Question

我已经创建了一个文本框的控件数组，它们位于网格中但我无法访问该框以更改文本。到目前为止，我试图解决它：

                fields[row, col].IsEnabled = true;
                fields[row, col].IsReadOnly = false;

但它没有用。

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    int wdth = 40;
    int hght = 32;
    for (int row = 0; row <= 8; row++)
    {
        ColumnDefinition colDef = new ColumnDefinition();
        RowDefinition rowDef = new RowDefinition();
        colDef.MinWidth = wdth;
        colDef.MaxWidth = wdth;
        rowDef.MinHeight = hght;
        rowDef.MaxHeight = hght;
        grdAdtn.ColumnDefinitions.Add(colDef);
        grdAdtn.RowDefinitions.Add(rowDef); 
    };
    TextBox[,] fields = new TextBox[9, 9];
    FontFamily font = new FontFamily("Courier New");
    for(int row=0; row <= 8; row++){
        for(int col = 0; col <= 8; col++){
            fields[row,col]=new TextBox();
            fields[row, col].Name = "txt" + row.ToString() + "i"+col.ToString();
            if ((row==0)&&(col==0))
            {
                fields[row, col].Text = "+";
            }
            else if (row == 0)
            {
                fields[row, col].Text = (col+1).ToString();
            }
            else if (col == 0)
           {
               fields[row, col].Text = (row+1).ToString();
           }
           else
           {
               fields[row, col].Text = "??";
           }
            fields[row, col].FontSize = 22;
            fields[row, col].FontFamily = font;
            fields[row, col].MaxLength = 2;
            grdAdtn.Children.Add((fields[row, col]));
            Grid.SetColumn(fields[row,col], col);
            Grid.SetRow(fields[row,col], row);
            fields[row, col].Width = wdth-2;
            fields[row, col].Height = hght-2;
            fields[row, col].VerticalAlignment = VerticalAlignment.Center;
            fields[row, col].HorizontalAlignment = HorizontalAlignment.Center;
            fields[row, col].HorizontalContentAlignment = HorizontalAlignment.Center;
            fields[row, col].VerticalContentAlignment = VerticalAlignment.Center;
            fields[row, col].IsEnabled = true;
            fields[row, col].IsReadOnly = false;
           }
    }
}

任何线索？

此外，我可以使用fields[row,col].Focus()将它们聚焦，因此它们显然已启用，但我无法编写文本，当我在某些TextBox上单击鼠标时，它不会将焦点转移到该TextBox上（按Tab键工作）但我需要更多功能）。就我所见，它根本没有做任何事情。在动态创建TextBox后，是否需要为MouseDown / MouseUp手动添加事件处理程序？

Answer 1

我将你的Window_Loaded粘贴到解决方案中，构建并且它工作得很好 - 我可以更改生成的文本框中的文本就好了...除了

之外你还有什么在XAML中

<Grid x:Name="grdAdtn"/>

如何在动态创建TextBox控件后使TextBox的文本可编辑？

1 个答案: