如何获取和设置的WPF文本框的当前光标位置 [英] how to get and set current cursor position of WPF textbox

问题描述

我想从一个WPF文本框当前光标位置。如果文本框包含文本阿布舍克键，光标后的 ABHI 然后我想该索引，以便以后有问题地清除文本框，并指派其他一些或相同的文字后成问题，我想刚过4个字符，使光标闪烁。

I want to get the current cursor position from a WPF TextBox. If a TextBox contains text abhishek and cursor is blinking after abhi then i want that index, so that later after clearing textbox problematically and assigning some other or same text problematically i want to make the cursor blink just after 4 characters.

我试图获取光标位置，

_tempFuncName = txtFunctionName.Text;
_cursorPosition =  txtFunctionName.SelectionStart;
_selectionLength = txtFunctionName.SelectionLength;

和调回从其他事件这样的一些后期阶段，

And set back at some later stage from other event like this,

txtFunctionName.Text = _tempFuncName;
txtFunctionName.SelectionStart = _cursorPosition;
txtFunctionName.SelectionLength  = _selectionLength;

下面突出的变量是页面级变量。

Here underscore variables are page level variables.

这code不工作。有一些其他的方法呢？

This code is not working. Is there some other approach?

推荐答案

您可以用文本框caretIndex属性发挥

You can play with caretindex property of a text box

//You can set this property on some event
NumberOfDigits.CaretIndex = textbox.Text.Length;

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