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Dual Ajaxed combo boxes in RadGrid custom edit form

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Joseph Wong
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Joseph Wong asked on 19 Oct 2008, 11:33 PM

Hi,

I cannot find an adequate example of what I am trying to do. I'd appreciate any help or references to solve this problem:

I have a RadGrid with a custom edit form. In the form I would like to have two RadComboBoxes, say rcbState and rcbCity. I would like the rcbCity to automatically refresh its contents if rcbState changes. Again, I need to do this within the RadGrid FormTemplate.

I am using SQL Datasources:

<asp:SqlDataSource ID="sdsStates" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT * FROM [states] order by state_name"></asp:SqlDataSource>


I don't know what to do for the second "city" datasource.

I am currently using DropDownLists:

                                        <asp:DropDownList ID="ddlStateID" runat="server" SelectedValue='<%# Bind("state_id") %>' AppendDataBoundItems="True" DataSourceID="sdsStates" DataTextField="state_name" CssClass="select" DataValueField="state_id">
                                            <asp:ListItem Selected="True" Text="Select" Value=""></asp:ListItem>
                                        </asp:DropDownList>

... mostly because I can't find an equivalent easy method of binding for the RadComboBox.

Any help is greatly appreciated!

Thanks,
Joseph

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Princy
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answered on 20 Oct 2008, 06:52 AM
Hello Joseph,

Go through the Source code and Description part of the example given in the following online demo link. You will find a similar scenario using GridDropDownColumns in the example wherein on the SelectedIndexChanged of the first combobox, the datasource for the second combobox is changed.
Accessing Cells And Rows

Thanks
Princy.
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Joseph Wong
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