Summary of common methods of C # textbox

When we use C # textbox for development operations, we often encounter the use of C # textbox, then C # textbox Use There are some common skills? such as C # TextBox wrapping processing, in fact, is a number of common operations, then here to introduce you a few of our common needs and solutions.

First, on the C # TextBox selection of the judgment:

1. int  selectlength= this . Textbox1.selectionlength;//Gets the selected character length   
2.  
3. if   ( selectlength ==  this . TextBox1.Text.Length)  {//determines whether to select all   
4. messagebox.show ( ";  
5.  

Ii. about C # textbox wrapping, setting cursor position, scrolling with text

C # TextBox Line wrapping

1. Textboxcontrol.text + = Environment.NewLine;

How do I wrap text when I write in a multi-line textbox? Because of the Windows system, the carriage return takes two characters. So the method is to use \ r \ n tags, such as

1. label="Calculation " ": ... sum\r\n ";
2. Textbox.appendtext (Label);

Another way to do this is to use the Environment.NewLine method, which is compatible with Windows and Linux systems.

C # textbox Sets the cursor position to the end of the text

1. Textboxcontrol.selectionstart = Textboxcontrol.textlength;

C # textbox scrolls with text

1. Textboxcontrol.scrolltocaret ();

How do I scroll through a multi-line textbox to automatically scroll to the last line after I add text? The method is to use the Scrolltocaret method to automatically scroll to the position of the caret, such as:

1. Textbox.appendtext (Label);
2. Textbox.scrolltocaret ();

The contents of the common operations of C # TextBox are introduced here, which hopefully helps you understand and learn about the use of C # textbox.

Summary of common methods of C # textbox