WPF自定义搜索框代码分享

首先下载搜索图标：

控件中的搜索图标下载地址：http://www.easyicon.net/1183666-Search_icon.html

搜索框设计过程比较简单：

1、先定义一个Rectangle作为背景

2、然后中间放TextBox输入，可以重写其中的模板。提示语Label放在模板中，可以在模板的触发器中控制隐藏显示~

3、搜索按钮-大家随便在网上下个就行了。

UserControl界面：

<UserControl x:Class="WpfApplication18.SearchControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"mc:Ignorable="d" MinHeight="30" MinWidth="150" Background="Transparent" d:DesignHeight="30" d:DesignWidth="150"><Grid><Grid.ColumnDefinitions><ColumnDefinition Width="15"></ColumnDefinition><ColumnDefinition Width="*"></ColumnDefinition><ColumnDefinition Width="36"></ColumnDefinition></Grid.ColumnDefinitions><Rectangle Grid.Column="0" Grid.ColumnSpan="3" Fill="LightGray" RadiusX="15" RadiusY="15" Opacity="0.8"></Rectangle><TextBox x:Name="TbxInput" Grid.Column="1" KeyDown="TbxInput_OnKeyDown"><TextBox.Template><ControlTemplate TargetType="TextBox"><Grid><TextBlock x:Name="Uc_TblShow" Text="请输入..." Foreground="Gray" Opacity="0.5" VerticalAlignment="Center" Visibility="Collapsed"></TextBlock><TextBox x:Name="Uc_TbxContent" Foreground="Gray" Background="Transparent" VerticalAlignment="Center" VerticalContentAlignment="Center" BorderThickness="0" Text="{Binding ElementName=TbxInput,Path=Text,Mode=TwoWay}" FontSize="18"></TextBox></Grid><ControlTemplate.Triggers><Trigger SourceName="Uc_TbxContent" Property="Text" Value=""><Setter TargetName="Uc_TblShow" Property="Visibility" Value="Visible"></Setter></Trigger><Trigger SourceName="Uc_TbxContent" Property="IsFocused" Value="True"><Setter TargetName="Uc_TblShow" Property="Visibility" Value="Collapsed"></Setter></Trigger></ControlTemplate.Triggers></ControlTemplate></TextBox.Template></TextBox><Button x:Name="BtnSearch" Grid.Column="2" Click="BtnSearch_OnClick" Cursor="Hand"><Button.Template><ControlTemplate TargetType="Button"><Grid><Image x:Name="Uc_Image" Source="1181298.png" Height="20" Width="20"></Image><ContentPresenter></ContentPresenter></Grid><ControlTemplate.Triggers><Trigger Property="IsMouseOver" Value="true"><Setter TargetName="Uc_Image" Property="Height" Value="25"></Setter><Setter TargetName="Uc_Image" Property="Width" Value="25"></Setter></Trigger></ControlTemplate.Triggers></ControlTemplate></Button.Template></Button></Grid></UserControl>

UserControl后台：

public partial class SearchControl : UserControl{public SearchControl（）{InitializeComponent（）;}public event EventHandler<SearchEventArgs> OnSearch; private void BtnSearch_OnClick（object sender, RoutedEventArgs e）{ExeccuteSearch（）;}private void TbxInput_OnKeyDown（object sender, KeyEventArgs e）{ExeccuteSearch（）;}private void ExeccuteSearch（）{if （OnSearch！=null）{var args=new SearchEventArgs（）;args.SearchText = TbxInput.Text;OnSearch（this, args）;}}}public class SearchEventArgs : EventArgs{public string SearchText { get; set; }}

直接引用就行了：<wpfApplication18:SearchControl></wpfApplication18:SearchControl>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。