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how to connect bulleted list to gridview

Posted By:      Posted Date: October 09, 2010    Points: 0   Category :ASP.Net

is it possible to connect a bulleted list to a gridview in the same way as connectin a dropdown list to a gridview


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I have a GridView that retrieves a list of uploaded photo rows for the logged-in user.
The GridView is for editing and deleting rows.

The photo Category field in the Gridview is a dropdown list. The text entry field was deleted after converting this field to a Template.

Like the uploaded photos, these Categories are user-specific. They are created in another web page.

Users also have the option to select "none" for the category when they upload an image.

For the GridView:  The Category ID field's ItemTemplate and EditItemTemplate both have a " - None - " choice added to them.

I am getting this error:

'pictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value


Note: The ID for the ItemTemplate for that dropdown list is the ID listed above in the error: "pictureReadOnlyCategories".


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Here is my code for the dropdown list and a screenshot of the Design

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I have a list box that allows for multiple selections (holding down the control key) the selection quantity is basically unlimited, but realistically should never be more than 50 to 100 items from the listing of about 3000 items.

I need to collect the list of selected items from the drop down list and retrieve each of their full records from the item master and populate a gridview.

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field.DataSource = Accounts;


grid.AutoGenerateColumns = false;



I can't get this to work. The page throws an AJAX null exception when this method is called.

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