WPF控件TEXTBOX增加输入限制，并且单个界面只需设置一次
作者：互联网
1 <Grid x:Name="Grid_Form">
2 <Grid.ColumnDefinitions>
3 <ColumnDefinition Width="0.2*"/>
4 <ColumnDefinition Width="0.7*"/>
5 <ColumnDefinition Width="0.1*"/>
6
7 </Grid.ColumnDefinitions>
8 <Grid.RowDefinitions>
9 <RowDefinition/>
10 <RowDefinition/>
11 <RowDefinition/>
12 <RowDefinition/>
13 <RowDefinition/>
14 <RowDefinition/>
15
16
17
18 </Grid.RowDefinitions>
19 <TextBlock Grid.Row="0" Grid.Column="0" Style="{StaticResource TextBlock_Grid}" Text="{Binding LanguagePack.UM_UserNoLabel,FallbackValue=用户编号：}" />
20 <TextBox Name="UserNoText" Style="{StaticResource textbox_Defalut}" Grid.Row="0" Grid.Column="1" Width="390" Height="35" Text="{Binding Model.UserCode}"
21 Py:ControlProperty.IsRequired="True"
22 Py:ControlProperty.ErrorMsg="用户编号为必填项！" MaxLength="50"/>
23 <Label Margin="0,9,0,0" Content="*" FontSize="30" Foreground="Red" Grid.Row="0" Grid.Column="2" HorizontalAlignment="Left" VerticalAlignment="Center" VerticalContentAlignment="Center"/>
24
25 <TextBlock Grid.Row="1" Grid.Column="0" Style="{StaticResource TextBlock_Grid}" Text="{Binding LanguagePack.UM_UserNameLabel,FallbackValue=用户名称：}" />
26 <TextBox Name="UserNameText" Style="{StaticResource textbox_Defalut}" Grid.Row="1" Grid.Column="1" Width="390" Text="{Binding Model.UserName}"
27 Py:ControlProperty.IsRequired="True"
28 Py:ControlProperty.ErrorMsg="用户名称为必填项！" MaxLength="50"/>
29 <Label Margin="0,9,0,0" Content="*" FontSize="30" Foreground="Red" Grid.Row="1" Grid.Column="2" HorizontalAlignment="Left" VerticalAlignment="Center" VerticalContentAlignment="Center"/>
30
31 <TextBlock Grid.Row="2" Grid.Column="0" Style="{StaticResource TextBlock_Grid}" Text="{Binding LanguagePack.UM_UserRoleLabel,FallbackValue=职 务：}"/>
32 <ComboBox Name="RoleComBox" Style="{StaticResource ComboBox_Grid}" Grid.Row="2" Grid.Column="1" Width="390" VerticalAlignment="Center" HorizontalAlignment="Center" SelectedValue="{Binding Model.Role}"/>
33 <Label Margin="0,9,0,0" Content="*" FontSize="30" Foreground="Red" Grid.Row="2" Grid.Column="2" HorizontalAlignment="Left" VerticalAlignment="Center" VerticalContentAlignment="Center"/>
34
35 <TextBlock Grid.Row="3" Grid.Column="0" Style="{StaticResource TextBlock_Grid}" Text="{Binding LanguagePack.UM_UserCardIdLabel,FallbackValue=身份证号：}"/>
36 <TextBox Name="CIDText" Style="{StaticResource textbox_Defalut}" Grid.Row="3" Grid.Column="1" Width="390" Margin="0,10,0,9" Text="{Binding Model.CardNo}" MaxLength="28"
37 Py:ControlProperty.TB_Type="Int"/>
38 <!--<Label Margin="0,9,0,0" Content="*" FontSize="30" Foreground="Red" Grid.Row="2" Grid.Column="2" HorizontalAlignment="Left" VerticalAlignment="Center" VerticalContentAlignment="Center"/>-->
39
40 <TextBlock Grid.Row="4" Grid.Column="0" Style="{StaticResource TextBlock_Grid}" Text="{Binding LanguagePack.UM_UserTelLabel,FallbackValue=联系电话：}" />
41 <TextBox Name="TelText" Style="{StaticResource textbox_Defalut}" Grid.Row="4" Grid.Column="1" Width="390" Margin="0,10,0,9" Text="{Binding Model.TEL}"/>
42
43 <TextBlock Grid.Row="5" Grid.Column="0" Style="{StaticResource TextBlock_Grid}" Text="{Binding LanguagePack.UM_UserEmileLabel,FallbackValue=邮箱地址：}" />
44 <TextBox Name="EmText" Style="{StaticResource textbox_Defalut}" Grid.Row="5" Grid.Column="1" Width="390" Margin="0,10,0,9" Text="{Binding Model.Email}"/>
45
46
47 </Grid>
后台代码
1 this.Grid_Form.AddHandler(TextBox.PreviewKeyDownEvent, new KeyEventHandler(CommonUI.TextBoxKeyDown));
2
3
4
5 /// <summary>
6 /// 文件框输入限制
7 /// </summary>
8 /// <param name="sender"></param>
9 /// <param name="e"></param>
10 public static void TextBoxKeyDown(object sender, KeyEventArgs e)
11 {
12 TextBox txt = (TextBox)e.OriginalSource;
13 TextBoxType textBoxType = ControlProperty.GetTB_Type(txt);
14 if (textBoxType != TextBoxType.String)
15 {
16 switch (textBoxType)
17 {
18 case TextBoxType.Double:
19 if (e.Key == Key.OemPeriod || e.Key == Key.Decimal)
20 {
21 if (txt.Text.Contains("."))
22 {
23 e.Handled = true;//不可输入
24 }
25 }
26 else if (!((e.Key >= Key.D0 && e.Key <= Key.D9) //大键盘0-9
27 || (e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) //小键盘0-9
28 || e.Key == Key.Delete || e.Key == Key.Enter
29 || e.Key == Key.Back || e.Key == Key.Tab
30 || e.Key == Key.Right || e.Key == Key.Left))
31 {
32 e.Handled = true;//不可输入
33 }
34 break;
35 case TextBoxType.Int:
36 if (!((e.Key >= Key.D0 && e.Key <= Key.D9) //大键盘0-9
37 || (e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) //小键盘0-9
38 || e.Key == Key.Delete || e.Key == Key.Enter
39 || e.Key == Key.Back || e.Key == Key.Tab
40 || e.Key == Key.Right || e.Key == Key.Left))
41 {
42 e.Handled = true;//不可输入
43 }
44 break;
45 }
46 }
47
48 }
"Grid_Form"为前端grid定义的Name,"TextBox.PreviewKeyDownEvent"要添加的事件，"new KeyEventHandler"不同事件，NEW不同的事件处理。
本文参考自https://www.cnblogs.com/YYkun/p/6871736.html
标签：控件,textBoxType,Key,TextBoxType,&&,txt,WPF,TEXTBOX,TextBox 来源： https://www.cnblogs.com/chensong0524/p/15378262.html