WPF and Expression Blend development example: a digital input box for style implementation, wpfblend

WPF and Expression Blend development example: a digital input box for style implementation, wpfblend

Today, we have a very odd method of obscenity, which is rarely used. We do not recommend that you use it too frequently.

First style:

<Style x:Key="NumberTextBox" TargetType="{x:Type FrameworkElement}">            <EventSetter Event="PreviewTextInput" Handler="TextBox_TextInput"/>            <Setter Value="False" Property="InputMethod.IsInputMethodEnabled"/>        </Style>        <x:Code>            <![CDATA[                private void TextBox_TextInput(object sender, TextCompositionEventArgs e)                {                    bool flag = true;                    foreach (char c in e.Text)                    {                        if (c < '0' || c > '9')                        {                            flag = false;                        }                    }                    e.Handled = !flag;                }            ]]>        </x:Code>

In fact, there is only one core, namely writing code in xaml.

X: Code Msdn Introduction

Reference style:

<TextBox Height="20" Width="200" Margin="10,0" Style="{StaticResource NumberTextBox}"/>

Source code download:

Http://files.cnblogs.com/youngytj/TextBoxStyle.rar