DataGrid Cell in Edit Mode not accepting .(Dot) for deimal value in WPF MVVM
c#, datagrid, mvvm, wpf
Solution
The issue may be that you are using `UpdateSourceTrigger=PropertyChanged` which re-evalutes the text on every keystroke, and a number that ends in a decimal point is invalid. Try removing the `UpdateSourceTrigger` setting (therefore reverting to the default - LostFocus)
Problem
I have a DataGrid and whose column are bound to ViewModel Decimal Properties. Decimal Value are showned when a value is added from a ViewModel but when i edit the same cell and remove content and then add, the cell is not accepting .Period. How can i edit a cell then. ``` <DataGrid Name="dgSales" Height="300" Margin="0,3,0,0" IsSynchronizedWithCurrentItem="True" SelectedItem="{Binding SelectedItem,Converter={StaticResource ignoreNewItemPlaceHolderConverter}}" ItemsSource="{Binding StockList,UpdateSourceTrigger=PropertyChanged}" ToolTip="{Binding RelativeSource={RelativeSource Self},Path=(Validation.Errors)[0].ErrorContent}" GotKeyboardFocus="dgSales_GotKeyboardFocus" CurrentCellChanged="dgSales_CurrentCellChanged"> <DataGrid.Columns> <DataGridTextColumn Header="S No." Width="SizeToCells" MinWidth="60" Binding="{Binding SNo}" IsReadOnly="True" /> <DataGridTemplateColumn Header="Stock Name" Width="280"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Text="{Binding StockName}"/> </DataTemplate> </DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <ComboBox Width="280" Name="cmbStock" ItemsSource="{Binding Path=Stocks}" FocusManager.FocusedElement="{Binding RelativeSource={RelativeSource Self}}" ></ComboBox> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> </DataGridTemplateColumn> <DataGridTextColumn Header="Unit Price" Width="SizeToCells" MinWidth="80" Binding="{Binding UnitPrice,UpdateSourceTrigger=PropertyChanged}" /> <DataGridTextColumn Header="Unit" Width="SizeToCells" MinWidth="80" Binding="{Binding Unit}" IsReadOnly="True"/> <DataGridTextColumn Header="Quantity" Width="SizeToCells" MinWidth="80" Binding="{Binding Quantity,UpdateSourceTrigger=PropertyChanged}" /> <DataGridTextColumn Header="Discount" Width="SizeToCells" MinWidth="80" Binding="{Binding Discount,UpdateSourceTrigger=PropertyChanged}"/> <DataGridTextColumn Header="Amount" Width="SizeToCells" MinWidth="100" Binding="{Binding Amount,StringFormat=\{0:n2\}}" IsReadOnly="True" /> </DataGrid.Columns> </DataGrid> ```