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我正在使用Xamarin相對佈局內部的元素上的表單和事件不會觸發。我試圖在後面的代碼中註冊它們,但仍然沒有開火。我有-250的約束,因爲按鈕顯示在屏幕的底部,這是我可以移動它們的唯一方法。 這是我的XAML:相對佈局中的元素事件不會觸發
<StackLayout Orientation="Vertical">
<RelativeLayout>
<Grid Margin="0,0,10,0"
x:Name="grid"
RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=10}"
RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=0}"
>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50*" />
<ColumnDefinition Width="50*" />
</Grid.ColumnDefinitions>
<Label Grid.Column="0"
Grid.Row="0"
Text="IP Address"
Margin="10,10,0,0"
HorizontalOptions="StartAndExpand"/>
<Entry Grid.Column="1"
Grid.Row="0"
x:Name="IPAddress"
Placeholder="IP"
WidthRequest="200"
Margin="0,0,10,0"
HorizontalOptions="EndAndExpand"/>
<Label Grid.Column="0"
Grid.Row="1"
Text="Port"
Margin="10,10,0,0"
MinimumWidthRequest="100"
HorizontalOptions="Start"/>
<Entry Grid.Column="1"
Grid.Row="1"
x:Name="Port"
Margin="0,0,10,0"
Placeholder="Port"
WidthRequest="200"
HorizontalOptions="End"/>
<Label Grid.Column="0"
Grid.Row="2"
Margin="10,10,0,0"
Text="User Name"
MinimumWidthRequest="100"
HorizontalOptions="Start"/>
<Entry Grid.Column="1"
Grid.Row="2"
x:Name="UserName"
Margin="0,0,10,0"
WidthRequest="200"
Placeholder="User Name"
HorizontalOptions="End"/>
<Label Grid.Column="0"
Grid.Row="3"
Margin="10,10,0,0"
Text="Password"
MinimumWidthRequest="100"
HorizontalOptions="Start"/>
<Entry Grid.Column="1"
Grid.Row="3"
x:Name="Password"
IsPassword="True"
Margin="0,0,10,0"
WidthRequest="200"
Placeholder="Password"
HorizontalOptions="End"/>
</Grid>
</RelativeLayout>
<RelativeLayout
IsEnabled="True">
<Button x:Name="SaveBtn"
IsEnabled="True"
WidthRequest="100"
RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=-250}"
RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=30}"
Clicked="SaveBtn_Clicked"
BorderColor="Gray"
Text="Save"></Button>
<Button x:Name="ClearFavorites"
IsEnabled="True"
WidthRequest="120"
RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=-250}"
RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=Width, Factor=0.5, Constant=20}"
Clicked="ClearFavorites_Clicked"
BorderColor="Gray"
Text="Clear Favorites"></Button>
</RelativeLayout>
</StackLayout>
顯示與SaveBtn_Clicked你的代碼中定義 –
您的約束正在按鈕進行畫面。當我將它們設置爲查看按鈕時,我同時獲得了兩個點擊事件 –
您使用的是什麼設備?我正在測試5和6,並且按鈕在屏幕上。 –