Question

<Window x:Class="ActivityLogs.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:ActivityLogs="clr-namespace:ActivityLogs"
        Title="MainWindow" Height="350" Width="900">
    <Window.Resources>
        <ActivityLogs:RightMarginSetter x:Key="RightMarginSetter"/>
    </Window.Resources>
    <Grid>
        <DataGrid AutoGenerateColumns="False" Name="m_gridControl">
            <DataGrid.Columns>
                <DataGridTextColumn Header="Message" x:Name="messagetype" Width="10*"/>
                <DataGridTextColumn x:Name="columnCategory" Width="50*">
                    <DataGridTextColumn.Header>

                        <Grid Width="{Binding ElementName=columnCategory, Path=ActualWidth, Converter={StaticResource RightMarginSetter}, ConverterParameter=20}">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="90*"></ColumnDefinition>
                                <ColumnDefinition Width="30"></ColumnDefinition>
                            </Grid.ColumnDefinitions>
                            <TextBlock Grid.Column="0">Category</TextBlock>
                            <ComboBox Grid.Column="1" Background="{Binding ElementName=columnCategory, Path=Header.BorderBrush.Color.ColorContext}"></ComboBox>
                        </Grid>

                    </DataGridTextColumn.Header>
                </DataGridTextColumn>
                <DataGridTextColumn Header="Recorded Time" x:Name="columnDateTime" Width="10*"/>
                <DataGridTextColumn Header="Error Code" x:Name="columnErrorCode" Width="10*"/>
                <DataGridTextColumn Header="Tool" x:Name="columnToolId" Width="10*"/>
                <DataGridTextColumn Header="User" x:Name="columnUserId" Width="10*"/>
            </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Window>

嗨，上面一个是我的XAML表达式的XAML代码。我只是用C＃（Code behind）完全重写了它。

我无法创建静态资源并将其与Width属性绑定，就像我在XAML中所做的那样。这里我的静态资源是RightMarginSetter，这是我创建的一个继承IValueConverter的类

在重写C＃

中的部分时，我遇到了问题

<Grid Width="{Binding ElementName=columnCategory, Path=ActualWidth, Converter={StaticResource RightMarginSetter}, ConverterParameter=20}">

你能救我吗？谢谢。

Answer 1

您可以尝试这种方式将转换器添加到当前Window的Resources：

//create converter instance
var converterInstance = new RightMarginSetter();
//add the converter to window resources
this.Resources.Add("RightMarginSetter", converterInstance);

然后你可以在绑定中使用该资源：

//set up binding to use converter in resources
Binding myBinding = new Binding("ActualWidth")
                        {
                            ElementName = "columnCategory",
                            Converter = (RightMarginSetter)this.Resources["RightMarginSetter"],
                            ConverterParameter = 20
                        };
myGrid.SetBinding(Grid.WidthProperty, myBinding);

在代码隐藏和绑定中创建WPF资源

1 个答案: