如何将值传递给 UserControl (uwp)
How to pass a value to the UserControl (uwp)
如何将值传递给 UserControl (uwp)
<Pivot Title="Welcome" Name="View_P" SelectionChanged="Pivot_SelectionChanged" >
<PivotItem Header="Car" Name="v_1">
<local:View_Control />
</PivotItem>
<PivotItem Header="electronics">
<local:View_Control/>
</PivotItem>
</Pivot>
参见 PivotItem0 和 PivotItem0
<local:View_Control/>
下一个代码c#
private void Pivot_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if( View_P.SelectedIndex == 0)
{
View_Control.numbers=1
}
else if (View_P.SelectedIndex == 0)
{
View_Control.numbers = 2
}
}
下一个代码UserControl名称页面(View_Control)
public int numbers;
public View_Control()
{
ServiceErkaanClient dv = new ServiceErkaanClient();
this.InitializeComponent();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(numbers).Result;
}
必填
如果单击 Pivot SelectedIndex == 0 向 UserControl (View_Control) 发送一个参数 1 并刷新
首先,你应该将name设置为View_Control,你可以看到下面的代码。
<Pivot Title="Welcome" Name="View_P"
SelectionChanged="Pivot_SelectionChanged" >
<PivotItem Header="Car" Name="v_1">
<local:View_Control Name="v1"/>
</PivotItem>
<PivotItem Header="electronics">
<local:View_Control Name="v2"/>
</PivotItem>
</Pivot>
第二个是将字段编号更改为属性,您可以看到下面的代码。
private int _numbers;
public int Numbers
{
set
{
_numbers=value;
//when the numbers be changed
ServiceErkaanClient dv = new ServiceErkaanClient();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(numbers).Result;
}
get
{
return _numbers;
}
}
public View_Control()
{
ServiceErkaanClient dv = new ServiceErkaanClient();
this.InitializeComponent();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(Numbers).Result;
}
当您将号码设置为 1 时,它将调用 SP_All_SellAsync。
如果你想使用依赖属性,你可以试试下面的代码
public static readonly DependencyProperty NumbersProperty = DependencyProperty.Register(
"Numbers", typeof(int), typeof(View_Control), new PropertyMetadata(default(int), (s, e) =>
{
View_Control view = (View_Control) s;
int n = (int) e.NewValue;
ServiceErkaanClient dv = new ServiceErkaanClient();
view.MyGrid1.ItemsSource = dv.SP_All_SellAsync(n).Result;
}));
public int Numbers
{
get { return (int) GetValue(NumbersProperty); }
set { SetValue(NumbersProperty, value); }
}
public View_Control()
{
ServiceErkaanClient dv = new ServiceErkaanClient();
this.InitializeComponent();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(Numbers).Result;
}
欢迎与我交流,有什么问题欢迎交流
如何将值传递给 UserControl (uwp)
<Pivot Title="Welcome" Name="View_P" SelectionChanged="Pivot_SelectionChanged" >
<PivotItem Header="Car" Name="v_1">
<local:View_Control />
</PivotItem>
<PivotItem Header="electronics">
<local:View_Control/>
</PivotItem>
</Pivot>
参见 PivotItem0 和 PivotItem0
<local:View_Control/>
下一个代码c#
private void Pivot_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if( View_P.SelectedIndex == 0)
{
View_Control.numbers=1
}
else if (View_P.SelectedIndex == 0)
{
View_Control.numbers = 2
}
}
下一个代码UserControl名称页面(View_Control)
public int numbers;
public View_Control()
{
ServiceErkaanClient dv = new ServiceErkaanClient();
this.InitializeComponent();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(numbers).Result;
}
必填 如果单击 Pivot SelectedIndex == 0 向 UserControl (View_Control) 发送一个参数 1 并刷新
首先,你应该将name设置为View_Control,你可以看到下面的代码。
<Pivot Title="Welcome" Name="View_P"
SelectionChanged="Pivot_SelectionChanged" >
<PivotItem Header="Car" Name="v_1">
<local:View_Control Name="v1"/>
</PivotItem>
<PivotItem Header="electronics">
<local:View_Control Name="v2"/>
</PivotItem>
</Pivot>
第二个是将字段编号更改为属性,您可以看到下面的代码。
private int _numbers;
public int Numbers
{
set
{
_numbers=value;
//when the numbers be changed
ServiceErkaanClient dv = new ServiceErkaanClient();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(numbers).Result;
}
get
{
return _numbers;
}
}
public View_Control()
{
ServiceErkaanClient dv = new ServiceErkaanClient();
this.InitializeComponent();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(Numbers).Result;
}
当您将号码设置为 1 时,它将调用 SP_All_SellAsync。
如果你想使用依赖属性,你可以试试下面的代码
public static readonly DependencyProperty NumbersProperty = DependencyProperty.Register(
"Numbers", typeof(int), typeof(View_Control), new PropertyMetadata(default(int), (s, e) =>
{
View_Control view = (View_Control) s;
int n = (int) e.NewValue;
ServiceErkaanClient dv = new ServiceErkaanClient();
view.MyGrid1.ItemsSource = dv.SP_All_SellAsync(n).Result;
}));
public int Numbers
{
get { return (int) GetValue(NumbersProperty); }
set { SetValue(NumbersProperty, value); }
}
public View_Control()
{
ServiceErkaanClient dv = new ServiceErkaanClient();
this.InitializeComponent();
MyGrid1.ItemsSource = dv.SP_All_SellAsync(Numbers).Result;
}
欢迎与我交流,有什么问题欢迎交流