RichTextBox的“开始"与其文本之间的距离 [英] Getting distance between between 'start' of RichTextBox and its text

问题描述

我需要知道文本开头的位置RichTextBox.我将border，margin和padding设置为0，但位置仍然错误.见

<Window x:Class="TWPF.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:TWPF"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="500">
    <Canvas UseLayoutRounding="True">
        <RichTextBox Name="RTB" Border="0" Margin="0" Padding="0" Width="500">
            <FlowDocument PageWidth="{Binding ElementName=RTB, Path=ActualWidth}">
                <Paragraph TextIndent="-10" Margin="10,0,0,0" Padding="0" FontSize="9">
                    123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123
                </Paragraph>
            </FlowDocument>
        </RichTextBox>

        <Line X1="0" Y1="0" X2="0" Y2="50" Stroke="Red" StrokeThickness="1" />
        <Line X1="10" Y1="0" X2="10" Y2="50" Stroke="Red" StrokeThickness="1" />
    </Canvas>
</Window>

推荐答案

删除段落边距:

<FlowDocument PageWidth="{Binding ElementName=RTB, Path=ActualWidth}">
                <Paragraph TextIndent="-10" Margin="0" Padding="0" FontSize="9">
                    123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123123 123 123 123
                </Paragraph>
            </FlowDocument>

，对于全部左缩进，也请删除TextIndent.

and for total left indentation remove TextIndent also.

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