用c#为网格添加文本框

本文关键字：文本 添加 网格 | 更新日期: 2023-09-27 18:16:16

我对c#相当陌生。我试图通过单击按钮添加一个文本框到网格。当我点击这个按钮时，网格上的所有东西都消失了:

    private void addLine_Click(object sender, System.EventArgs e)
    {
        System.Windows.Controls.TextBox txt = new System.Windows.Controls.TextBox();
        txt.Name = "textBox8";
        dxfLines.Children.Add(txt);
    }

这里也是xaml:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="DXFGenerator" Height="350" Width="525" Loaded="Window_Loaded">
    <Grid Name="dxfLines">
        <TextBox Height="23" HorizontalAlignment="Left" Margin="271,94,0,0" Name="textBox1" VerticalAlignment="Top" Width="120" />
        <Button Content="Generate DXF" Height="23" HorizontalAlignment="Left" Margin="286,194,0,0" Name="button1" VerticalAlignment="Top" Width="84" Click="button1_Click" />
        <Button Content="Add Line" Height="23" HorizontalAlignment="Left" Margin="391,196,0,0" Name="button2" VerticalAlignment="Top" Width="75" Click="addLine_Click" />
    </Grid>
</Window>

用c#为网格添加文本框

如果使用的是网格，则需要定义行和列。您的xaml应该看起来像这样:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="DXFGenerator" Height="350" Width="525" Loaded="Window_Loaded">
    <Grid Name="dxfLines" x:FieldModifier="private" >
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <TextBox Height="23" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" Grid.Column="2" Grid.Row="4" />
        <Button Content="Generate DXF" Height="23" HorizontalAlignment="Left" Grid.Column="1" Grid.Row="6" VerticalAlignment="Top" Width="84" Click="button1_Click" />
        <Button Content="Add Line" Height="23" HorizontalAlignment="Left"  Grid.Column="2" Grid.Row="6" VerticalAlignment="Top" Width="75" Click="addLine_Click" />
    </Grid>
</Window>

您还需要为要添加的文本框指定行和列，以便网格知道将文本框放置在何处。你的addLine点击的内容应该看起来像:

System.Windows.Controls.TextBox txt = new System.Windows.Controls.TextBox();
txt.Name = "textBox8";
Grid.SetColumn(txt,1);
Grid.SetRow(txt, 1);
dxfLines.Children.Add(txt);

此外，请记住，为了添加新的子项，您选择Grid窗体而不是Window窗体。Window窗体没有Children属性，但是在这个例子中，Grid窗体有属性。

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