WPF日积月累之DataGrid样式以及操作数据模板中的控件

  1 "Test.MainWindow"
  2         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  3         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  4         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
  5         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
  6         xmlns:local="clr-namespace:Test"
  7         mc:Ignorable="d"
  8         Title="MainWindow" Height="450" Width="800">
  9      10         "text2ImageConverter"> 11      12     "10">
 13         "3 0 3 0" Name="dataGridTestCase" ItemsSource="{Binding CaseCollection}" BorderThickness="0"
 14                               AutoGenerateColumns="False"  CanUserAddRows = "False" SelectedIndex="{Binding SelIndex,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Grid.Row="1" RowHeaderWidth="0">
 15              16                 
 31              32              33                 
 47              48 
 49              50                 
 66              67              68                 
 81              82 
 83              84                 ""  MinWidth="8" Width="8" MaxWidth="8">
 85                      86                          87                             "lb" Margin="-1">
 88                                  89                                     "Resource/dgBg.png">
 90 
 91                                      92                                  93                             
 94                          95                      96                  97                 
 98                 "用例描述" MinWidth="373" >
 99                     100                         101                             "{Binding Description}"  ToolTip="{Binding Description}">
102                         103                     104                 105 
106                 "结果" Width="40">
107                     108                         109                             "{Binding TestResult, Converter={StaticResource text2ImageConverter},ConverterParameter=0}" Width="20" Height="20">110                         111                     112                 113                 "操作" Width="50" >
114                     115                         116                             "Horizontal" HorizontalAlignment="Center">
117                                 "查看" Name="btnDetail" Width="auto" Margin="1 0 5 0" >
118                                     119                                         
139                                     140                                 
141                             142                         143                     144                 145             146 
147         148     149 

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Collections.ObjectModel;
  4 using System.ComponentModel;
  5 using System.Globalization;
  6 using System.Linq;
  7 using System.Text;
  8 using System.Windows;
  9 using System.Windows.Controls;
 10 using System.Windows.Data;
 11 using System.Windows.Documents;
 12 using System.Windows.Input;
 13 using System.Windows.Media;
 14 using System.Windows.Media.Imaging;
 15 using System.Windows.Navigation;
 16 using System.Windows.Shapes;
 17 
 18 namespace Test
 19 {
 20 
 21     /// 

 22     /// MainWindow.xaml 的交互逻辑
 23     /// 
 24     public partial class MainWindow : Window, INotifyPropertyChanged
 25     {
 26         #region INotifyPropertyChanged interface
 27         public event PropertyChangedEventHandler PropertyChanged;
 28         public virtual void OnPropertyChanged(string propertyName)
 29         {
 30             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
 31         }
 32         #endregion
 33         public ObservableCollection CaseCollection { get; set; }
 34         private int preSelIndex = 0;
 35         private int selIndex =  -1;
 36         public int SelIndex
 37         {
 38             get
 39             {
 40                 return selIndex;
 41             }
 42             set
 43             {
 44                 if(value != selIndex)
 45                 {
 46                     selIndex = value;
 47 
 48                     DataGridRow preRow = GetRow(dataGridTestCase, preSelIndex);
 49                     Label preLb = FindVisualChildByName(preRow, "lb");
 50                     preLb.Background = new SolidColorBrush(Colors.Transparent);
 51                     preSelIndex = selIndex;
 52 
 53                
 54 
 55                     DataGridRow row = GetRow(dataGridTestCase, selIndex);
 56                     Label lb = FindVisualChildByName(row, "lb");
 57                     lb.Background = new SolidColorBrush(Colors.Orange);
 58                     OnPropertyChanged(nameof(SelIndex));
 59                 }
 60                
 61             }
 62         }
 63         public MainWindow()
 64         {
 65             InitializeComponent();
 66             Init();
 67         }
 68         private void Init()
 69         {
 70             this.DataContext = this;
 71             CaseCollection = new ObservableCollection();
 72             CaseCollection.Add(new Case("描述1", "成功"));
 73             CaseCollection.Add(new Case("描述2", "成功"));
 74             CaseCollection.Add(new Case("描述3", "失败"));
 75             CaseCollection.Add(new Case("描述3", "失败"));
 76         }
 77         public DataGridRow GetRow(DataGrid datagrid, int columnIndex)
 78         {
 79             DataGridRow row = (DataGridRow)datagrid.ItemContainerGenerator.ContainerFromIndex(columnIndex);
 80             if (row == null)
 81             {
 82                 datagrid.UpdateLayout();
 83                 datagrid.ScrollIntoView(datagrid.Items[columnIndex]);
 84                 row = (DataGridRow)datagrid.ItemContainerGenerator.ContainerFromIndex(columnIndex);
 85             }
 86             return row;
 87         }
 88         public T FindVisualChildByName(Visual parent, string name) where T : Visual
 89         {
 90             if (parent != null)
 91             {
 92                 for (int i = 0; i )
 93                 {
 94                     var child = VisualTreeHelper.GetChild(parent, i) as Visual;
 95                     string controlName = child.GetValue(Control.NameProperty) as string;
 96                     if (controlName == name)
 97                     {
 98                         return child as T;
 99                     }
100                     else
101                     {
102                         T result = FindVisualChildByName(child, name);
103                         if (result != null)
104                             return result;
105                     }
106                 }
107             }
108             return null;
109         }
110     }
111 
112     public class Case
113     {
114         public string Description { get; set; }
115         public string TestResult { get; set; }
116         public Case()
117         {
118 
119         }
120         public Case(string description, string testResult)
121         {
122             this.Description = description;
123             this.TestResult = testResult;
124         }
125     }
126 
127     public class Text2ImageConverter : IValueConverter
128     {
129         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
130         {
131             if (value == null)
132                 return null;
133 
134             string p = value.ToString();
135             if (p == "成功")
136             {
137                 if (parameter.ToString() == "1")
138                 {
139                     return new BitmapImage(new Uri("../Resource/Success.png", UriKind.RelativeOrAbsolute));
140                 }
141                 else
142                 {
143                     return new BitmapImage(new Uri("Resource/Success.png", UriKind.RelativeOrAbsolute));
144                 }
145 
146             }
147             else if (p == "失败")
148             {
149                 if (parameter.ToString() == "1")
150                 {
151                     return new BitmapImage(new Uri("../Resource/Fail.png", UriKind.RelativeOrAbsolute));
152                 }
153                 else
154                 {
155                     return new BitmapImage(new Uri("Resource/Fail.png", UriKind.RelativeOrAbsolute));
156                 }
157 
158             }
159             else
160             {
161                 return null;
162             }
163 
164         }
165 
166         public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
167         {
168             return null;
169         }
170     }
171 }