单行输入 <Window x:Class="WpfTutorialSamples.Basic_controls.TextBoxSample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="TextBoxSample" Height="80" Width="250"> <StackPanel Margin="10"> <TextBox /> </StackPanel> </Window>
多行输入 <Window x:Class="WpfTutorialSamples.Basic_controls.TextBoxSample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="TextBoxSample" Height="160" Width="280"> <Grid Margin="10"> <TextBox AcceptsReturn="True" TextWrapping="Wrap" VerticalScrollBarVisibility="Visible"/> </Grid> </Window>
自动换行 追加文本 // do work textBox.AppendText("Work finished\r\n"); // better way than Text += according to msdn // do more textBox.AppendText("One more message\r\n");
自动滚动到底部 tb_out.ScrollToEnd(); // 如果有问题就使用这种方式 Status.Focus(); Status.CaretIndex = Status.Text.Length; Status.ScrollToEnd();
设置焦点 <Grid FocusManager.FocusedElement="{Binding ElementName=inputbox}"> <TextBox Name="inputbox" HorizontalAlignment="Left" Height="24" Margin="10,10,0,0" Text="{Binding SearchText, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" TextWrapping="Wrap" VerticalAlignment="Top" Width="161"> <TextBox.InputBindings> <!--键盘事件绑定--> <KeyBinding Command="{Binding Search_Click}" Key="Enter"/> </TextBox.InputBindings> </TextBox> </Grid>
代码实现
// 设置 扫描输入框焦点 tb_machineId.Focus();
数据绑定 <TextBox x:Name="tb_info_block_width" Grid.Column="1" Margin="2" Text="{Binding Path=Info_block_width, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></TextBox> tb_info_block_width.DataContext = App.db.m_config[0]; public class dbHelper:INotifyPropertyChanged { public ObservableCollection<Model_config> m_config = new ObservableCollection<Model_config>(); public event PropertyChangedEventHandler PropertyChanged; public void RaisePropertyChanged([CallerMemberName] String propertyName = "") { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } public ObservableCollection<Model_config> List_config() { Log.Information("List_config enter"); m_config.Clear(); try { var ret = App.conn.GetTableInfo("Model_config"); if (0 == ret.Count) { App.conn.CreateTable<Model_config>(); } // 访问数据库 var query = App.conn.Table<Model_config>(); foreach (var item in query) { m_config.Add(item); } return m_config; } catch (Exception ex) { MessageBox.Show("获取配置数据出现异常." + ex.Message); Log.Error(ex, "List_config failed"); } return m_config; } public int Insert_model<T>(T model) { try { // 访问数据库 var modified = App.conn.Insert(model); return modified; } catch (Exception ex) { MessageBox.Show("插入数据出现异常." + ex.Message); Log.Error(ex, model.ToString() + " failed"); } return 0; } public int Update_model<T>(T model) { try { // 访问数据库 var modified = App.conn.Update(model); return modified; } catch (Exception ex) { MessageBox.Show("更新数据出现异常." + ex.Message); Log.Error(ex, model.ToString() + " failed"); } return 0; } public int Delete_model<T>(T x, int id) { try { // 访问数据库 var modified = App.conn.Delete<T>(id); return modified; } catch (Exception ex) { MessageBox.Show("删除数据出现异常." + ex.Message); Log.Error(ex, x.ToString() + " failed"); } return 0; } }
批量设置字体 <StackPanel.Resources> <Style TargetType="TextBlock"> <Setter Property="FontSize" Value="16"/> </Style> <Style TargetType="TextBox"> <Setter Property="FontSize" Value="16"/> </Style> </StackPanel.Resources>
字体颜色 measurDisplay.tb_operate_status.Foreground = new BrushConverter().ConvertFromString("#CC0033") as SolidColorBrush;
启动时设置焦点 使用 FocusManager
<Grid FocusManager.FocusedElement="{Binding ElementName=tb_userName}">
<Window x:Class="SPCAssist.WinUserLogin" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:SPCAssist" mc:Ignorable="d" WindowStartupLocation="CenterScreen" Title="登录窗口" Height="200" Width="300"> <Grid FocusManager.FocusedElement="{Binding ElementName=tb_userName}"> <Grid.RowDefinitions> <RowDefinition Height="auto"/> <RowDefinition Height="auto"/> <RowDefinition Height="auto"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="3*"/> <ColumnDefinition Width="7*"/> </Grid.ColumnDefinitions> <Grid.Resources> <Style TargetType="TextBlock"> <Setter Property="FontSize" Value="16"/> </Style> <Style TargetType="TextBox"> <Setter Property="FontSize" Value="16"/> </Style> </Grid.Resources> <TextBlock Grid.Row="0" Grid.Column="0" Margin="10">用户名：</TextBlock> <TextBox x:Name="tb_userName" Grid.Row="0" Grid.Column="1" Margin="10"></TextBox> <TextBlock Grid.Row="1" Grid.Column="0" Margin="10,0">密码：</TextBlock> <PasswordBox x:Name="tb_password" Grid.Row="1" Grid.Column="1" Margin="10,0"/> <Button Grid.Row="2" Grid.ColumnSpan="2" Margin="10,10,10,0" Name="btnLogin" FontSize="16" Click="btnLogin_Click">登 录</Button> </Grid> </Window>
Label and TextBlock Label is ContentControl which means that you can set anything as a content for it. Absolutely anything including strings, numbers, dates, other controls, images, shapes, etc. TextBlock can handle only strings.
TextBlock is not a control
Be given a custom control template (via the Template property).
Display data other than just a string (via the Content property).
Apply a DataTemplate to its content (via the ContentTemplate property).
Do whatever else a ContentControl can do that a FrameworkElement cannot.
Label text is grayed out when disabled