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Binding DropDownList to Dictionary<string><string>

Trying to bind a DropDown to a Dictionary<string><string> gets the following error. What property should I be using if it does not like "Keys" and "Values"?

DataBinding: 'System.Collections.Generic.KeyValuePair`2[[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' does not contain a property with the name 'Keys'.

<asp:ObjectDataSource ID="StatesDataSource" runat="server"
SelectMethod="_USStates" TypeName="Utils"></asp:ObjectDataSource>

<asp:DropDownList
ID="_drp_State"
runat="server"
DataSourceID="StatesDataSource"
DataValueField="Keys"
DataTextField="Keys">
</asp:DropDownList>

SOLUTION

Jaime Olivares

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See answer

Chiliyago

ASKER

Does not like Key either.

Error:
DataBinding: 'Utils+States' does not contain a property with the name 'Key'.

<asp:ObjectDataSource ID="StatesDataSource1" runat="server"
SelectMethod="_USStates" TypeName="Utils"></asp:ObjectDataSource>

<asp:DropDownList
                          ID="_drp_State"
                          runat="server"
                          DataSourceID="StatesDataSource2"
                          DataValueField="Key"
                          DataTextField="Key"
                          SelectedValue='<%#Bind("State")%>'
                          >

                          </asp:DropDownList>

ASKER CERTIFIED SOLUTION