将DataGridComboBoxColumn绑定到在类内部声明的枚举

时间:2019-07-14 08:38:16

标签: c# wpf datagrid datagridcomboboxcolumn

我有一个绑定到我的数据库的数据网格:Member Datagrid 我希望性别列是一个组合框,其选择的值来自数据库。性别是Member类中的一个枚举:

namespace Elysium.model
{ 
    class Member
    {
        public enum MemberType { Standard, Premium }
        public enum Status { Inactive, Active }
        public enum Gender { Male, Female } 

我尝试通过以下方式将其绑定,但是它给我一个错误,即在命名空间中未定义性别,或者在执行<x:Type TypeName="local.Member:Gender" ></x:Type>时不允许嵌套:

<ObjectDataProvider x:Key="genderEnum" MethodName="GetValues" ObjectType="{x:Type LocalValueEnumerator}">
        <ObjectDataProvider.MethodParameters>
            <x:Type TypeName="local:Gender" ></x:Type>
        </ObjectDataProvider.MethodParameters>
    </ObjectDataProvider>

ViewMembers.xaml:

<Grid DataContext="{StaticResource memberViewSource}">
    <DataGrid x:Name="memberDataGrid" AutoGenerateColumns="False" EnableRowVirtualization="True" ItemsSource="{Binding}" RowDetailsVisibilityMode="VisibleWhenSelected" Width="1100" Height="600">
        <DataGrid.Columns>
            <DataGridTextColumn x:Name="memberIDColumn" Binding="{Binding MemberID}" Header="Member ID" Width="SizeToHeader"/>
            <DataGridTextColumn x:Name="nameColumn" Binding="{Binding Name}" Header="Name" Width="SizeToHeader"/>
            <DataGridTextColumn x:Name="fatherNameColumn" Binding="{Binding FatherName}" Header="Father Name" Width="SizeToHeader"/>
            <DataGridComboBoxColumn x:Name="genderColumn" SelectedValueBinding="{Binding Value}" Header="Gender" Width="SizeToHeader"/>

ViewMembers.xaml.cs:

public partial class ViewMembers : Page
{
    DataTable memberTable = new DataTable();

    public ViewMembers()
    {
        InitializeComponent();
        MemberDatabase members = MemberDatabase.getApplicationDatabase();
        memberTable = members.getAllMembers();
        memberDataGrid.ItemsSource = memberTable.DefaultView;
    }

项目结构:

Project Architecture

1 个答案:

答案 0 :(得分:1)

ObjectType应该设置为System.Enum

<ObjectDataProvider x:Key="genderEnum" 
                    xmlns:sys="clr-namespace:System;assembly=mscorlib"
                    MethodName="GetValues" ObjectType="{x:Type sys:Enum}">
    <ObjectDataProvider.MethodParameters>
        <x:Type TypeName="local:Gender" />
    </ObjectDataProvider.MethodParameters>
</ObjectDataProvider>

用法:

<DataGridComboBoxColumn x:Name="genderColumn"
                        ItemsSource="{Binding Source={StaticResource genderEnum}}" ... />
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