如何:创建网格元素

示例

以下示例演示如何使用 Extensible Application Markup Language (XAML) 或代码创建和使用 Grid 实例。 此示例使用三个 ColumnDefinition 对象和三个 RowDefinition 对象来创建一个具有九个单元格的网格,例如在工作表中。 每个单元格都包含一个表示数据的 TextBlock 元素,顶部行包含一个应用了 ColumnSpan 属性的 TextBlock。 为了显示每个单元格的边界,启用了 ShowGridLines 属性。


// Create the application's main window
mainWindow = new Window();
mainWindow.Title = "Grid Sample";

// Create the Grid
Grid myGrid = new Grid();
myGrid.Width = 250;
myGrid.Height = 100;
myGrid.HorizontalAlignment = HorizontalAlignment.Left;
myGrid.VerticalAlignment = VerticalAlignment.Top;
myGrid.ShowGridLines = true;

// Define the Columns
ColumnDefinition colDef1 = new ColumnDefinition();
ColumnDefinition colDef2 = new ColumnDefinition();
ColumnDefinition colDef3 = new ColumnDefinition();
myGrid.ColumnDefinitions.Add(colDef1);
myGrid.ColumnDefinitions.Add(colDef2);
myGrid.ColumnDefinitions.Add(colDef3);

// Define the Rows
RowDefinition rowDef1 = new RowDefinition();
RowDefinition rowDef2 = new RowDefinition();
RowDefinition rowDef3 = new RowDefinition();
RowDefinition rowDef4 = new RowDefinition();
myGrid.RowDefinitions.Add(rowDef1);
myGrid.RowDefinitions.Add(rowDef2);
myGrid.RowDefinitions.Add(rowDef3);
myGrid.RowDefinitions.Add(rowDef4);

// Add the first text cell to the Grid
TextBlock txt1 = new TextBlock();
txt1.Text = "2005 Products Shipped";
txt1.FontSize = 20;
txt1.FontWeight = FontWeights.Bold;
Grid.SetColumnSpan(txt1, 3);
Grid.SetRow(txt1, 0);

// Add the second text cell to the Grid
TextBlock txt2 = new TextBlock();
txt2.Text = "Quarter 1";
txt2.FontSize = 12;
txt2.FontWeight = FontWeights.Bold;
Grid.SetRow(txt2, 1);
Grid.SetColumn(txt2, 0);

// Add the third text cell to the Grid
TextBlock txt3 = new TextBlock();
txt3.Text = "Quarter 2";
txt3.FontSize = 12;
txt3.FontWeight = FontWeights.Bold;
Grid.SetRow(txt3, 1);
Grid.SetColumn(txt3, 1);

// Add the fourth text cell to the Grid
TextBlock txt4 = new TextBlock();
txt4.Text = "Quarter 3";
txt4.FontSize = 12;
txt4.FontWeight = FontWeights.Bold;
Grid.SetRow(txt4, 1);
Grid.SetColumn(txt4, 2);

// Add the sixth text cell to the Grid
TextBlock txt5 = new TextBlock();
Double db1 = new Double();
db1 = 50000;
txt5.Text = db1.ToString();
Grid.SetRow(txt5, 2);
Grid.SetColumn(txt5, 0);

// Add the seventh text cell to the Grid
TextBlock txt6 = new TextBlock();
Double db2 = new Double();
db2 = 100000;
txt6.Text = db2.ToString();
Grid.SetRow(txt6, 2);
Grid.SetColumn(txt6, 1);

// Add the final text cell to the Grid
TextBlock txt7 = new TextBlock();
Double db3 = new Double();
db3 = 150000;
txt7.Text = db3.ToString();
Grid.SetRow(txt7, 2);
Grid.SetColumn(txt7, 2);

// Total all Data and Span Three Columns
TextBlock txt8 = new TextBlock();
txt8.FontSize = 16;
txt8.FontWeight = FontWeights.Bold;
txt8.Text = "Total Units: " + (db1 + db2 + db3).ToString();
Grid.SetRow(txt8, 3);
Grid.SetColumnSpan(txt8, 3);

// Add the TextBlock elements to the Grid Children collection
myGrid.Children.Add(txt1);
myGrid.Children.Add(txt2);
myGrid.Children.Add(txt3);
myGrid.Children.Add(txt4);
myGrid.Children.Add(txt5);
myGrid.Children.Add(txt6);
myGrid.Children.Add(txt7);
myGrid.Children.Add(txt8);

// Add the Grid as the Content of the Parent Window Object
mainWindow.Content = myGrid;
mainWindow.Show ();

Public Sub New()
    WindowTitle = "Grid Sample"
    'Create a Grid as the root Panel element
    Dim myGrid As New Grid()
    myGrid.Height = 100
    myGrid.Width = 250
    myGrid.ShowGridLines = True
    myGrid.HorizontalAlignment = Windows.HorizontalAlignment.Left
    myGrid.VerticalAlignment = Windows.VerticalAlignment.Top

    ' Define and Add the Rows and Columns
    Dim colDef1 As New ColumnDefinition
    Dim colDef2 As New ColumnDefinition
    Dim colDef3 As New ColumnDefinition
    myGrid.ColumnDefinitions.Add(colDef1)
    myGrid.ColumnDefinitions.Add(colDef2)
    myGrid.ColumnDefinitions.Add(colDef3)

    Dim rowDef1 As New RowDefinition
    Dim rowDef2 As New RowDefinition
    Dim rowDef3 As New RowDefinition
    Dim rowDef4 As New RowDefinition
    myGrid.RowDefinitions.Add(rowDef1)
    myGrid.RowDefinitions.Add(rowDef2)
    myGrid.RowDefinitions.Add(rowDef3)
    myGrid.RowDefinitions.Add(rowDef4)

    Dim txt1 As New TextBlock
    txt1.Text = "2004 Products Shipped"
    txt1.FontSize = 20
    txt1.FontWeight = FontWeights.Bold
    Grid.SetColumnSpan(txt1, 3)
    Grid.SetRow(txt1, 0)
    myGrid.Children.Add(txt1)

    Dim txt2 As New TextBlock
    txt2.Text = "Quarter 1"
    txt2.FontSize = 12
    txt2.FontWeight = FontWeights.Bold
    Grid.SetRow(txt2, 1)
    Grid.SetColumn(txt2, 0)
    myGrid.Children.Add(txt2)

    Dim txt3 As New TextBlock
    txt3.Text = "Quarter 2"
    txt3.FontSize = 12
    txt3.FontWeight = FontWeights.Bold
    Grid.SetRow(txt3, 1)
    Grid.SetColumn(txt3, 1)
    myGrid.Children.Add(txt3)

    Dim txt4 As New TextBlock
    txt4.Text = "Quarter 3"
    txt4.FontSize = 12
    txt4.FontWeight = FontWeights.Bold
    Grid.SetRow(txt4, 1)
    Grid.SetColumn(txt4, 2)
    myGrid.Children.Add(txt4)

    Dim txt5 As New TextBlock
    txt5.Text = "50,000"
    Grid.SetRow(txt5, 2)
    Grid.SetColumn(txt5, 0)
    myGrid.Children.Add(txt5)

    Dim txt6 As New Controls.TextBlock
    txt6.Text = "100,000"
    Grid.SetRow(txt6, 2)
    Grid.SetColumn(txt6, 1)
    myGrid.Children.Add(txt6)

    Dim txt7 As New TextBlock
    txt7.Text = "150,000"
    Grid.SetRow(txt7, 2)
    Grid.SetColumn(txt7, 2)
    myGrid.Children.Add(txt7)

    ' Add the final TextBlock Cell to the Grid
    Dim txt8 As New TextBlock
    txt8.FontSize = 16
    txt8.FontWeight = FontWeights.Bold
    txt8.Text = "Total Units: 300000"
    Grid.SetRow(txt8, 3)
    Grid.SetColumnSpan(txt8, 3)
    myGrid.Children.Add(txt8)

    Me.Content = myGrid
End Sub
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="Grid Sample">
    <Grid VerticalAlignment="Top" HorizontalAlignment="Left" ShowGridLines="True" Width="250" Height="100">
      <Grid.ColumnDefinitions>
        <ColumnDefinition />
        <ColumnDefinition />
        <ColumnDefinition />
      </Grid.ColumnDefinitions>
      <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition />
        <RowDefinition />
        <RowDefinition />
      </Grid.RowDefinitions>

      <TextBlock FontSize="20" FontWeight="Bold" Grid.ColumnSpan="3" Grid.Row="0">2005 Products Shipped</TextBlock>
      <TextBlock FontSize="12" FontWeight="Bold" Grid.Row="1" Grid.Column="0">Quarter 1</TextBlock>
      <TextBlock FontSize="12" FontWeight="Bold" Grid.Row="1" Grid.Column="1">Quarter 2</TextBlock>
      <TextBlock FontSize="12" FontWeight="Bold" Grid.Row="1" Grid.Column="2">Quarter 3</TextBlock>
      <TextBlock Grid.Row="2" Grid.Column="0">50000</TextBlock>
      <TextBlock Grid.Row="2" Grid.Column="1">100000</TextBlock>
      <TextBlock Grid.Row="2" Grid.Column="2">150000</TextBlock>
      <TextBlock FontSize="16" FontWeight="Bold" Grid.ColumnSpan="3" Grid.Row="3">Total Units: 300000</TextBlock>
    </Grid>
</Page>

任一方法都会生成一个看起来非常相似的用户界面,如下所示。

a screenshot depicts a WPF user interface which contains a grid broken into three columns. It bears the heading '2018 Products Shipped' spanning all columns of the top row, and has three columns each with sales figures for a certain quarter. The bottom row has text spanning two columns with the message 'Total Units: 300,000'

另请参阅