The controller assigns the list to ViewData:
ViewData["ImageLocatons"] = new SelectList(gvr.ImageLocations);< /pre>And the view tries to present it in the drop-down list:
<%= Html.DropDownList("Location", ViewData["ImageLocations"] as SelectList ) %>But when I run it, I get this error:
No ViewData item of type "IEnumerable" has a "location" key.Any Thoughts why this doesn't work? Also, shouldn't it look for the key "ImageLocations" instead of locations?
ViewData["Location"] = new SelectList(gvr.ImageLocations);
and
<%= Html.DropDownList("Location")% >
Your life will be much easier.
When setting the ViewData in the example, also check for spelling errors (missing i) (ImageLocatons => ImageLocations). This will cause the pass The second parameter given to DropDownList is null. This will cause the MVC engine to search for Location.
I am trying to pass some list of items to the view via ViewData to create a drop-down list. It shouldn’t be too difficult, but I’m new to MVC, so I might be missing something obvious.
The controller assigns the list to ViewData:
< /p>
ViewData["ImageLocatons"] = new SelectList(gvr.ImageLocations);
And the view tries to present it in the drop-down list:
<%= Html.DropDownList("Location", ViewData["ImageLocations"] as SelectList) %>
But when I run it, I get this error:
No The ViewData item of type "IEnumerable" has a "location" key.
Any ideas why this doesn't work? Also, shouldn't it look for the key "ImageLocations" instead of locations?
If you use:
ViewData["Location"] = new SelectList(gvr .ImageLocations);
and
<%= Html.DropDownList("Location") %>
Your life will It’s a lot easier.
When setting the ViewData in the example, also check for spelling errors (missing i) (ImageLocatons => ImageLocations). This will cause the second parameter passed to the DropDownList to be null. This will Cause the MVC engine to search for Location.