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.NET Forum / Windows Forms / WinForm General / September 2004

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Datagrid Empty Set

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Jeff Haumesser - 28 Sep 2004 00:45 GMT
Here is one I am stuggling with:

I have a project I'm developing in VB .NET.  I have a datagrid in a window
with two columns.  The first column is readonly and the second column is not
and initialized with Zero's.  The values in column two must be numeric.  How
do I prevent the user from leaving an Empty set in the cell?  I already have
a handler that ensures the user enters numeric values.  I would like to
default to Zero if the user deletes a value or enters an empty set.

Thankyou,

Jeff
Ken Tucker [MVP] - 28 Sep 2004 12:20 GMT
Hi,

       Set the default value for the datacolumn.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlr
fsystemdatadatacolumnclassdefaultvaluetopic.asp


Ken
--------------------
Here is one I am stuggling with:

I have a project I'm developing in VB .NET.  I have a datagrid in a window
with two columns.  The first column is readonly and the second column is not
and initialized with Zero's.  The values in column two must be numeric.  How
do I prevent the user from leaving an Empty set in the cell?  I already have
a handler that ensures the user enters numeric values.  I would like to
default to Zero if the user deletes a value or enters an empty set.

Thankyou,

Jeff
Jeff Haumesser - 28 Sep 2004 12:58 GMT
That was the first thing I tried.  I believe the default value is for Null
values.  I'm trying to default an Empty string.  Is that the same thing?

My datasource is a Custom Collection.  I'm not sure if that has an affect on
the behavior.

> Hi,
>
[quoted text clipped - 19 lines]
>
> Jeff

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