同步列表框滚动和文本框/文本块控件WPF [英] Synchronize Scroll of Listbox and Textbox/TextBlock control WPF

问题描述

我正在尝试创建一个WPF Usercontrol，其中有三个控件



-ListBox



-TextBox或Textblock



-ScrollBar



我希望同步所有这些之间的滚动。< br $>

I am trying to create a WPF Usercontrol where there are three controls

-ListBox

-TextBox or Textblock

-ScrollBar

I wish to synchronize the scrolling between all of them.

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="100"></ColumnDefinition>
        <ColumnDefinition Width="Auto"></ColumnDefinition>
        <ColumnDefinition Width="20*" />
    </Grid.ColumnDefinitions>

    <ListBox Grid.Column="0" HorizontalAlignment="Left" Name="lstNumber" Width="100" FontFamily="Courier New" FontSize="12" Background="Aqua" ScrollViewer.HorizontalScrollBarVisibility="Hidden" ScrollViewer.VerticalScrollBarVisibility="Hidden" ScrollViewer.ScrollChanged="RichTextBox_ScrollChanged"/>
    <TextBox Grid.Column="1" HorizontalAlignment="Stretch" Name="txtData" Width="Auto" FontFamily="Courier New" FontSize="12" Margin="101,0,0,0" ScrollViewer.HorizontalScrollBarVisibility="Hidden" ScrollViewer.VerticalScrollBarVisibility="Hidden" ScrollViewer.ScrollChanged="RichTextBox_ScrollChanged"/>
    <ScrollBar Grid.Column="3" HorizontalAlignment="Right" Scroll="ScrollBar_Scroll"/>
</Grid>

< br $>










相关C＃代码对于活动。

Related C# Code for the event.

private void RichTextBox_ScrollChanged(object sender, ScrollChangedEventArgs e)
    {
        if (sender == txtData)
        {
            //what to do now?
        }
        if (sender == lstNumber)
        {
            //what to do now?
        }
    }

如何实现此功能？

推荐答案

我试图像代码编辑器一样显示文本文件。哪里必须有3件东西



- 行号

- 当我在整个加载的文件中选择一个文本时，突出显示类似的文字。

- 滚动时，单独的滚动条必须可用

- 向上和向下，Pg Up&Pg Down，键盘上的Home&End键应该用于滚动。

I am trying to show a text file like a code editor. Where 3 things must be available

- Line number
- Highlight similar text, when I select a text in the whole loaded file.
- for scrolling, separate scrollbar must be available
- Up & down, Pg Up & Pg Down, Home & End Key from keyboard should function for scrolling.

你可以使用User32滚动





Const WM_USER As Integer =& H400

Const EM_GETSCROLLPOS As Integer = WM_USER + 221

Const EM_SETSCROLLPOS As Integer = WM_USER + 222



声明函数SendMessage Libuser32 .dllAliasSendMessageW（ByVal hWnd As IntPtr，ByVal msg As Integer，ByVal wParam As Integer，ByRef lParam As Point）As Integer



Private Sub RichTextBox2_VScroll（ ByVal sender As System.Object，ByVal e As System.EventArgs）处理RichTextBox2.VScroll



Dim pt As Point



SendMessage（RichTextBox2.Handle，EM_GETSCROLLPOS，0，pt）



SendMessage（RichTextBox1.Handle，EM_SETSCROLLPOS，0，pt）



End Sub

You can use the scroll using User32


Const WM_USER As Integer = &H400
Const EM_GETSCROLLPOS As Integer = WM_USER + 221
Const EM_SETSCROLLPOS As Integer = WM_USER + 222

Declare Function SendMessage Lib "user32.dll" Alias "SendMessageW" (ByVal hWnd As IntPtr, ByVal msg As Integer, ByVal wParam As Integer, ByRef lParam As Point) As Integer

Private Sub RichTextBox2_VScroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RichTextBox2.VScroll

Dim pt As Point

SendMessage(RichTextBox2.Handle, EM_GETSCROLLPOS, 0, pt)

SendMessage(RichTextBox1.Handle, EM_SETSCROLLPOS, 0, pt)

End Sub

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