Hi Patrick,
Have you got a chance to view the suggestions in my last reply or have you
got any further progress on this issue? If there're anything else we can
help, please feel free to post here. Thanks,
Steven Cheng
Microsoft Online Support
Get Secure!
www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)
--------------------
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| From:
(E-Mail Removed) (Steven Cheng[MSFT])
| Organization: Microsoft
| Date: Wed, 17 Aug 2005 03:20:57 GMT
| Subject: RE: Datagrid- adding/editing record with a column that uses a
drop dow
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| Hi Patrick,
|
| Welcome to MSDN newsgroup.
| As for the Custom DropDownColumn in the below tech article:
|
|
http://msdn.microsoft.com/library/en...stomcolumns.as
| p?frame=true#creatingcustomcolumns_topic6
|
| it's "DataSource" property is used to populate the DropDownList, as you
| mentioend that if you set the datasource at
| DataGrid_Edit event handler, it's ok for bind items to the dropdownlist
| in Edit template. However, since the DropDownList in the Footer template
| need to be bind everytime no matter the edit event is fired or not, wo
| should assign the DataSource in another place which will be executed
| everytime. I think Page's Init or Load event is a proper place, we can
| just find the DropDownColumn from the DataGrid's Columns collection and
| assign the datasource for it.
|
| Thanks,
|
| Steven Cheng
| Microsoft Online Support
|
| Get Secure!
www.microsoft.com/security
| (This posting is provided "AS IS", with no warranties, and confers no
| rights.)
| --------------------
| | Thread-Topic: Datagrid- adding/editing record with a column that uses a
| drop dow
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| | Subject: RE: Datagrid- adding/editing record with a column that uses a
| drop dow
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microsoft.public.dotnet.framework.adonet:34112
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| |
| | I tried adding the following to The DataGridColumn class:
| | 'Case ListItemType.Footer
| | ' AddHandler cell.DataBinding, AddressOf
| | EditItemDataBinding
| | ' Dim DDL As New DropDownList
| | ' DDL.ID = "add" + DataField
| | ' cell.Controls.Add(DDL)
| |
| | but when the page loads and following hitting these few lines
| | EditItemDataBinding is hit, I get a null exception on For Each
| DataSourceItem
| | In DataSource, as DataSource had only been initialised at protected
void
| | UsersDataGrid_Edit(Object sender, DataGridCommandEventArgs e) , which
is
| good
| | enough for data editing, but not for the Footer, how/where could I
| initialise
| | the DataSource for the footer?
| |
| | "Patrick" wrote:
| |
| | > ADO.NET Datagrid do NOT provide native support for
| | > 1) Adding records
| | > 2) Using Drop-down lists in editing a column
| | >
| | > However,
| | > 1)
http://aspnet.4guysfromrolla.com/articles/021203-1.aspx provides
an
| | > excellent guide on how to add records using template columns
| (textboxes, etc.
| | > at the footer, and implementing the OnItemCommand event handler)
| | > 2)
| | >
|
http://msdn.microsoft.com/library/en...stomcolumns.as
| p?frame=true#creatingcustomcolumns_topic6
| | > provides an equally excellent article on how to use a drop down column
| | >
| | > However, I can I combine the two together such that
| | > 1) In Normal view (when not editing), all data appears as plain-text
| | > 2) When Edit button/link is clicked, the column specified to use
| | > DropDownColumn appears as a drop-down list
| | > 3) At the footer, a drop-down list of DropDownColumn type is used.
| | >
| |
|
|
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