回答編集履歴
1
バインドできてなかったので訂正
answer
CHANGED
|
@@ -9,8 +9,11 @@
|
|
|
9
9
|
xmlns:local="clr-namespace:WpfApplication2"
|
|
10
10
|
mc:Ignorable="d"
|
|
11
11
|
Title="MainWindow" Height="350" Width="525">
|
|
12
|
+
<Window.DataContext>
|
|
13
|
+
<local:MainWindowViewModel />
|
|
14
|
+
</Window.DataContext>
|
|
12
15
|
<Grid>
|
|
13
|
-
<local:UserControl1 prop="
|
|
16
|
+
<local:UserControl1 prop="{Binding num}" />
|
|
14
17
|
</Grid>
|
|
15
18
|
</Window>
|
|
16
19
|
```
|
|
@@ -49,21 +52,26 @@
|
|
|
49
52
|
}
|
|
50
53
|
```
|
|
51
54
|
```C#
|
|
52
|
-
|
|
55
|
+
public class MainWindowViewModel : INotifyPropertyChanged
|
|
53
|
-
|
|
56
|
+
{
|
|
54
|
-
|
|
57
|
+
private int _num;
|
|
55
|
-
|
|
58
|
+
public int num
|
|
56
|
-
|
|
59
|
+
{
|
|
57
|
-
|
|
60
|
+
get
|
|
58
|
-
|
|
61
|
+
{
|
|
59
|
-
|
|
62
|
+
return _num;
|
|
60
|
-
|
|
63
|
+
}
|
|
61
|
-
|
|
64
|
+
set
|
|
62
|
-
|
|
65
|
+
{
|
|
63
|
-
|
|
66
|
+
_num = value;
|
|
64
|
-
|
|
67
|
+
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("num"));
|
|
65
|
-
|
|
68
|
+
}
|
|
66
|
-
|
|
69
|
+
}
|
|
67
|
-
|
|
70
|
+
public event PropertyChangedEventHandler PropertyChanged;
|
|
71
|
+
|
|
72
|
+
public MainWindowViewModel()
|
|
73
|
+
{
|
|
74
|
+
num = 10;
|
|
68
|
-
|
|
75
|
+
}
|
|
76
|
+
}
|
|
69
77
|
```
|