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网上看到的都是在一个界面上使用同一个按钮实现界面切换，这里我来做个不同界面上的不同按钮实现界面切换。如下图：
可以看到右下角有个“查询数据”按钮，当点击查询按钮时切换到另一个界面，如下图：
虽然长得很像，但它们绝不是同一个按钮，当点击返回查询时，将回到前面的界面。
代码如下：
第一个界面叫DataManage，其xmal：
<UserControl x:Class="MyControlLibrarys.DataManage"
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" Margin="10 0"
d:DesignHeight="600" d:DesignWidth="850" Loaded="UserControl_Loaded">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/GeneralStyle;component/Themes/Generic.xaml" />
<ResourceDictionary Source="pack://application:,,,/GeneralStyle;component/Themes/DataGrid.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="auto"/>
<RowDefinition Height="120"/>
</Grid.RowDefinitions>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition Height="auto"/>
<RowDefinition Height="auto"/>
<RowDefinition Height="auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="3*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Label Content="查询条件" Grid.Column="0" FontSize="20" VerticalContentAlignment="Bottom" HorizontalContentAlignment="Right"/>
<CheckBox Grid.Row="1" Grid.Column="0" Name="uut_nameChebox" Content="UUT类型" FontSize="16" HorizontalAlignment="Right" Margin="0 10" Unchecked="Check_Unchecked"></CheckBox>
<ComboBox Grid.Row="1" Grid.Column="1" Name="uut_nameCombox" FontSize="14" Margin="10" Background="Transparent" DropDownClosed="Combox_DropDownClosed"/>
<CheckBox Grid.Row="2" Grid.Column="0" Name="uut_kindChebox" Content="UUT型号" FontSize="16" HorizontalAlignment="Right" Margin="0 10" Unchecked="Check_Unchecked"></CheckBox>
<ComboBox Grid.Row="2" Grid.Column="1" Name="uut_kindCombox" FontSize="14" Background="Transparent" Margin="10" DropDownClosed="Combox_DropDownClosed"/>
<CheckBox Grid.Row="1" Grid.Column="2" Name="timeChebox" Content="操作时间" FontSize="16" HorizontalAlignment="Right" Margin="0 10" Unchecked="Check_Unchecked"></CheckBox>
<Label Content="从" Grid.Row="1" Grid.Column="3" FontSize="16" HorizontalContentAlignment="Right" VerticalContentAlignment="Center"></Label>
<DatePicker Grid.Row="1" Grid.Column="4" Name="timeStatCombox" FontSize="14" Background="Transparent" Margin="0 10" CalendarClosed="DatePicker_CalendarClosed"/>
<Label Content="到" Grid.Row="1" Grid.Column="5" FontSize="16" HorizontalContentAlignment="Right" VerticalContentAlignment="Center"></Label>
<DatePicker Grid.Row="1" Grid.Column="6" Name="timeEndCombox" FontSize="14" Background="Transparent" Margin="0 10" CalendarClosed="DatePicker_CalendarClosed"/>
<CheckBox Grid.Row="2" Grid.Column="2" Name="userChebox" Content="操 作 员 " FontSize="16" HorizontalAlignment="Right" Margin="0 10" Unchecked="Check_Unchecked"></CheckBox>
<ComboBox Grid.Row="2" Grid.Column="4" Name="userCombox" FontSize="14" Background="Transparent" Margin="0 10" DropDownClosed="Combox_DropDownClosed"/>
<StackPanel Orientation="Horizontal" Grid.Row="2" Grid.Column="5" Grid.ColumnSpan="4" HorizontalAlignment="Center">
<Button Content="重置" Style="{DynamicResource TeamviwerButtonStyle}" Width="100" Height="35" Margin="20 0" Click="Reset_Click"/>
<Button Content="查询" Style="{DynamicResource TeamviwerButtonStyle}" Width="100" Height="35" Margin="10 0" Click="ConditionQuery_Click"/>
</StackPanel>
<Separator Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="9" Margin="20 5 20 20"/>
</Grid>
<DataGrid Grid.Row="1" ColumnHeaderStyle ="{DynamicResource DataGridColumnHeaderStyle}" Name="dgData" AutoGenerateColumns="False" CanUserAddRows="False"
GridLinesVisibility="All" MouseDoubleClick="dgData_MouseDoubleClick">
<DataGrid.Columns>
<DataGridTextColumn Width="0.5*" Header="序号" ElementStyle="{StaticResource contentCenterStyle}" Binding="{Binding Path=OrderId, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></DataGridTextColumn>
<DataGridTextColumn Header="测试编号" Width="*" Binding="{Binding Path=id, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Visibility="Hidden"></DataGridTextColumn>
<DataGridTextColumn Header="UUT" Width="*" Binding="{Binding Path=uut_name, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" ></DataGridTextColumn>
<DataGridTextColumn Header="UUT型号" Width="*" Binding="{Binding Path=uut_kind, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" ></DataGridTextColumn>
<DataGridTextColumn Header="UUT编号" Width="*" Binding="{Binding Path=uut_num, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" ></DataGridTextColumn>
<DataGridTextColumn Header="操作员" Width="*" Binding="{Binding Path=user, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" ></DataGridTextColumn>
<DataGridTextColumn Header="测试时间" Width="2*" Binding="{Binding Path=time,StringFormat='{}{0:yyy-MM-dd HH:mm:ss}', Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></DataGridTextColumn>
<DataGridTextColumn Header="备注" Width="*" Binding="{Binding Path=remark, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
<StackPanel Grid.Row="2" Name="ClipCtrlStackPanel" Margin="0 0 0 20"></StackPanel>
<StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Right">
<Button Content="查看数据" Style="{DynamicResource TeamviwerButtonStyle}" Width="120" Height="40" Margin="20 0" Click="CatData_Click"/>
<Button Content="删除数据" Style="{DynamicResource TeamviwerButtonStyle}" Width="120" Height="40" Margin="20 0" Click="DelData_Click"/>
</StackPanel>
</Grid>
</UserControl>
后台代码：
在命名空间下定义个委托：
public delegate void CtrlSwitchHandler(); //定义委托然后，定义事件，并在点击查看数据时触发事件：
public event CtrlSwitchHandler CtrlSwitchEvent; //定义事件,用于界面切换
/// <summary>
/// 查看数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void CatData_Click(object sender, RoutedEventArgs e)
{
if (this.dgData.SelectedItem == null)
{
MyDialog md = new MyDialog(1, "未选择需要查看的对象，请选择！");
md.Show();
}
else
{
Result_NumStr = ((DataRowView)this.dgData.SelectedItem).Row["id"].ToString();
if(Result_NumStr != "")
{
//触发事件改变父窗口的值
if (CtrlSwitchEvent != null)
{
CtrlSwitchEvent();
}
}
else
{
MyDialog md = new MyDialog(1, "不允许查看空值！");
md.Show();
}
}
}返回查询原理一样的，我这里界面名叫CatDataControl，在下面有用到，只是不要再定义委托了，这里就不讲述。
最后用一个UserControl装载这两个控件，也可以直接用mainwindow装载，我这里是项目需要，故使用UserControl控件，实现切换代码如下：
xaml：
<UserControl x:Class="MyControlLibrarys.SwitchInterface"
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"
d:DesignHeight="300" d:DesignWidth="350" Loaded="SwInterface_Load">
<Grid>
<StackPanel Name="stackPanelData"></StackPanel>
</Grid>
</UserControl>后台代码：
public partial class SwitchInterface : UserControl
{
public SwitchInterface()
{
InitializeComponent();
}
DataManage dataManage = new DataManage(); //用于切换的用户控件--数据管理控件
private double originalHeight = 0.0;
private void SwInterface_Load(object sender, RoutedEventArgs e)
{
originalHeight = stackPanelData.ActualHeight;
dataManage.CtrlSwitchEvent += new CtrlSwitchHandler(CtrlSwitch_CatData);
LoadStackPanelRight(dataManage);
}
//实现界面切换到查看数据界面
private void CtrlSwitch_CatData()
{
CatDataControl catData = new CatDataControl(dataManage.Result_NumStr); //用于切换的用户控件--查看数据控件
catData.CtrlSwitchEvent += new CtrlSwitchHandler(CtrlSwitch_dataManage);
LoadStackPanelRight(catData);
}
//实现界面切换到数据管理界面
private void CtrlSwitch_dataManage()
{
LoadStackPanelRight(dataManage);
}
//加载用户控件功能函数
private void LoadStackPanelRight(UserControl userControl)
{
stackPanelData.Children.Clear();
stackPanelData.Children.Add(userControl);
}
}如此即可实现，这里面的代码不是每个都有用，这只是部分代码，但绝对能实现界面切换。