Question

我有一个带有两列的telerik rad网格，1。isconstraint，2。数量

isconstraint是一个散布真或假的bool。数量是int

我的要求是，如果isconstraint为false，则将数量列中的0转换为图像或颜色画笔。

我尝试使用IvalueConverter。我试图将Isconstraint作为转换器参数传递。在运行时，它是成功的，但没有加载页面。请有人帮我解决这个问题。非常感谢你。我的代码看起来像这样。

 <telerik:GridViewDataColumn DataMemberBinding="{Binding LastQtyAvail}"                                                                                
                                                Width="130"                                             
                                                IsReadOnly="True" TextAlignment="Right" HeaderTextAlignment="Center">
                                                <telerik:GridViewDataColumn.CellTemplate>
                                                            <DataTemplate>
                                                        <StackPanel Orientation="Horizontal">
                                                            <Image x:Name="img" Visibility="Visible" Source="{Binding LastQtyAvail,Converter={StaticResource QuantityToImageConverter},ConverterParameter={Binding IsConstraint}}" Width="100" Height="100"/>
                                                            <TextBlock Text="{Binding LastQtyAvail}">
                                                            </TextBlock>
                                                        </StackPanel>
                                                            <!--<Border BorderThickness="1"
                                                                        CornerRadius="5"
                                                                        VerticalAlignment="Top"
                                                                        BorderBrush="Black"
                                                                        Margin="0"
                                                                        Background="{Binding LastQtyAvail, 
                                                                        Converter={StaticResource QuantityToImageConverter},ConverterParameter={Binding IsConstraint}}">                                                                

                                                                <Image x:Name="img" Visibility="Visible" Source="{Binding LastQtyAvail,Converter={StaticResource QuantityToImageConverter},ConverterParameter={Binding IsConstraint}}" Width="100" Height="100"/>
                                                            <TextBlock Text="{Binding LastQtyAvail}">
                                                            </TextBlock>
                                                        </Border>-->

                                                    </DataTemplate>
                                                </telerik:GridViewDataColumn.CellTemplate>

                                            </telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding IsConstraint, Mode=TwoWay}" HeaderTextAlignment="Center"                                                                                
                                                IsGroupable="False" IsVisible="{Binding IsColumnVisibleToCustomer, Source={StaticResource PFOViewModel}}"
                                                IsReadOnly="{Binding CanExecuteProductUpdateConstrain, Converter={StaticResource BooleanNotConverter}, Mode=OneWay}"
                                                Background="#77ADD8E6"                                                                                
                                                Width="74" />

valueconverter cs文件是

public class QuantityToImageConverter : IValueConverter
    {

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            //string path = string.Empty;
            //int result = (int)value;

            //string falsePath = "/Brightstar.VSO;component/Assets/DataGrid/False.png";

            //if (parameter == null)
            //{
            //    //int imagePaths = Convert.parameter.ToString().Split('|');
            //    //if (imagePaths.Length == 2)
            //    //{
            //    //    truePath = imagePaths[0];
            //    //    falsePath = imagePaths[1];
            //    //}
            //}

            //if (parameter != null)
            //{
            // // int imagePaths = Convert.parameter.ToString().Split('|');
            //    int imagePaths = Convert.Parameter.Tostring().Split('1');
            //    if (imagePaths.Length == 2)
            //    {

            //        falsePath = imagePaths[1];
            //    }
            //}


            ////if (result==0 && )
            ////{

            ////}
            ////else
            ////{
            ////    path = falsePath;
            ////}



            Int32 id = System.Convert.ToInt32(value);

            LinearGradientBrush brush = new LinearGradientBrush();
            brush.StartPoint = new Point(0, 1);
            brush.EndPoint = new Point(0, 0);
            brush.GradientStops.Add(new GradientStop()
            {
                Color = Colors.White,
                Offset = 0
            });
            brush.GradientStops.Add(new GradientStop()
            {
                Color = Color.FromArgb(
                    200,
                    System.Convert.ToByte((id * 103) % 256),
                    System.Convert.ToByte((id * 157) % 256),
                    System.Convert.ToByte((id * 233) % 256)
                ),
                Offset = 1
            });

            return brush;


            //ImageSourceConverter conv = new ImageSourceConverter();
            //return conv.ConvertFromString(falsePath);
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return 0;
        }
    }

Answer 1

我按照以下链接

解决了这个问题

http://www.scottlogic.co.uk/blog/colin/2009/06/silverlight-multibindings-how-to-attached-mutiple-bindings-to-a-single-property/

它对我有用......

将0转换为图像

1 个答案: