C# 如何在XCeed DataGridControl（WPF）中添加ComboBox列

我试图在

XCeeds DataGridControl

中添加一个组合框列。设法制作了一个

CellEditor

，它为绑定字段设置了适当的值，但是

CellContent

模板存在问题

Xaml：

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition></RowDefinition>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition></ColumnDefinition>
    </Grid.ColumnDefinitions>

    <xcdg:DataGridControl ItemsSource="{Binding Address}" >
        <xcdg:DataGridControl.Columns>
            <xcdg:Column x:Name="clmAdd" FieldName="HouseNumberAdd"/>
            <xcdg:Column x:Name="clmCity" FieldName="City"/>
            <xcdg:Column x:Name="clmCountry" FieldName="CountryID">
                <xcdg:Column.CellEditor>
                    <xcdg:CellEditor>
                        <xcdg:CellEditor.EditTemplate>
                            <DataTemplate>
                                <ComboBox SelectedValuePath="CountryID"
                                          DisplayMemberPath="Name"
                                          ItemsSource="{Binding Path=DataContext.Country, RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
                                          SelectedValue="{xcdg:CellEditorBinding}" IsEditable="True" Foreground="Black" IsSynchronizedWithCurrentItem="True" />
                            </DataTemplate>
                        </xcdg:CellEditor.EditTemplate>
                    </xcdg:CellEditor>
                </xcdg:Column.CellEditor>
            </xcdg:Column>
        </xcdg:DataGridControl.Columns>
    </xcdg:DataGridControl>
</Grid>

public partial class MainWindow : Window
{
    ViewMode viewMode;
    public MainWindow()
    {
        InitializeComponent();

        viewMode = new ViewMode();
        this.DataContext = viewMode;
    }

    private void Window_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        DataTable source = viewMode.Address;
    }
}

public class ViewMode
{
    public DataTable Address { get; set; }
    public DataTable Country { get; set; }

    public ViewMode()
    {
        Address = new DataTable();
        Address.Columns.Add("HouseNumberAdd", typeof(string));
        Address.Columns.Add("City", typeof(string));
        Address.Columns.Add("CountryID", typeof(int));

        Address.Rows.Add("Ivlivensko 10-KV 1234", "Krakov", 1);
        Address.Rows.Add("Astrakhanski 10-KV 1234", "Kharkiv", 2);
        Address.Rows.Add("Tverskii 10-KV 1234", "Moskva", 3);
        Address.Rows.Add("Klement 10-KV 1234", "Warsav", 1);

        Country = new DataTable();
        Country.Columns.Add("Name", typeof(string));
        Country.Columns.Add("CountryID", typeof(int));

        Country.Rows.Add("Poland", 1);
        Country.Rows.Add("Ukrain", 2);
        Country.Rows.Add("Russland", 3);
    }
}

编辑：：

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition></RowDefinition>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition></ColumnDefinition>
    </Grid.ColumnDefinitions>

    <xcdg:DataGridControl ItemsSource="{Binding Address}" >
        <xcdg:DataGridControl.Columns>
            <xcdg:Column x:Name="clmAdd" FieldName="HouseNumberAdd"/>
            <xcdg:Column x:Name="clmCity" FieldName="City"/>
            <xcdg:Column x:Name="clmCountry" FieldName="CountryID">
                <xcdg:Column.CellEditor>
                    <xcdg:CellEditor>
                        <xcdg:CellEditor.EditTemplate>
                            <DataTemplate>
                                <ComboBox SelectedValuePath="CountryID"
                                          DisplayMemberPath="Name"
                                          ItemsSource="{Binding Path=DataContext.Country, RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
                                          SelectedValue="{xcdg:CellEditorBinding}" IsEditable="True" Foreground="Black" IsSynchronizedWithCurrentItem="True" />
                            </DataTemplate>
                        </xcdg:CellEditor.EditTemplate>
                    </xcdg:CellEditor>
                </xcdg:Column.CellEditor>
            </xcdg:Column>
        </xcdg:DataGridControl.Columns>
    </xcdg:DataGridControl>
</Grid>

public partial class MainWindow : Window
{
    ViewMode viewMode;
    public MainWindow()
    {
        InitializeComponent();

        viewMode = new ViewMode();
        this.DataContext = viewMode;
    }

    private void Window_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        DataTable source = viewMode.Address;
    }
}

public class ViewMode
{
    public DataTable Address { get; set; }
    public DataTable Country { get; set; }

    public ViewMode()
    {
        Address = new DataTable();
        Address.Columns.Add("HouseNumberAdd", typeof(string));
        Address.Columns.Add("City", typeof(string));
        Address.Columns.Add("CountryID", typeof(int));

        Address.Rows.Add("Ivlivensko 10-KV 1234", "Krakov", 1);
        Address.Rows.Add("Astrakhanski 10-KV 1234", "Kharkiv", 2);
        Address.Rows.Add("Tverskii 10-KV 1234", "Moskva", 3);
        Address.Rows.Add("Klement 10-KV 1234", "Warsav", 1);

        Country = new DataTable();
        Country.Columns.Add("Name", typeof(string));
        Country.Columns.Add("CountryID", typeof(int));

        Country.Rows.Add("Poland", 1);
        Country.Rows.Add("Ukrain", 2);
        Country.Rows.Add("Russland", 3);
    }
}

我用ContentTemplate替换了CellEditor，但当我试图编辑网格中的数据时，源表保持不变。我怎样才能解决这个问题

 <Grid>
    <Grid.RowDefinitions>
        <RowDefinition></RowDefinition>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition></ColumnDefinition>
    </Grid.ColumnDefinitions>

    <xcdg:DataGridControl ItemsSource="{Binding Address}" >
        <xcdg:DataGridControl.Columns>
            <xcdg:Column x:Name="clmAdd" FieldName="HouseNumberAdd"/>
            <xcdg:Column x:Name="clmCity" FieldName="City"/>
            <xcdg:Column x:Name="clmCountry" FieldName="CountryID">
                <xcdg:Column.CellContentTemplate>
                    <DataTemplate x:Name="clmCountryTmp">
                        <ComboBox SelectedValuePath="CountryID"
                                DisplayMemberPath="Name"
                                ItemsSource="{Binding Path=DataContext.Country, RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
                                SelectedValue="{xcdg:CellEditorBinding}"/>
                    </DataTemplate>
                </xcdg:Column.CellContentTemplate>
            </xcdg:Column>
        </xcdg:DataGridControl.Columns>
    </xcdg:DataGridControl>
</Grid>

---

尝试删除

IsSynchronizedWithCurrentItem=“True”

在我的测试中，这样做可以防止文本值在进入编辑模式时出现在组合框中。我一删除它，文本就如预期的那样显示出来

---

如果要在不处于编辑模式时更改单元格的外观，可以为列指定自定义的

CellContentTemplate

。

此外，如果希望单元格以文本形式显示组合框的显示值，请将以下内容添加到列中

<xcdg:Column.CellContentTemplate>
    <DataTemplate>
        <TextBlock Text="{xcdg:CellEditorBinding Converter={StaticResource YourConverter}}" />
    </DataTemplate>
</xcdg:Column.CellContentTemplate>

---

其中“YourConverter”将所选的ValuePath值转换为组合框的DisplayMemberPath值。

不清楚您有什么问题。Thx。我已经用ContentTemplate替换了CellEditor，但是当我编辑它时，源数据没有改变。你能帮我解决吗？找到了解决方法，CellEditorDisplayConditions=“Always”thx@Diane-Xceed在本例中，我希望单元格在不处于编辑模式时在DisplayMemberPath中显示值。CellContentTemplate应该如何编写才能做到这一点？@SezMe您可以使用一个TextBlock，该TextBlock在其绑定中使用转换器来转换列的值（例如Id），并返回要显示的字符串值。@Diane Xceed。是的，这就是我最后要做的。效率太低了，必须有更好的办法。