WPF 窗口自适应

窗口自适应就是说，当主窗口缩放的时候，内部的控件位置自动的调整，而不是隐藏掉。这主要依赖于Grid布局。

1.比如这个groupbox 本身是在一个Grid的Row中的。缩放之后，左边的button不见了。

开始：

WPF 窗口自适应

缩放之后：

WPF 窗口自适应

   <GroupBox Name="EmailGroupBox" Grid.Row="1" Grid.Column="0" Header="电子邮件" Margin="0,10,10,10" >
                    <StackPanel Name="Panel"  Orientation="Horizontal">
                        <Grid Name="MinGrid" Width="{Binding ElementName=Panel, Path=ActualWidth}">
                            <Grid.RowDefinitions>
                                <RowDefinition MinHeight="20" Height="Auto"></RowDefinition>
                                <RowDefinition MinHeight="1" Height="*"></RowDefinition>
                            </Grid.RowDefinitions>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition MinWidth="60" Width="Auto"></ColumnDefinition>
                                <ColumnDefinition Width="*" MinWidth="100"></ColumnDefinition>
                                <ColumnDefinition MinWidth="70" Width="Auto" ></ColumnDefinition>
                            </Grid.ColumnDefinitions>
                            <Label Grid.Row="0" Grid.Column="0"  HorizontalAlignment="Left" >邮件地址：</Label>
                            <TextBox   TabIndex="1"  Grid.Row="0" Grid.Column="1" MinWidth="100"  Text="{Binding ServerEmailAddress, UpdateSourceTrigger=LostFocus}"  HorizontalAlignment="Stretch"  VerticalContentAlignment=                            "Center"></TextBox>
                            <Button  Grid.Row="0"  TabIndex="2" Grid.Column="2" HorizontalAlignment="Stretch"  Margin="5 0 5 0"  Click="EmailConfigButton_Click">设置</Button>
                        </Grid>

                    </StackPanel>
                </GroupBox>

拿掉 StackPanel就可以缩放(本身也是多余的代码)。最小宽高都可以省略。因为这里的最小宽度无法阻挡主窗口的缩放，最小宽高直接放到子控件上面就行，不必放在Row或col上面。 2个row也是多余修改之后：

   <GroupBox Name="EmailGroupBox" Grid.Row="1" Grid.Column="0" Header="电子邮件" Margin="0,10,10,10" >
                    <Grid Name="MinGrid" Width="{Binding ElementName=Panel, Path=ActualWidth}">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition />
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>
                        <Label Grid.Row="0" Grid.Column="0"  HorizontalAlignment="Left" >邮件地址：</Label>
                        <TextBox   TabIndex="1"  Grid.Row="0" Grid.Column="1" MinWidth="100"  Text="{Binding ServerEmailAddress, UpdateSourceTrigger=LostFocus}"  HorizontalAlignment="Stretch"  VerticalContentAlignment="Center"></TextBox>
                        <Button  Grid.Row="0"  TabIndex="2" Grid.Column="2" HorizontalAlignment="Stretch"  Margin="5 0 5 0"  Click="EmailConfigButton_Click">设置</Button>
                    </Grid>
                </GroupBox>

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