Error: "Both DataSource and DataSourceID are defined on 'TreeView1'. Remove one definition."

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Hello,

I am getting this error "Both DataSource and DataSourceID are defined on 'TreeView1'. Remove one definition."

Please can you help me.

Thanks.

Posted 8-Oct-13 0:36am

Dhanashri_G

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**tanweer** · Answer 1 · 2013-10-08T00:43:00

Hi,
It is much clear that you have set both DataSource and DataSourceID for your Treeview, remove one of two either use:

C#

TreeView1.DataSource = SiteMapDataSource1;
            TreeView1.DataBind();

or use datasource like

ASP.NET

<asp:treeview id="tvPages" runat="server" showcheckboxes="Leaf" datasourceid="OdsPages" xmlns:asp="#unknown">
                           </asp:treeview>

here OdsPages is ObjectDataSource Class[^]