Forms Data Controls :: Default And Null Values When Inserting?

Nov 18, 2010

have a form where I insert record via DetailView control. I have some string fields. For each string field (nvarchar in sql) I have defined the Default Value in the SQL SERVER (2008) as ''. Also I have added to each InsertParameter of the DetailsView a DefaultValue="".Yet still, if the user enters no value for one of the string fields, NULL is inserted into the table.

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[Code]....

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[Code]....

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[code]....

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[Code]....

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[code]....

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[Code]....

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[Code]....

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[Code]....

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I have a gridview which I use to add items through the footer and the EmptyDataTemplate. There is a date field. I want to set the default of it to the current system date.

gridview template code is as follows...

[Code]....

Empty data template code is as follows...

[Code]....

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[Code]....

My query is like this:

[Code]....

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[Code]....

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I've got a detailsview control on a page. The table that it interacts with has a DateTime column in it. This column is nullable, and a lot of the records have null for that value. In the EditItemTemplate I've got a calendar control. When I try to put the DetailsView into edit mode, I get the following error message:

System.InvalidCastException was unhandled by user code
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at ASP.entries_aspx.__DataBinding__control44(Object sender, EventArgs e) in c:inetpubwwwrootMediaLibraryEntries.aspx:line 103
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at System.Web.UI.Control.DataBindChildren()

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