Question

我设法创建了一个在同一列上包含不同类型控件的数据网格。但是，我无法在这些控件中获得用户输入。

项目

public class Item
{
    /// <summary>
    /// item name
    /// </summary>
    public string ParameterName { get; set; }

    /// <summary>
    /// Control type
    /// </summary>
    public ControlType ControlType { get; set; }

    /// <summary>
    /// New item value
    /// </summary>
    public object ParameterValue { get; set; }

    /// <summary>
    /// Current item value
    /// </summary>
    public string CurrentParameterValue { get; set; }
}

ControlType

public enum ControlType
{
    TextBox,
    ComboBox,
    CheckBox,
    TextBlock
}

数据网格

<DataGrid x:Name="dgridGeneral" ItemsSource="{Binding}" AutoGenerateColumns="False" CanUserAddRows="False" CanUserResizeColumns="False" SelectionUnit="FullRow">
     <DataGrid.Columns>
         <DataGridTemplateColumn Header="Name" Width="200">
             <DataGridTemplateColumn.CellTemplate>
                 <DataTemplate>
                     <TextBlock Text="{Binding ParameterName}" Style="{StaticResource TextHeader}" />
                 </DataTemplate>
             </DataGridTemplateColumn.CellTemplate>
         </DataGridTemplateColumn>
         <DataGridTemplateColumn Header="New Value" Width="200">
             <DataGridTemplateColumn.CellTemplate>
                 <DataTemplate>
                     <ContentControl Content="{Binding}">
                         <ContentControl.Style>
                             <Style TargetType="ContentControl">
                                 <Style.Triggers>
                                     <DataTrigger Binding="{Binding ControlType}" Value="CheckBox">
                                         <Setter Property="ContentTemplate">
                                             <Setter.Value>
                                                 <DataTemplate>
                                                     <CheckBox IsChecked="{Binding ParameterValue, Mode=TwoWay}"/>
                                                 </DataTemplate>
                                             </Setter.Value>
                                         </Setter>
                                        </DataTrigger>
                                        <DataTrigger Binding="{Binding ControlType}" Value="ComboBox">
                                            <Setter Property="ContentTemplate">
                                                <Setter.Value>
                                                    <DataTemplate>
                                                        <ComboBox ItemsSource="{Binding ComboBoxControlItemSource}" SelectedIndex="{Binding ParameterValue, Mode=TwoWay}" />
                                                    </DataTemplate>
                                                </Setter.Value>
                                            </Setter>
                                        </DataTrigger>
                                        <DataTrigger Binding="{Binding ControlType}" Value="TextBlock">
                                            <Setter Property="ContentTemplate">
                                                            <Setter.Value>
                                                <DataTemplate>
                                                    <TextBlock Text="{Binding ParameterValue}"/>
                                                </DataTemplate>
                                            </Setter.Value>
                                        </Setter>
                                    </DataTrigger>
                                    <DataTrigger Binding="{Binding ControlType}" Value="TextBox">
                                        <Setter Property="ContentTemplate">
                                            <Setter.Value>
                                                <DataTemplate>
                                                    <TextBox Text="{Binding ParameterValue, Mode=TwoWay}" />
                                                </DataTemplate>
                                            </Setter.Value>
                                        </Setter>
                                    </DataTrigger>
                                </Style.Triggers>
                            </Style>
                        </ContentControl.Style>
                    </ContentControl>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
        <DataGridTemplateColumn Header="Current Value" Width="*">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding CurrentParameterValue}" Style="{StaticResource TextBodyNormal}" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

我还尝试在Item类中为不同的控件类型添加其他属性。例如，TextBox的“Text”属性，CheckBox的“IsCheck”属性，ComboBox的SelectedIndex属性。但是，我仍然无法获得用户输入。

有关如何获取用户输入的任何想法？感谢

Answer 1

如果您将绑定的ParameterValue属性设置为Item，则会设置UpdateSourceTrigger的{{1}}属性：

PropertyChanged

Datagrid对同一列进行不同的控制并获取其值

1 个答案: