我如何在后面的代码中创建这样的东西？
<Style x:Key="{x:Type ToolTip}" TargetType="ToolTip">
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="HasDropShadow" Value="True"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToolTip">
<Border CornerRadius="5" HorizontalAlignment="Center" VerticalAlignment="Top" Padding="1" BorderThickness="1,1,1,1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#F7D073" Offset="0"/>
<GradientStop Color="#F1A62F" Offset="1"/>
</LinearGradientBrush>
</Border.Background>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Border HorizontalAlignment="Stretch" BorderThickness="0,0,0,1" BorderBrush="Black" Margin="5" Grid.ColumnSpan="2">
<TextBlock FontSize="14" TextAlignment="Left" Text="{TemplateBinding Content}"/>
</Border>
<TextBlock Grid.Column="0" Grid.Row="1" Margin="10,0,5,0">Column1:</TextBlock>
<TextBlock Grid.Column="1" Grid.Row="1" FontWeight="Bold" Text="{Binding Column1}" TextAlignment="Left" />
<TextBlock Grid.Column="0" Grid.Row="2" Margin="10,0,5,0">Column2:</TextBlock>
<TextBlock Grid.Column="1" Grid.Row="2" FontWeight="Bold" Text="{Binding Column2}" TextAlignment="Left" />
<TextBlock Grid.Column="0" Grid.Row="3" Margin="10,0,5,0">Column3:</TextBlock>
<TextBlock Grid.Column="1" Grid.Row="3" FontWeight="Bold" Text="{Binding Column3}" TextAlignment="Left" />
<TextBlock Grid.Column="0" Grid.Row="4" Margin="10,0,5,0">Column4:</TextBlock>
<TextBlock Grid.Column="1" Grid.Row="4" FontWeight="Bold" Text="{Binding Column4}" TextAlignment="Left" />
<TextBlock Grid.Column="0" Grid.Row="5" Margin="10,0,5,0">Column5:</TextBlock>
<TextBlock Grid.Column="1" Grid.Row="5" FontWeight="Bold" Text="{Binding Column5}" TextAlignment="Left" />
<TextBlock Grid.Column="0" Grid.Row="6" Margin="10,0,5,0">ColumnX:</TextBlock>
<TextBlock Grid.Column="1" Grid.Row="6" FontWeight="Bold" Text="{Binding ColumnX}" TextAlignment="Left" />
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
我们的想法是将DataTable传递给具有未知列数的控件，并且能够构建一个工具提示，其中包含很多列。
上面的代码用于构建一个非常具体的案例，但现在我想尽可能地使用它，但是我对WPF代码隐藏的了解不是创建这样的东西所需的。
答案 0 :(得分：0)
所以我无法使用工具提示中的网格执行此操作，但我可以使用stackpanels
解决方案是一个多阶段的approch。首先覆盖ToolTip的默认样式
var style = new Style {TargetType = typeof (ToolTip)};
style.Setters.Add(new Setter {Property = TemplateProperty, Value = GetToolTip(dataTable)});
style.Setters.Add(new Setter{Property = OverridesDefaultStyleProperty, Value = true});
style.Setters.Add(new Setter{Property = System.Windows.Controls.ToolTip.HasDropShadowProperty, Value = true});
Resources.Add(typeof(ToolTip), style);
然后为TemplateProperty setter创建模板，GetToolTip（）函数的内容如下所示
private ControlTemplate GetToolTip(DataTable dt) {
//Create Template where all factories will be assigned to
var templateTT = new ControlTemplate(typeof (ToolTip));
//Main border and background of the ToolTip
var borderFactory = new FrameworkElementFactory(typeof (Border));
borderFactory.SetValue(Border.CornerRadiusProperty, new CornerRadius(5));
borderFactory.SetValue(HorizontalAlignmentProperty, HorizontalAlignment.Center);
borderFactory.SetValue(VerticalAlignmentProperty, VerticalAlignment.Top);
borderFactory.SetValue(PaddingProperty, new Thickness(1, 1, 1, 1));
borderFactory.SetValue(BorderThicknessProperty, new Thickness(1,1,1,1));
//Brush for the background
var borderBrush = new LinearGradientBrush {EndPoint = new Point(.5, 1), StartPoint = new Point(.5, 0)};
borderBrush.GradientStops.Add(new GradientStop(Color.FromArgb(255,247,208,115),0));
borderBrush.GradientStops.Add(new GradientStop(Color.FromArgb(255, 241, 166, 47), .5));
//Assign the brush to the backgfound property of the border
borderFactory.SetValue(BackgroundProperty, borderBrush);
//Main Vertical StackPanel that will contain all the horizontal stackpanels
var verticalStackFactory = new FrameworkElementFactory(typeof (StackPanel));
verticalStackFactory.SetValue(StackPanel.OrientationProperty, Orientation.Vertical);
foreach (DataColumn item in dt.Columns) {
//ID column is to be igoned and not shown on the tooltip
if(item.ColumnName.Equals("ID")) continue;
//Name column will be used as the "Header" of the tooltip
if (item.ColumnName.Equals("Name")) {
var headerStackFactory = new FrameworkElementFactory(typeof(StackPanel));
headerStackFactory.SetValue(StackPanel.OrientationProperty, Orientation.Horizontal);
//border of the header (to create the underline)
var headerBorderBrush = new FrameworkElementFactory(typeof (Border));
headerBorderBrush.SetValue(HorizontalAlignmentProperty, HorizontalAlignment.Stretch);
headerBorderBrush.SetValue(BorderThicknessProperty, new Thickness(0, 0, 0, 1));
headerBorderBrush.SetValue(BorderBrushProperty, new SolidColorBrush(Colors.Black));
headerBorderBrush.SetValue(MarginProperty, new Thickness(5));
//Text of the header bound to the Name column
var headerTextBox = new FrameworkElementFactory(typeof (TextBlock));
headerTextBox.SetValue(FontSizeProperty, 14.0);
headerTextBox.SetValue(TextBlock.TextAlignmentProperty, TextAlignment.Left);
headerTextBox.SetValue(ForegroundProperty, new SolidColorBrush(Colors.Black));
headerTextBox.SetBinding(TextBlock.TextProperty, new Binding("Name"));
headerBorderBrush.AppendChild(headerTextBox);
headerStackFactory.AppendChild(headerBorderBrush);
verticalStackFactory.AppendChild(headerStackFactory);
}
else {
//Horizontal Stack Panel
var horizontalStackFactory = new FrameworkElementFactory(typeof (StackPanel));
horizontalStackFactory.SetValue(StackPanel.OrientationProperty, Orientation.Horizontal);
//Add the TextBlock Label
var factoryLabel = new FrameworkElementFactory(typeof (TextBlock));
factoryLabel.SetValue(MarginProperty, new Thickness(10, 0, 5, 0));
factoryLabel.SetValue(ForegroundProperty, new SolidColorBrush(Colors.Black));
factoryLabel.SetValue(TextBlock.TextProperty, string.Format("{0}: ", item.ColumnName.Replace("_", " ")));
horizontalStackFactory.AppendChild(factoryLabel);
//Add the TextBlock Value bound to the column name
var factoryText = new FrameworkElementFactory(typeof (TextBlock));
factoryText.SetValue(FontWeightProperty, FontWeights.Bold);
factoryText.SetValue(ForegroundProperty, new SolidColorBrush(Colors.Black));
factoryText.SetValue(TextBlock.TextAlignmentProperty, TextAlignment.Left);
factoryText.SetBinding(TextBlock.TextProperty, new Binding(item.ColumnName));
horizontalStackFactory.AppendChild(factoryText);
verticalStackFactory.AppendChild(horizontalStackFactory);
}
}
borderFactory.AppendChild(verticalStackFactory);
templateTT.VisualTree = borderFactory;
return templateTT;
}
为组合框项目
创建模板 var template = new DataTemplate();
var textBlockFactory = new FrameworkElementFactory(typeof (TextBlock));
textBlockFactory.SetValue(ToolTipService.ShowDurationProperty, 60000);
textBlockFactory.SetValue(ToolTipService.InitialShowDelayProperty, 0);
textBlockFactory.SetBinding(TextBlock.TextProperty, new Binding("Name"));
textBlockFactory.SetBinding(ToolTipProperty, new Binding("Name"));
template.VisualTree = textBlockFactory;
InsurancePlanMaster.ItemTemplate = template;
这允许我创建一个绑定到数据表的自定义ComboBox，其自定义工具提示绑定到表中的其他行。