silverlight 在grid下面动态添加行

最新推荐文章于 2022-08-04 10:00:35 发布

原创最新推荐文章于 2022-08-04 10:00:35 发布 · 3.3k 阅读

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CC 4.0 BY-SA版权

文章标签：

#silverlight #textbox #datatemplate #binding #object

该博客介绍了如何在Silverlight中动态地向Grid中添加行，并包含TextBlock和TextBox控件。当用户点击按钮时，会创建包含字段名称、类型和序列号的输入行。此外，还提供了动态添加ComboBox及其DataTemplate的方法，用于显示和选择类型。

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       /// <summary>
        /// 动态添加行
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void addRow_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            bool canAdd = true;
            if (canAdd)
            {
                //添加字段名称
                TextBlock textBlock1 = new TextBlock();
                textBlock1.Text = "名称:";
                textBlock1.Margin = new Thickness(0, 0, 13, 0);
                textBlock1.Height = 25;
                textBlock1.HorizontalAlignment = HorizontalAlignment.Right;
                textBlock1.VerticalAlignment = VerticalAlignment.Bottom;
                textBlock1.TextWrapping = TextWrapping.Wrap;
                Grid.SetColumn(textBlock1, 0);
                Grid.SetRow(textBlock1, row);
                Grid.SetColumnSpan(textBlock1, 1);
                FieldGrid.Children.Add(textBlock1);
                //添加字段名称文本框
                TextBox textBox1 = new TextBox();
                textBox1.Name = "txtField" + row;
                textBox1.Margin = new Thickness(2, 4, 2, 4);
                textBox1.Height = 22;
                Grid.SetColumn(textBox1, 1);
                Grid.SetRow(textBox1, row);
                FieldGrid.Children.Add(textBox1);

                //添加字段类型
                TextBlock textBlock2 = new TextBlock();
                textBlock2.Text = "类型:";
                textBlock2.Margin = new Thickness(0, 0, 13, 0);
                textBlock2.Height = 25;
                textBlock2.HorizontalAlignment = HorizontalAlignment.Right;
                textBlock2.VerticalAlignment = VerticalAlignment.Bottom;
                textBlock2.TextWrapping = TextWrapping.Wrap;
                Grid.SetColumn(textBlock2, 2);
                Grid.SetRow(textBlock2, row);
                Grid.SetColumnSpan(textBlock2, 1);
                FieldGrid.Children.Add(textBlock2);
                //添加字段类型文本框
                TextBox textBox2 = new TextBox();
                textBox2.Name = "txtFieldType" + row;
                textBox2.Margin = new Thickness(2, 4, 2, 4);
                textBox2.Height = 22;
                Grid.SetColumn(textBox2, 3);
                Grid.SetRow(textBox2, row);
                FieldGrid.Children.Add(textBox2);

                //添加序列号
                TextBlock textBlock3 = new TextBlock();
                textBlock3.Text = "序列:";
                textBlock3.Margin = new Thickness(0, 0, 13, 0);
                textBlock3.Height = 25;
                textBlock3.HorizontalAlignment = HorizontalAlignment.Right;
                textBlock3.VerticalAlignment = VerticalAlignment.Bottom;
                textBlock3.TextWrapping = TextWrapping.Wrap;
                Grid.SetColumn(textBlock3, 4);
                Grid.SetRow(textBlock3, row);
                Grid.SetColumnSpan(textBlock3, 1);
                FieldGrid.Children.Add(textBlock3);
                //添加字段类型文本框
                TextBox textBox3 = new TextBox();
                textBox3.Name = "txtSequence" + row;
                textBox3.Margin = new Thickness(2, 4, 2, 4);
                textBox3.Height = 22;
                Grid.SetColumn(textBox3, 5);
                Grid.SetRow(textBox3, row);
                FieldGrid.Children.Add(textBox3);
                row++;
            }
            else if (row > 100)
            {
                canAdd = false;
            }
        }

附： silverlight动态添加下拉列表

ComboBox cboxType = new ComboBox();
                cboxType.Name = "cboxType"+row;
                cboxType.Width = 100;
                cboxType.Margin = new Thickness(2, 4, 2, 4);
                cboxType.Height = 22;
                cboxType.VerticalAlignment = VerticalAlignment.Center;
                cboxType.HorizontalAlignment = HorizontalAlignment.Left;
                Grid.SetColumn(cboxType, 3);
                Grid.SetRow(cboxType, row);
                //添加combobox模版
                DataTemplate dataTemplate = new DataTemplate();
                dataTemplate = (DataTemplate)XamlReader.Load
                    (@"<DataTemplate xmlns=""http://schemas.microsoft.com/client/2007"">
                                        <StackPanel Orientation='Horizontal'>
                                            <TextBlock Text='{Binding Name}' Visibility='Collapsed' />
                                            <TextBlock Text='{Binding Text}' VerticalAlignment='Center' />
                                        </StackPanel>
                                    </DataTemplate>"
                    );
                cboxType.ItemTemplate = dataTemplate;
                FieldGrid.Children.Add(cboxType);    //FieldGrid是Grid的name值。（<Grid Name="FieldGrid" ShowGridLines="False" Margin="0,0,0,-1">）