Re: Re: Re: Re: Textbox inside datagrid - Value doesn't change for the textbox

mehtapratik — Mon, 06 Jul 2009 06:13:22 GMT

I found that this is the bug of silverlight binding.. here is the details

http://silverlight.net/forums/t/35136.aspx

Re: Re: Re: Textbox inside datagrid - Value doesn't change for the textbox

mehtapratik — Mon, 06 Jul 2009 05:41:47 GMT

I am using Silverlight 3

Re: Re: Textbox inside datagrid - Value doesn't change for the textbox

mehtapratik — Fri, 03 Jul 2009 21:01:08 GMT

Thanks ken for your answer, but I think you misunderstood the question. my problem is user is entering correct data still the value doesn't change if the textbox has already value and if i remove that value and than change than it will work

Re: Textbox inside datagrid - Value doesn't change for the textbox

ken tucker — Fri, 03 Jul 2009 14:10:10 GMT

The simple answer here is the user entered bad data so your property is never updated.

You can handle the NotifyOnValidationError to catch when the user enters bad data

http://msdn.microsoft.com/en-us/library/system.windows.data.binding.notifyonvalidationerror%28VS.95%29.aspx

Textbox inside datagrid - Value doesn't change for the textbox

mehtapratik — Fri, 03 Jul 2009 07:01:30 GMT

Hi All,

My problem is when the textbox has value(e.g 2) and if I edit to a new value with appending 1 to existing value(e.g 21) than it won't work and if I remove the old value and type a new value(e.g 3) than it works.. any idea??

<data:DataGrid MinHeight="100" ItemsSource="{Binding POSProductsList,Source={StaticResource POSViewModel},Mode=TwoWay}" RowHeight="30" HorizontalAlignment="Stretch" Height="Auto" Width="Auto" Margin="10" HorizontalContentAlignment="Left" AutoGenerateColumns="false">
                        <data:DataGrid.Columns>

                            <data:DataGridTemplateColumn Header="Qty" Width="Auto"   MinWidth="80" MaxWidth="300" >
                                <data:DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock VerticalAlignment="Center" HorizontalAlignment="Left" Margin="5,0,0,0" Text="{Binding Quantity,Mode=TwoWay}"></TextBlock>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellTemplate>
                                <data:DataGridTemplateColumn.CellEditingTemplate>
                                    <DataTemplate>
                                        <TextBox LostFocus="txtQuantity_LostFocus" Text="{Binding Quantity,Mode=TwoWay}" Width="60" VerticalAlignment="Center" HorizontalAlignment="Center" x:Name="txtQuantity" >
                                        </TextBox>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellEditingTemplate>
                            </data:DataGridTemplateColumn>
                        </data:DataGrid.Columns>
                    </data:DataGrid>

Here my model class
public class POSViewModel : ViewModelBase
{

ObservableCollection<Model.POSProducts> _posproductslist;
        public ObservableCollection<Model.POSProducts> POSProductsList
        {
            get
            {
                return _posproductslist;
            }
            set
            {
                _posproductslist = value;
                this.RaisePropertyChanged("POSProductsList");
            }
}

Here my POSProducts class

public class POSProducts : ModelBase
{

           private int? _quantity;
        public int? Quantity
        {
            get
            {
                return _quantity;
            }
            set
            {
                try
                {
                    if (value < 0)
                    {
                        MessageBox.Show("Invalid Quantity");
                        return;
                    }
                    _quantity = value;
                    this.RaisePropertyChanged("Quantity");
                    this.RaisePropertyChanged("TotalCost");

                }
                catch
                {
                    MessageBox.Show("Invalid Quantity");
                }
            }
        }

}

Silverlight Controls and Silverlight Toolkit

Re: Re: Re: Re: Textbox inside datagrid - Value doesn't change for the textbox

Re: Re: Re: Textbox inside datagrid - Value doesn't change for the textbox

Re: Re: Textbox inside datagrid - Value doesn't change for the textbox

Re: Textbox inside datagrid - Value doesn't change for the textbox

Textbox inside datagrid - Value doesn't change for the textbox