c# - Logic of RichTextBox.Paste() method

Question

What is the internal logic of RichTextBox.Paste() method which pastes data from clipboard to RichTextBox. Actually I want to add text to RichTextBox at the location where cursor is there on button click. But when I add text the added text is either selected after addition or the cursoe location is at the start of added text.

Any solution for this ?

Answer 1

我认为您不需要知道控件的 .NET 实现。它是你我的“黑匣子”。但是，您可以取消选择并将光标移动到文本的末尾（这 2 件事会打扰您，不是吗？）

将光标移动到位置 0（开始）：

richTextBox1.Select(0, 0);

移动到最后：

richTextBox1.Select(richTextBox1.Text.Length, 0);

选择所有文本：

richTextBox1.Select(0, richTextBox1.Text.Length);

取消全选并移到最后：

richTextBox1.Select(richTextBox1.Text.Length, richTextBox1.Text.Length);