://www.telerik.com/community/code-library/aspnet-ajax/combobox/using-checkboxes-for-multi-item-selection.aspx.

  It was really great. Here the problem is i will not add items at client side. In my project i have to add items in to combobox dynamically as :

for(int i=0; i<3; i++)

{

RadComboBoxItem rcb = new RadComboBoxItem(i.ToString());

RadComboBox1.Items.Add(rcb);   // RadComboBox1 is the name of combobox.

}

I tried to modify example which you have given. I have removed items part and added items as shown above. I was able to see the checkbox's for items but not the text of RadComboBox. When i have selected some of them and clicked button to display which items were selected then luckly i could see the correct items which i have checked.

The only problem is i could't see items text, but could see checkbox's for items. Hope you give some idea in this.

Thanks

Nagarjun S.

[Axel]

hi Nagarajun

You've propably solved this by now but the binding to "Text" below actually binds to the radComboboxItem.Text attribute. I got it to work at least.

<ItemTemplate>
    <asp:CheckBox runat="server" ID="CheckBox" onclick="stopPropagation(event);" Text=""/> <%# DataBinder.Eval(Container, "Text")%>
</ItemTemplate>

best of luck
Axel

[Axel]

Hi again,

On a related matter.

I got my multiselect radcombo to work. My combobox is databound, and has a "Select all" as a first item in the itemcollection.
when I bind my dynamic data to the combobox everything is fine except the first item only has a check box but no text ie. not bound to anything as expected.

What is the best/easyest way to display my "Select all" text in the first comboboxlistitem next to the checkbox?

reg.
Axel G

[Yana]

Hi Axel,

Please call DataBind() method of the first item when you add it to the Items collection of the combobox. Let us know how it goes.

Greetings,
Yana
the Telerik team

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[Axel]

Hi Yana,

This worked like a charm. I added databind() (see below) and vola.

thanks.
Axel

 

 

 

ddlDivisions.Items[0].Text = "All";
ddlDivisions.Items[0].Value = "-1";
ddlDivisions.Items[0].DataBind();