前言
一、新建数据模型
public class NotifyPropertyObject : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyName)
{
if(PropertyChanged != null)
{
PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
}
public class MyStudent: NotifyPropertyObject
{
private int _Num;
public int Num
{
get {
return _Num; }
set {
_Num = value;
OnPropertyChanged("Num");
}
}
private bool _IsTest;
public bool IsTest
{
get {
return _IsTest; }
set {
_IsTest = value;
OnPropertyChanged("IsTest");
}
}
private string _Name;
public string Name
{
get {
return _Name; }
set {
_Name = value;
OnPropertyChanged("Name");
}
}
private int _Age;
public int Age
{
get {
return _Age; }
set {
_Age = value;
OnPropertyChanged("Age");
}
}
private double _Score;
public double Score
{
get {
return _Score; }
set {
_Score = value;
OnPropertyChanged("Score");
}
}
private string _State;
public string State
{
get {
return _State; }
set {
_State = value;
OnPropertyChanged("State");
}
}
}
二、界面设计
<Window x:Class="WPFBindingDemo.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WPFBindingDemo"
mc:Ignorable="d"
Title="MainWindow" Height="650" Width="800">
<Grid>
<Grid.Resources>
<!--Create list of enumeration values-->
<ObjectDataProvider x:Key="strList"
ObjectType="{x:Type local:OSList}"
MethodName="GetList"/>
</Grid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition />
</Grid.RowDefinitions>
<Grid Grid.Column="1" Name="GridTable" Height="360" Background="Silver" Margin="2">
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"></ColumnDefinition>
<ColumnDefinition Width="150"></ColumnDefinition>
<ColumnDefinition Width="20"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Label Width="130" Height="25" Grid.Row="0" Grid.Column="0" Name="label1">TwoWay</Label>
<TextBox Width="150" Height="25" Grid.Row="0" Grid.Column="1" Name="textBox4" Text="{Binding ElementName=scrollBar1,Path=Value,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" />
<Label Width="130" Height="25" Grid.Row="1" Grid.Column="0" Name="label2">OneWay</Label>
<TextBox Width="150" Height="25" Grid.Row="1" Grid.Column="1" Name="textBox1" Text="{Binding ElementName=scrollBar1, Path=Value,Mode=OneWay}"/>
<Label Width="130" Height="25" Grid.Row="2" Grid.Column="0" Name="label3">OneWayToSource</Label>
<TextBox Width="150" Height="25" Grid.Row="2" Grid.Column="1" Name="textBox2" Text="{Binding ElementName=scrollBar1, Path=Value,Mode=OneWayToSource}" />
<Label Width="130" Height="25" Grid.Row="3" Grid.Column="0" Name="label4">OneTime</Label>
<TextBox Width="150" Height="25" Grid.Row="3" Grid.Column="1" Name="textBox3" Text="{Binding ElementName=scrollBar1, Path=Value,Mode=OneTime}"/>
<ScrollBar Value="30" Minimum="0" Grid.RowSpan="4" Grid.Row="0" Grid.Column="3" Maximum="100" Name="scrollBar1" Width="18" Height="{Binding ElementName=GridTable,Path=Height}" />
</Grid>
<Grid Margin="2" Background="GreenYellow" Grid.Row="1" Grid.Column="1">
<DataGrid x:Name="dataGridName" CanUserAddRows="False" AutoGenerateColumns="False" ItemsSource="{Binding MyStudentList,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" CanUserSortColumns="False">
<DataGrid.Columns>
<DataGridCheckBoxColumn Header="选择" Width="*" Binding="{Binding IsTest}"></DataGridCheckBoxColumn>
<DataGridTextColumn Header="Num" Width="*" Binding="{Binding Num}"></DataGridTextColumn>
<DataGridTextColumn Header="Name" Width="*" Binding="{Binding Name}"></DataGridTextColumn>
<DataGridTextColumn Header="Age" Width="*" Binding="{Binding Age}"></DataGridTextColumn>
<DataGridTextColumn Header="Score" Width="*" Binding="{Binding Score}"></DataGridTextColumn>
<DataGridComboBoxColumn Header="State" Width="*" ItemsSource="{Binding Source={StaticResource strList}}" SelectedItemBinding="{Binding State}" TextBinding="{Binding State,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}">
</DataGridComboBoxColumn>
<DataGridComboBoxColumn Header="State" Width="*" ItemsSource="{x:Static local:StrList.StateList}" SelectedItemBinding="{Binding State}" TextBinding="{Binding State,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}">
</DataGridComboBoxColumn>
<!--<DataGridTemplateColumn Header="Image" Width="SizeToCells" IsReadOnly="True">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Image Source="{Binding Image}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>-->
</DataGrid.Columns>
</DataGrid>
</Grid>
</Grid>
</Window>
三、数据初始化
public class OSList
{
string[] txList = new string[] {
"1", "2", "3" };
public string[] GetList()
{
return this.txList;
}
}
public class StrList
{
public static List<string> StateList {
get; set; }
static StrList()
{
StateList = new List<string>() {
"1", "2", "3","4" };
}
}
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public ViewModels.MainViewModel ViewModel {
get {
return App.MainViewModel; } }
public List<MyStudent> MyStudentList = new List<MyStudent>();
public MainWindow()
{
InitializeComponent();
this.DataContext = ViewModel;
this.Loaded += MainWindow_Loaded;
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
MyStudentList = new List<MyStudent>();
for (int i = 0; i < 5; i++)
{
MyStudent myStudent = new MyStudent();
myStudent.Num = i+1;
myStudent.IsTest = true;
myStudent.Name = "d" + i.ToString();
myStudent.Age = i + 12;
myStudent.Score = i + 78;
myStudent.State = "1";
MyStudentList.Add(myStudent);
}
dataGridName.ItemsSource = null;
dataGridName.ItemsSource = MyStudentList;
}
}
四、WPF DataGrid.DataGridComboBoxColumn 数据绑定
xaml代码：
<Grid>
<Grid.Resources>
<!--Create list of enumeration values-->
<ObjectDataProvider x:Key="strList"
ObjectType="{x:Type local:OSList}"
MethodName="GetList"/>
</Grid.Resources>
<DataGrid Name="DG1" ItemsSource="{Binding}" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridComboBoxColumn Header="下拉框测试"
SelectedItemBinding="{Binding sIdx}" ItemsSource="{Binding Source={StaticResource strList}}">
</DataGridComboBoxColumn>
</DataGrid.Columns>
</DataGrid>
</Grid>
逻辑代码：
namespace DataBingTest
{
/// <summary>
/// DB_DataGrid.xaml 的交互逻辑
/// </summary>
public partial class DB_DataGrid : Window
{
public DB_DataGrid()
{
InitializeComponent();
List<Info> infoList = new List<Info>();
Info info02 = new Info();
info02.sIdx = "1";
infoList.Add(info02);
info02 = new Info();
info02.sIdx = "2";
infoList.Add(info02);
info02 = new Info();
info02.sIdx = "3";
infoList.Add(info02);
DG1.DataContext = infoList;
}
}
public class Info
{
public string sIdx {
get; set; }
}
public class OSList
{
string[] txList = new string[] {
"1" ,"2","3"};
public string[] GetList()
{
return this.txList;
}
}
}