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我认为这应该很容易,但我无法将 itemssource 值绑定到作为分层 XamDataGrid 一部分的组合框列上。我的 datacontext 在包含数据网格的 GRID 上设置为一个集合。

层次结构高层如下所示:

表(根)--> 字段(此处定义的组合框集合)--> 映射(此处的组合框列)

每个字段都可以有自己的映射,映射上的目标值对于每个字段都是唯一的。

在后面的代码中,我建立了我的集合并将 DataContext 设置为 Grid: DataGridTransformations.DataContext = MapColl;

这是一个可以帮助我理解的屏幕:

问题示例

这是 XAML:

<Grid x:Name="GridTransformations" Background="#FFFAFADB" DataContext="MSC_Conversion_Tools.Models.MapSourceColl">
                <Custom:XamDataGrid x:Name="DataGridTransformations" DataSource="{Binding TableEntities}" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Height="600" Width="966" Loaded="DataGridTransformations_Loaded">
                    <Custom:XamDataGrid.FieldLayouts>
                        <Custom:FieldLayout>
                            <Custom:FieldLayout.Fields>
                                <Custom:Field Name="TableEntities"/>
                            </Custom:FieldLayout.Fields>
                        </Custom:FieldLayout>

                        <Custom:FieldLayout Key="TableEntities">
                            <Custom:FieldLayout.Fields>
                                <Custom:Field Name="EntityName" Label="Table Name"></Custom:Field>
                                <Custom:Field Name="Fields"/>
                            </Custom:FieldLayout.Fields>



                        </Custom:FieldLayout>

                        <Custom:FieldLayout Key="Fields">
                            <Custom:FieldLayout.Fields>
                                <Custom:Field Name="FieldName" Label="Field"></Custom:Field>
                                <Custom:Field Name="DefaultValue" Label="Default Value"></Custom:Field>
                                <Custom:Field Name="DefaultOnlyNonNullValues" Label="Default: Include Null Fields?" Width="300"></Custom:Field>
                                <Custom:Field Name="FunctionWrapName" Label="Function"></Custom:Field>
                                <Custom:Field Name="Mappings"></Custom:Field>
                            </Custom:FieldLayout.Fields>
                        </Custom:FieldLayout>

                        <Custom:FieldLayout Key="Mappings">
                            <Custom:FieldLayout.Fields>
                                <Custom:Field Name="SourceValue" Label="Source Vaue"></Custom:Field>
                                <Custom:Field Name="TargetValue" Label="Target Value" >
                                    <Custom:Field.Settings>
                                        <Custom:FieldSettings EditorType="{x:Type igEditors:XamComboEditor}" AllowEdit="True">
                                            <Custom:FieldSettings.EditorStyle>
                                                <Style TargetType="{x:Type igEditors:XamComboEditor}">
                                                    <Setter Property="ItemsSource" Value="{Binding Path=DataContext.MappingTargetCmbValues, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Custom:XamDataGrid}}}" />
                                                    <Setter Property="DisplayMemberPath" Value="Name"/>
                                                    <Setter Property="ValuePath" Value="Id" />
                                                </Style>
                                            </Custom:FieldSettings.EditorStyle>

                                        </Custom:FieldSettings>
                                    </Custom:Field.Settings>
                                </Custom:Field>

                            </Custom:FieldLayout.Fields>
                        </Custom:FieldLayout>


                    </Custom:XamDataGrid.FieldLayouts>
                </Custom:XamDataGrid>
            </Grid>

这也是我的 Field 类,其中包含我的组合框值集合 MappingTargetCmbValues(我可能也没有这样做):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections.ObjectModel;

namespace MSC_Conversion_Tools.Models
{
    class Field
    {
        public Field(string Name)
        {
            FieldName = Name;
            DefaultOnlyNonNullValues = false;
        }
        public string FieldName { get; set; }
        public string DefaultValue { get; set; }
        public Boolean DefaultOnlyNonNullValues { get; set; }
        public string FunctionWrapName { get; set; }
        public ObservableCollection<Mapping> Mappings { get; set; }
        public ObservableCollection<MappingTargetCmbValue> MappingTargetCmbValues;
    }
}

任何帮助将不胜感激。谢谢 !

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1 回答 1

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我可能弄错了,但看起来MappingTargetCmbValues是一个字段而不是一个属性。顺便说一句,使用 Self 的 RelativeSource 绑定到 Host.DataContext.MappingTargetCmbValues 可能比 FindAncestor 绑定更好。

于 2013-01-27T03:31:59.223 回答