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PODataGridTextColumn showing/editing time only, date bound to property of parent usercontrol
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16819107
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2013-05-29T16:18:07.323
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2013-06-06T15:34:24.650
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I have a <code>DataGrid</code> within a <code>UserControl</code>. I want to have a <code>DataGridTextColumn</code> bound to a <code>DateTime</code> field, showing only the time. When the user enters a time, the date portion (year, month, day) should be taken from a property (<code>AttendDate</code>) on the <code>UserControl</code>. My first thought was to bind the user control's property to <code>ConverterParameter</code>: <pre><code><DataGridTextColumn Header="From" Binding="{Binding FromDate, Converter={StaticResource TimeConverter},ConverterParameter={Binding AttendDate,ElementName=UC}}" /> </code></pre> but <code>ConverterParameter</code> doesn't take a binding. I then thought to do this using a <code>MultiBinding</code>: <pre><code><DataGridTextColumn Header="משעה" Binding="{Binding FromDate, Converter={StaticResource TimeConverter}}" /> <DataGridTextColumn.Binding> <MultiBinding Converter="{StaticResource TimeConverter}"> <Binding Path="FromDate" /> <Binding Path="AttendDate" ElementName="UC" /> </MultiBinding> </DataGridTextColumn.Binding> </DataGridTextColumn> </code></pre> However <code>IMultiValueConverter.Convert</code> -- which takes multiple parameters -- is only called when formatting the display. <code>IMultiValueConverter.ConvertBack</code> which is called on editing, only takes one parameter - the entered string. How can I do this? (I am not using MVVM; not something I can change.)
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<wpf><binding>
Title
DataGridTextColumn showing/editing time only, date bound to property of parent usercontrol
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1. USZev Spitz
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