我有以下网格:
<!--MainGrid-->
<Grid Grid.Row="2" x:Name="maingrid_piccat">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
Aspect="AspectFit"
Grid.Column="1"
Source="btn_emptydummy.png" BackgroundColor="#00000000"/>
<Picker x:Name="picker_maincat_pickcate"
Grid.Column="1"
Title="Hauptkategorie"
FontFamily="arial"
BackgroundColor="#00000000"
TextColor="#272727"
HorizontalOptions="Center"
VerticalOptions="Center">
<Picker.Items>
<x:String>Cat 1</x:String>
<x:String>Cat 2</x:String>
<x:String>Cat 3</x:String>
<x:String>Cat 4</x:String>
</Picker.Items>
</Picker>
</Grid>
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
Aspect="AspectFit"
Grid.Column="1"
Source="btn_emptydummy.png" BackgroundColor="#00000000"/>
<Picker x:Name="picker_subcat1_pickcate"
Grid.Column="1"
Title="Unterkategorie 01"
FontFamily="arial"
BackgroundColor="#00000000"
TextColor="#272727"
HorizontalOptions="Center"
VerticalOptions="Center">
<Picker.Items>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
</Picker.Items>
</Picker>
</Grid>
<Grid Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
Aspect="AspectFit"
Grid.Column="1"
Source="btn_emptydummy.png" BackgroundColor="#00000000"/>
<Picker x:Name="picker_subcat2_pickcate"
Grid.Column="1"
FontFamily="arial"
Title="Unterkategorie 02"
BackgroundColor="#00000000"
TextColor="#272727"
HorizontalOptions="Center"
VerticalOptions="Center">
<Picker.Items>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
</Picker.Items>
</Picker>
</Grid>
<Grid Grid.Row="3">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
Aspect="AspectFit"
Grid.Column="1"
Source="btn_emptydummy.png" BackgroundColor="#00000000"/>
<Picker x:Name="picker_subcat3_pickcate"
Grid.Column="1"
FontFamily="arial"
BackgroundColor="#00000000"
TextColor="#272727"
Title="Unterkategorie 03"
HorizontalOptions="Center"
VerticalOptions="Center">
<Picker.Items>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
<x:String>Subcat yx</x:String>
</Picker.Items>
</Picker>
</Grid>
<Grid Grid.Row="4" x:Name="row4_piccat">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
x:Name="btn_dummy_piccat"
Aspect="AspectFit"
Grid.Column="1"
Source="btn_emptydummy.png" BackgroundColor="#00000000"/>
<Entry x:Name="entry_name_pickcat"
Grid.Column="1"
FontFamily="arial"
MaxLength="15"
Placeholder="Titel der Anzeige"
BackgroundColor="#00000000"
TextColor="#272727"
HorizontalOptions="Center"
VerticalOptions="Center">
</Entry>
</Grid>
<Grid Grid.Row="5" x:Name="row5_piccat">
<Grid.ColumnDefinitions >
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*" />
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
Aspect="AspectFit"
x:Name="btn_dummy_piccat2"
Grid.Column="1"
Source="btn_emptydummy.png" BackgroundColor="#00000000"/>
<Entry x:Name="entry_descri_pickcate"
Grid.Column="1"
FontFamily="arial"
MaxLength="50"
Placeholder="Kurzbeschreibung"
BackgroundColor="#00000000"
TextColor="#272727"
HorizontalOptions="Center"
VerticalOptions="Center">
</Entry>
</Grid>
<Grid Grid.Row="6">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ImageButton
Margin="10,10,10,10"
Grid.Column="1"
Aspect="AspectFit"
HorizontalOptions="Center"
VerticalOptions="Center"
x:Name="name_btnfoto_pickcat"
BackgroundColor="#00000000"
Source="fotobutton.png" />
</Grid>
</Grid>
它工作正常,但是现在我想更改最后两行。现在倒数第二行应该有一个文本,该文本采用最后两行的大小。但我似乎无法使倒数第二行跨入最后一行。这是atm的结果:
您可以看到,这里的内容就在第一行之内,但是我希望它能很好地重叠到第二行。这是当前的代码:
private void SetLayoutForTakers()
{
btn_dummy_piccat2.IsVisible = false;
entry_descri_pickcate.IsVisible = false;
Grid grid = new Grid(); //Neues Grid
BoxView bx = new BoxView();
Label lb = new Label();
//Label Properties
lb.Text = "Tipp: Sie können auch nur nach Titeln suchen, oder nach bestimmten Titeln in einer oder mehrerer Kategorien!";
lb.TextColor = Xamarin.Forms.Color.White;
lb.FontSize = 12;
lb.FontFamily = "arial";
bx.Color = Xamarin.Forms.Color.Red;
grid.Children.Add(bx);
grid.Children.Add(lb);
row5_piccat.Children.Add(grid,1,1);
}
那么我如何实现我的目标?最后,红色的boxview应该代替了两行(最后两行)rn,只在其中一行。
所有步骤都需要以编程方式完成:-)。
谢谢你!
答案 0 :(得分:0)
Grid.Children.Add有一个重载,可让您指定范围值
public void Add (Xamarin.Forms.View view, int left, int right, int top, int bottom);
左 Int32
列跨度的左边缘。必须大于或等于0。
对 Int32
列跨度的右边缘。必须大于左侧。风景 将不会占用此列,但会在它之前停下。
顶部 Int32
行跨度的顶部边缘。必须大于或等于0。
底部 Int32
行跨度的底部边缘。必须大于top。