扩展 WPF 工具包向导 - 为下一步按钮设置 IsDefault = true

Question

我使用Xceed的扩展 WPF 工具包创建了一个Wizard ，需要将 Next 按钮的IsDefault属性设置为true （按下Enter时单击按钮）。

我们有一个用户凭据页面，单击下一步按钮可验证凭据并执行其他操作。 我希望页面表现得像人们期望的那样，输入凭据并按Enter继续。 查看文档，似乎为内置按钮公开的唯一按钮属性是Visibility和Content 。 我不知道如何访问那些内置向导按钮上的按钮 Class 的所有其他可用属性。

Answer 1

Wizard控件不公开任何属性来设置默认按钮。 但是，您可以从 GitHub 复制默认样式，并像下面这样进行调整。 我为Next和Finish设置了IsDefault属性。

将此样式复制到任何父资源字典。 由于它是隐式风格，它将自动应用于 scope 中的所有Wizard 。 您也可以添加一个x:Key并明确引用它。

<Style TargetType="{x:Type xctk:Wizard}">
   <Style.Resources>
      <xctk:WizardPageButtonVisibilityConverter x:Key="WizardPageButtonVisibilityConverter"/>
   </Style.Resources>
   <Setter Property="Background" Value="Transparent" />
   <Setter Property="BorderBrush" Value="{DynamicResource {x:Static themes:ResourceKeys.ControlNormalBorderKey}}"/>
   <Setter Property="BorderThickness" Value="1" />
   <Setter Property="ItemsPanel">
      <Setter.Value>
         <ItemsPanelTemplate>
            <Grid/>
         </ItemsPanelTemplate>
      </Setter.Value>
   </Setter>
   <Setter Property="Template">
      <Setter.Value>
         <ControlTemplate TargetType="{x:Type xctk:Wizard}">
            <Border Background="{TemplateBinding Background}"
                             BorderBrush="{TemplateBinding BorderBrush}"
                             BorderThickness="{TemplateBinding BorderThickness}"
                             Padding="{TemplateBinding Padding}">
               <Grid>
                  <Grid.RowDefinitions>
                     <RowDefinition Height="*" />
                     <RowDefinition Height="Auto" />
                  </Grid.RowDefinitions>

                  <ContentPresenter Content="{Binding CurrentPage, RelativeSource={RelativeSource TemplatedParent}}" />

                  <Border Grid.Row="1"
                                   BorderBrush="{TemplateBinding BorderBrush}"
                                   BorderThickness="0,1,0,0"
                                   Padding="7">
                     <StackPanel>
                        <Grid>
                           <Grid.ColumnDefinitions>
                              <ColumnDefinition Width="Auto" />
                              <ColumnDefinition Width="*" />
                           </Grid.ColumnDefinitions>
                           <Button Name="HelpButton"
                                            Grid.Column="0"
                                            MinWidth="75"
                                            Command="xctk:WizardCommands.Help"
                                            Content="{TemplateBinding HelpButtonContent}">
                              <Button.Visibility>
                                 <MultiBinding Converter="{StaticResource WizardPageButtonVisibilityConverter}">
                                    <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                      Path="HelpButtonVisibility"/>
                                    <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                      Path="CurrentPage.HelpButtonVisibility"/>
                                 </MultiBinding>
                              </Button.Visibility>
                           </Button>
                           <StackPanel Grid.Column="1"
                                                Orientation="Horizontal"
                                                HorizontalAlignment="Right">
                              <Button Name="BackButton"
                                               MinWidth="75"
                                               Command="xctk:WizardCommands.PreviousPage"
                                               Content="{TemplateBinding BackButtonContent}">
                                 <Button.Visibility>
                                    <MultiBinding Converter="{StaticResource WizardPageButtonVisibilityConverter}">
                                       <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                         Path="BackButtonVisibility"/>
                                       <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                         Path="CurrentPage.BackButtonVisibility"/>
                                    </MultiBinding>
                                 </Button.Visibility>
                              </Button>
                              <Grid MinWidth="75"
                                             Margin="2,0,0,0">
                                 <Button Name="NextButton"
                                                  IsDefault="True"
                                                  Command="xctk:WizardCommands.NextPage"
                                                  Content="{TemplateBinding NextButtonContent}">
                                    <Button.Visibility>
                                       <MultiBinding Converter="{StaticResource WizardPageButtonVisibilityConverter}">
                                          <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                            Path="NextButtonVisibility"/>
                                          <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                            Path="CurrentPage.NextButtonVisibility"/>
                                       </MultiBinding>
                                    </Button.Visibility>
                                 </Button>
                                 <Button Name="FinishButton"
                                                  IsDefault="True"
                                                  Command="xctk:WizardCommands.Finish"
                                                  Content="{TemplateBinding FinishButtonContent}">
                                    <Button.Visibility>
                                       <MultiBinding Converter="{StaticResource WizardPageButtonVisibilityConverter}">
                                          <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                            Path="FinishButtonVisibility"/>
                                          <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                            Path="CurrentPage.FinishButtonVisibility"/>
                                       </MultiBinding>
                                    </Button.Visibility>
                                 </Button>
                              </Grid>
                              <Button Name="CancelButton"
                                               Margin="7,0,0,0"
                                               MinWidth="75"
                                               Command="xctk:WizardCommands.Cancel"
                                               Content="{TemplateBinding CancelButtonContent}">
                                 <Button.Visibility>
                                    <MultiBinding Converter="{StaticResource WizardPageButtonVisibilityConverter}">
                                       <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                         Path="CancelButtonVisibility"/>
                                       <Binding RelativeSource="{RelativeSource TemplatedParent}"
                                                         Path="CurrentPage.CancelButtonVisibility"/>
                                    </MultiBinding>
                                 </Button.Visibility>
                              </Button>
                           </StackPanel>
                        </Grid>
                     </StackPanel>
                  </Border>
               </Grid>
            </Border>
            <ControlTemplate.Triggers>
               <Trigger Property="IsEnabled" Value="True" SourceName="FinishButton">
                  <Setter Property="Visibility" Value="Visible" TargetName="FinishButton"/>
               </Trigger>
            </ControlTemplate.Triggers>
         </ControlTemplate>
      </Setter.Value>
   </Setter>
</Style>

如果您需要更灵活的方法，则必须创建一个从Wizard派生的自定义控件，该控件公开一个依赖属性，例如按钮的枚举类型，以便能够指定默认按钮。 然后，您可以在控件中获取模板部分（按钮）并在依赖属性的属性更改回调中相应地设置它们的IsDefault属性。