View代码
1 <StackPanel>
2 <TextBlock Text="方法一"></TextBlock>
3 <TextBox Text="{Binding Value1}"></TextBox>
4 <TextBlock Text="方法二"></TextBlock>
5 <TextBox Text="{Binding Value2}"></TextBox>
6 <TextBlock Text="方法三"></TextBlock>
7 <TextBox Text="{Binding Value3}"></TextBox>
8 <TextBlock Text="方法四"></TextBlock>
9 <TextBox Text="{Binding Value4}"></TextBox>
10 <TextBlock Text="方法五"></TextBlock>
11 <TextBox Text="{Binding Value5}"></TextBox>
12 <Button Content="方法一" Command="{Binding AddCommand1}"></Button>
13 <Button Content="方法二" Command="{Binding AddCommand2}"></Button>
14 <Button Content="方法三" Command="{Binding AddCommand3}"></Button>
15 <Button Content="方法四" Command="{Binding AddCommand4}"></Button>
16 <Button Content="方法五" Command="{Binding AddCommand5}"></Button>
17 </StackPanel>
ViewModel代码
1 public class MainWindowViewModel : BindableBase
2 {
3 private string _title = "Prism命令学习";
4 public string Title
5 {
6 get
7 {
8 return _title;
9 }
10 set
11 {
12 SetProperty(ref _title, value);
13 }
14 }
15
16
17 public MainWindowViewModel()
18 {
19 //方法一
20 AddCommand1 = new DelegateCommand(Add1);
21
22 //方法二
23 AddCommand2 = new DelegateCommand(Add2);
24 //方法三
25 AddCommand3 = new DelegateCommand(Add3);
26 //方法四
27 AddCommand4 = new DelegateCommand(Add4);
28 //方法五：布尔类型,可以使控件不能使用变灰
29 AddCommand5 = new DelegateCommand(Add5).ObservesCanExecute(() => Value5);
30
31 }
32 private Random random = new Random();
33 //方法一
34 private string _value1 = "Prism命令学习";
35 public string Value1
36 {
37 get
38 {
39 return _value1;
40 }
41 set
42 {
43 SetProperty(ref _value1, value);
44 }
45 }
46 public DelegateCommand? AddCommand1
47 {
48 set; get;
49 }
50 private void Add1()
51 {
52 //写入需要执行的代码；
53
54 Value1 =random.Next().ToString();
55 MessageBox.Show(Value1);
56 }
57
58
59
60 //方法二
61 private string _value2 = "Prism命令学习";
62 public string Value2
63 {
64 get
65 {
66 return _value2;
67 }
68 set
69 {
70 SetProperty(ref _value2, value);
71 AddCommand2.RaiseCanExecuteChanged();
72 }
73 }
74 public DelegateCommand? AddCommand2
75 {
76 set; get;
77 }
78
79
80 private void Add2()
81 {
82 //写入需要执行的代码；
83
84 Value2= random.Next().ToString();
85 MessageBox.Show(Value2);
86 }
87
88
89 //方法三
90 private string _value3 = "Prism命令学习";
91 public string Value3
92 {
93 get
94 {
95 return _value3;
96 }
97 set
98 {
99 _value3 = value;
100 RaisePropertyChanged(nameof(Value3));
101 //也可以这样
102 RaisePropertyChanged();
103
104 }
105 }
106 public DelegateCommand? AddCommand3
107 {
108 set; get;
109 }
110
111
112 private void Add3()
113 {
114 //写入需要执行的代码；
115
116 Value3 = random.Next().ToString();
117 MessageBox.Show(Value3);
118 }
119 //方法四
120 private string _value4 = "Prism命令学习";
121 public string Value4
122 {
123 get
124 {
125 return _value4;
126 }
127 set
128 {
129 _value4 = value;
130 OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs(nameof(Value4)));
131
132 }
133 }
134 public DelegateCommand? AddCommand4
135 {
136 set; get;
137 }
138
139
140 private void Add4()
141 {
142 //写入需要执行的代码；
143
144 Value4 = random.Next().ToString();
145 MessageBox.Show(Value4);
146 }
147 //方法五
148 private bool _value5= false;
149 public bool Value5
150 {
151 get
152 {
153 return _value5;
154 }
155 set
156 {
157 _value5 = value;
158 SetProperty(ref _value5, value);
159
160
161 }
162 }
163 public DelegateCommand? AddCommand5
164 {
165 set; get;
166 }
167
168
169 private void Add5()
170 {
171 //写入需要执行的代码；
172
173 Value5=true;
174 MessageBox.Show(Value5.ToString());
175 }
176 }
