如何在wpf文本框中分离背景图像？ [英] how to separate the background image in wpf textbox?

问题描述

我是WPF的新手。在我的项目中，我已尝试使用usericon的用户名文本框。

I am new to WPF. In my project i have tried user name textbox box with usericon.

我的XAML代码： -

My XAML Code:-

> <TextBox Height="30" Width="180" Margin="67,123,256,158">
>             <TextBox.Background>
>                 <ImageBrush  ImageSource="Images/User.png" Stretch="None" AlignmentX="Left" AlignmentY="Center" />
>             </TextBox.Background>
>         </TextBox>

但是当我输入用户名时，文本框光标从左端开始，两个或三个字母不可见，它看起来很难看。 （见图）我如何在文本框中分隔这个背景图片。

But when i type the user name, text-box cursor starts from the left end, two or three letters are not visible and its looking ugly. (see the image) How i can separate this background image in textbox.

编辑1-

>  <Canvas>
>         <DockPanel Canvas.Left="115" Canvas.Top="64">
>             <Button BorderThickness="0" DockPanel.Dock="Left" HorizontalAlignment="Right" Height="28" Width="23">
>                 <Button.Background>
>                     <ImageBrush  ImageSource="Images/User.png" Stretch="None" AlignmentX="Left" AlignmentY="Center" />
>                 </Button.Background>
>             </Button>
>             <TextBox Height="28" Width="115" HorizontalAlignment="Stretch" Background="Transparent"/>
>         </DockPanel>
>         </Canvas>

我已根据建议尝试过。但问题是按钮和文本框是分开显示的。它看起来不像texbox中的用户图标。当我将光标移动到按钮时，用户图标不可见。帮助我改进我的代码..

I have tried as per the suggestion. But the problem is the button and text box are shows separate. It not look like user icon in texbox. And when i move the cursor to button, the usericon has invisible. help me to improve my code..

编辑2答案： -

在网格中添加以下代码Button Hover效果禁用的资源。

Add the below code in grid resource for Button Hover Effect Disable.

<Style x:Key="ButtonWithoutHover" TargetType="Button">
                <Setter Property="OverridesDefaultStyle" Value="True"/>
                <Setter Property="Margin" Value="0"/>
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="Button">
                            <Border Name="border" 
                            BorderThickness="0"                                                        
                            Background="{TemplateBinding Background}">
                                <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
                            </Border>
                            <ControlTemplate.Triggers>
                                <Trigger Property="IsMouseOver" Value="True">
                                    <Setter TargetName="border" Property="BorderBrush" Value="Black" />
                                </Trigger>
                            </ControlTemplate.Triggers>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>     

并将此添加到wpf窗口XAML

And Add this to wpf window XAML

<Canvas >
            <Border BorderThickness="2" BorderBrush="DarkBlue" Canvas.Left="307" Canvas.Top="65">
            <DockPanel Canvas.Left="115" Canvas.Top="30">
                <Button Style="{StaticResource ButtonWithoutHover}" BorderThickness="0" DockPanel.Dock="Left" HorizontalAlignment="Right" Height="28" Width="23">
                    <Button.Background>
                        <ImageBrush  ImageSource="Images/User.png" Stretch="None" AlignmentX="Left" AlignmentY="Center" />
                    </Button.Background>
                </Button>
                <TextBox FontSize="20"  BorderThickness="0" Height="28" Width="115" HorizontalAlignment="Stretch" Background="Transparent"/>
            </DockPanel>
            </Border>           
        </Canvas>

推荐答案

你可以看一下Asryael对这个问题。
它无需编辑任何模板即可解决类似问题。
Asryael的解决方案确实需要一些额外的造型。

You could take a look at Asryael's answer on this question. It solves a similar issue without having to edit any templates. Asryael's solution does require some extra styling.

您还可以尝试以下操作，只需添加一些填充：

You could also try the following, it simply adds some padding:

<TextBox Padding="16,2" Width="115" Height="28">
    <TextBox.Background>
        <ImageBrush ImageSource="Images/User.png" Stretch="None" AlignmentX="Left"/>
    </TextBox.Background>
</TextBox>

这篇关于如何在wpf文本框中分离背景图像？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！