Introducing the new Dynamic Data

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re: Introducing the new Dynamic Data

Dan Miser — Tue, 11 Dec 2007 17:58:53 GMT

Where do we report issues with this area? I have a repeatable stack trace that gets thrown (see below). I'd be happy to wrap it up into a test case that you can use to fix it if I knew where to go with it.

Of course, if you know about this problem already, then never mind. :-)

Source Error:

Line 4: string GetDisplayString() {

Line 5: var column = (System.Web.DynamicData.DynamicMetaForeignKeyMember)MetaMember;

Line 6: return FormatDataValue(column.OtherMetaTable.GetDisplayString(DataValue));

Line 7: }

Line 8: </script>

Source File: c:\moonlite\VendTrack\VendTrack\App_Shared\DynamicDataFields\ForeignKey.ascx Line: 6

Stack Trace:

[InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.String'.]

System.Web.DynamicData.DynamicMetaTable.GetDisplayString(Object value) +138

ASP.app_shared_dynamicdatafields_foreignkey_ascx.GetDisplayString() in c:\moonlite\VendTrack\VendTrack\App_Shared\DynamicDataFields\ForeignKey.ascx:6

ASP.app_shared_dynamicdatafields_foreignkey_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in c:\moonlite\VendTrack\VendTrack\App_Shared\DynamicDataFields\ForeignKey.ascx:10

--- stack trace continues on from here ---

re: Introducing the new Dynamic Data

davidebb — Tue, 11 Dec 2007 23:12:07 GMT

Hi Dan,

We have set up a forum for this feature, so this is the best place to report issues. Here is the link: http://forums.asp.net/1145.aspx.

Could you repost it here and we'll follow up there?

Quick question for the follow up: what is the list of columns in the foreign key's table? I think this bug would happen if there are no string columns at all. Good find!

David

re: Introducing the new Dynamic Data

Dan Miser — Wed, 12 Dec 2007 02:05:26 GMT

I posted over there with a bit more information, but yes, you hit it perfectly. There were no string columns in the FK table. Indeed, that is the workaround, to just add a simple unused varchar to that table.

Thanks for your look into this!

Dan

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作者HartmutWilms译者张海龙发布于2007年12月23日下午10时44分社区

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