【发布时间】：2011-08-15 14:45:21
【问题描述】：
您好，我实际上是在创建 WPF DataGrid 自定义控件。 想要这个组合应该在组合框中显示性别以及当我将组合框保持在数据模板之外它的工作但在数据模板内部它不工作时发生了什么。请帮帮我？
<UserControl x:Class="Custom_DataGrid.Grid3.Grid3"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d" xmlns:sdk="http://schemas.microsoft.com/wpf/2008/toolkit"
d:DesignHeight="300" d:DesignWidth="300" >
<UserControl.Resources>
<DataTemplate x:Key="dueDateCellTemplate">
<TextBlock Text="{Binding DOB}" Margin="5,4,5,4"/>
</DataTemplate>
<DataTemplate x:Key="dueDateCellEditingTemplate">
<DatePicker SelectedDate="{Binding DOB, Mode=TwoWay}"/>
</DataTemplate>
<DataTemplate x:Key="genderCellTemplate">
<TextBlock Text="{Binding GENDER.Gender}" Margin="5,4,5,4"/>
</DataTemplate>
<DataTemplate x:Key="genderCellEditingTemplate">
<!--<ComboBox ItemsSource="{Binding Genders}" SelectedItem="{Binding Genders}" SelectedValue="{Binding Path=GENDER, ElementName=Id}" DisplayMemberPath="Id" SelectedValuePath="Gender"></ComboBox>-->
<ComboBox x:Name="c1" ItemsSource="{Binding Genders}" DisplayMemberPath="Id" Height="50" Width="100"></ComboBox>
<!--<TextBlock Text="{Binding Genders.Gender}" Foreground="Khaki"></TextBlock>-->
</DataTemplate>
</UserControl.Resources>
<Grid>
<DataGrid x:Name="datagrid3" AutoGeneratingColumn="datagrid3_AutoGeneratingColumn" ItemsSource="{Binding Employees}" Foreground="SteelBlue"></DataGrid>
</Grid>
</UserControl>
public enum Designation
{
Sales, Development, HR, BackOffice
}
public class Sex
{
private string id;
private string gen;
public string Id
{
get
{
return id;
}
set
{
id = value;
}
}
public string Gender
{
get
{
return gen;
}
set
{
gen = value;
}
}
}
public class DataSource
{
ObservableCollection<Employee> empList = new ObservableCollection<Employee>();
List<Sex> genders = new List<Sex>();
public DataSource()
{
empList.Add(new Employee() { ID = 1, NAME = "Neeraj", DOB = Convert.ToDateTime("12/03/1986"), EMAIL = "neeraj@mail.com", GENDER = new Sex() { Id = "M", Gender = "Male" }, PHONE = "9999999999", ACTIVE = false, DESIGNATION = Designation.Development });
empList.Add(new Employee() { ID = 2, NAME = "Mayank", DOB = Convert.ToDateTime("01/01/1986"), EMAIL = "mayank@mail.com", GENDER = new Sex() { Id = "M", Gender = "Male" }, PHONE = "9999999999", ACTIVE = true, DESIGNATION = Designation.BackOffice });
empList.Add(new Employee() { ID = 1, NAME = "Neeraj", DOB = Convert.ToDateTime("12/03/1986"), EMAIL = "neeraj@mail.com", GENDER = new Sex() { Id = "M", Gender = "Male" }, PHONE = "9999999999", ACTIVE = false, DESIGNATION = Designation.Development });
empList.Add(new Employee() { ID = 2, NAME = "Mayank", DOB = Convert.ToDateTime("01/01/1986"), EMAIL = "mayank@mail.com", GENDER = new Sex() { Id = "M", Gender = "Male" }, PHONE = "9999999999", ACTIVE = true, DESIGNATION = Designation.BackOffice });
empList.Add(new Employee() { ID = 1, NAME = "Neeraj", DOB = Convert.ToDateTime("12/03/1986"), EMAIL = "neeraj@mail.com", GENDER = new Sex() { Id = "M", Gender = "Male" }, PHONE = "9999999999", ACTIVE = false, DESIGNATION = Designation.Development });
empList.Add(new Employee() { ID = 2, NAME = "Mayank", DOB = Convert.ToDateTime("01/01/1986"), EMAIL = "mayank@mail.com", GENDER = new Sex() { Id = "M", Gender = "Male" }, PHONE = "9999999999", ACTIVE = true, DESIGNATION = Designation.BackOffice });
genders.Add(new Sex() { Id = "M", Gender = "Male" });
genders.Add(new Sex() { Id = "F", Gender = "Female" });
}
public ObservableCollection<Employee> Employees
{
get
{
return empList;
}
set
{
empList = value;
}
}
public List<Sex> Genders
{
get
{
return genders;
}
set
{
genders = value;
}
}
}
xaml.cs 文件的编码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace Custom_DataGrid.Grid3
{
/// <summary>
/// Interaction logic for Grid3.xaml
/// </summary>
public partial class Grid3 : UserControl
{
public Grid3()
{
InitializeComponent();
this.DataContext = new DataSource();
}
private void datagrid3_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
if (e.PropertyName.ToLower().ToString().Equals("id"))
{
e.Column.Header = "Employee Id";
}
else if (e.PropertyName.ToLower().Equals("name"))
{
e.Column.Header = "Employee Name";
}
else if (e.PropertyName.ToLower().Equals("dob"))
{
e.Column.Header = "Employee DOB";
if (e.PropertyType == typeof(DateTime))
{
DataGridTemplateColumn templateColumn = new DataGridTemplateColumn();
templateColumn.Header = "Employee DOB";
templateColumn.CellTemplate = (DataTemplate)Resources["dueDateCellTemplate"];
templateColumn.CellEditingTemplate = (DataTemplate)Resources["dueDateCellEditingTemplate"];
templateColumn.SortMemberPath = "DueDate";
e.Column = templateColumn;
}
}
else if (e.PropertyName.ToLower().Equals("phone"))
{
e.Column.Header = "Employee Phone";
e.Cancel = true;
}
else if (e.PropertyName.ToLower().Equals("email"))
{
e.Column.Header = "Employee Email";
}
else if (e.PropertyName.ToLower().Equals("gender"))
{
e.Column.Header = "Employee Gender";
DataGridTemplateColumn templateColumn = new DataGridTemplateColumn();
templateColumn.Header = "Employee Gender";
templateColumn.CellTemplate = (DataTemplate)Resources["genderCellTemplate"];
templateColumn.CellEditingTemplate = (DataTemplate)Resources["genderCellEditingTemplate"];
e.Column = templateColumn;
}
else if (e.PropertyName.ToLower().Equals("active"))
{
e.Column.Header = "Employee Active/InActive";
}
else if (e.PropertyName.ToLower().Equals("designation"))
{
e.Column.Header = "Employee Designation";
}
}
}
}
所以我正在尝试使用 celleditingtemplate 中的 combobxo 创建模板列，一切正常，但在 datatemplate 内部却无法正常工作。 请帮我？检查我评论过的文本框工作正常...
【问题讨论】：