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Asked: 2026-05-13T17:24:45+00:00

I have a dictionary object <string, string> and would like to bind it to

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I have a dictionary object <string, string> and would like to bind it to a repeater. However, I’m not sure what to put in the aspx markup to actually display the key-value pair. There are no errors thrown and I can get it to work with a List. How do I get a dictionary to display in a repeater?

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1 Answer

  1. Editorial Team

    An IDictionary<TKey,TValue> is also an ICollection<KeyValuePair<TKey, TValue>>.

    You need to bind to something like (untested):

    ((KeyValuePair<string,string>)Container.DataItem).Key
((KeyValuePair<string,string>)Container.DataItem).Value

    Note that the order in which the items are returned is undefined. They may well be returned in the insertion order for small dictionaries, but this is not guaranteed. If you need a guaranteed order, SortedDictionary<TKey, TValue> sorts by key.

    Or if you need a different sort order (e.g. by value), you could create a List<KeyValuePair<string,string>> of your key-value pairs, then sort it, and bind to the sorted list.

    Answer:
    I used this code in the markup to display the key and value individually:

    <%# DataBinder.Eval((System.Collections.Generic.KeyValuePair<string, string>)Container.DataItem,"Key") %>
<%# DataBinder.Eval((System.Collections.Generic.KeyValuePair<string, string>)Container.DataItem,"Value") %>
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