Question

我想在运行时创建一个网格。这是用于说明我正在寻找的xaml代码：

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
            Name='Test'>
    <Grid.RowDefinitions>
        <RowDefinition Height='*' />
        <RowDefinition Height='*' />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width='*' />
        <ColumnDefinition Width='*' />
        <ColumnDefinition Width='*' />
        <ColumnDefinition Width='*' />
        <ColumnDefinition Width='*' />
    </Grid.ColumnDefinitions>
</Grid>

上面的xaml代码很好，除了它是静态的和固定的。我希望应用程序在运行时根据用户输入创建列和行定义。所以，我创建了一个名为initiate grid的方法：

private void initiateGrid()
{
    int numberOfColumn = 10;
    for (int j = 0; j < (numberOfColumn / 5) + 1; j++)
    {
        RowDefinition r1 = new RowDefinition();
        Test.RowDefinitions.Add(r1);
        for (int i = 0; i < numberOfColumn; i++)
        {
            ColumnDefinition c1 = new ColumnDefinition();
            c1.Width = new GridLength(1, GridUnitType.Star);
            Test.ColumnDefinitions.Add(c1);
            TextBlock tb = new TextBlock();
            tb.FontSize = 20;
            tb.VerticalAlignment = VerticalAlignment.Top;
            tb.HorizontalAlignment = HorizontalAlignment.Stretch;
            tb.Text = string.Format("Text row {0}, column {1}", j, i);
            Test.Children.Add(tb);
            Grid.SetColumn(Test, i);
            Grid.SetRow(Test, j);
        }
    }
}

我在MainPage中有initializeComponent后调用它。

public MainPage()
{
    this.InitializeComponent();
    initiateGrid();
}

我没有收到编译器错误或运行时错误，但我没有看到我试图填充的文本块来验证位置的准确性。有人可以为我揭开光明吗？我的代码出了什么问题？

谢谢！

Answer 1

这正是我的代码中出错的地方：

1）我创建了太多列

2）我应该将行和列分配给文本块，而不是网格这就是正确的代码：

<div id="chartContainer">
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://dimplejs.org/dist/dimple.v1.1.1.min.js"></script>
</div>

<script>

console.log(data);

var svg = dimple.newSvg("#chartContainer", 1000, 1000);
var data = [
          { '"loc"': '"Hamburg, Deutschland"', '"title"': "CNC-Dreher/in" },
          { '"loc"': 'M?nchen (Kreis), Bayern', '"title"': "Data Scientist" },
          { '"loc"': '"D?sseldorf, Nordrhein-Westfalen"', '"title"': "Praktikant m|w" },
          { '"loc"': '"Rheinland-Pfalz, Deutschland"', '"title"': "Senior Softwareentwickler Logistikdienstleistung(w/m)" },
          { '"loc"': '"D?sseldorf, Nordrhein-Westfalen"', '"title"': "Projektmanager (m/w) Information Engineering" },
          { '"loc"': '"Grimma, Leipzig (Kreis)"', '"title"': "Softwareentwickler (m/w)" },
          { '"loc"': '"Hannover, Region Hannover (Kreis)"', '"title"': "Bauleiter (m/w)" },
          { '"loc"': '"M?nchen (Kreis), Bayern"', '"title"': "Backend Software Developer (m/f)" },
          { '"loc"': '"Ratingen, Mettmann (Kreis)"', '"title"': "Ausbildung Industriekaufmann (m/w)" },
          { '"loc"': '"Bayern, Deutschland"', '"title"': "Dualer Studiengang Bachelor of Arts (Fachrichtung Bank/Vertrieb) Bayern" },
          { '"loc"': '"Landshut, Landshut (Kreis)"', '"title"': "Spezialist CFK m/w" },
          { '"loc"': '"Frankfurt am Main, Hessen"', '"title"': "Data Analyst / Consultant analytisches CRM (m/w) f?r unseren Premium Partner EDEKA" },
          { '"loc"': '"Hamburg, Deutschland"', '"title"': "Produktmanager (m/w) im Bereich Privat Kraft" },
          { '"loc"': '"Unterf?hring, M?nchen (Kreis)"', '"title"': "Controller / Assistent der Gesch?ftsleitung" },
          { '"loc"': '"Berlin, Deutschland"', '"title"': "Projektmanager (m/w)" },
          { '"loc"': 'Royal Leamington Spa', '"title"': "SOFTWARE TEST ENGINEER / QA (m/w)" },
          { '"loc"': '"Lauf an der Pegnitz, N?rnberger Land (Kreis)"', '"title"': "Bilanzbuchhalter/in" },
          { '"loc"': '"Buchenb?hl, N?rnberg"', '"title"': "Inhouse Business Intelligence Berater (m/w)" },
          { '"loc"': '"Berlin, Deutschland"', '"title"': "Praktikant Vertriebscontrolling (m/w) f?r die Dauer von 6 Monaten (Pflichtpraktikum)" }
        ];
var chart = new dimple.chart(svg,data);
chart.setBounds(100, 100, 500, 300);

// Add a Brand ordinal axis on "x"
var x =  chart.axes.push(new dimple.axis(chart, "x", '"loc"', null));
// Add a Sales Volume linear numerical axis on "y"
var y =  chart.axes.push(new dimple.axis(chart, "y", null, '"title"'));
// // Add a time axis on "x" for the date field

var lines = chart.addSeries(["project"], dimple.bar, [x, y]);

lines.data = data;
lines.lineWeight = 5;
lines.lineMarkers = true;

chart.draw();

</script>

Answer 2

这是您尝试使用AttachedProperty https://rachel53461.wordpress.com/2011/09/17/wpf-grids-rowcolumn-count-properties/

实现的目标的一个很好的示例

在您的XAML中，您只需使用......

XAML

<Grid local:GridHelpers.RowCount="{Binding RowCount}"
      local:GridHelpers.ColumnCount="{Binding ColumnCount}" />

视图模型

    public MainWindowVM()
    {
        this.RowCount = 4;
        this.ColumnCount = 5;
    }

    private int _RowCount;

    public int RowCount
    {
        get { return _RowCount; }
        set { _RowCount = value; NotifyPropertyChanged("RowCount"); }
    }

    private int _ColumnCount;

    public int ColumnCount
    {
        get { return _ColumnCount; }
        set { _ColumnCount = value; NotifyPropertyChanged("ColumnCount"); }
    }

以编程方式设置ColumnDefinition和RowDefinition

2 个答案: