How to Add Text in the RichTextBox in C#?
In C#, RichTextBox control is a textbox which gives you rich text editing controls and advanced formatting features also includes a loading rich text format (RTF) files. Or in other words, RichTextBox controls allows you to display or edit flow content, including paragraphs, images, tables, etc. In RichTextBox, you are allowed to add text in the RichTextBox control which displays on the screen using Text Property. You can set this property in two different ways:
1. Design-Time: It is the easiest way to add text in the RichTextBox as shown in the following steps:
- Step 1: Create a windows form as shown in the below image:
Visual Studio -> File -> New -> Project -> WindowsFormApp
- Step 2: Drag the RichTextBox control from the ToolBox and drop it on the windows form. You are allowed to place a RichTextBox control anywhere on the windows form according to your need.
- Step 3: After drag and drop you will go to the properties of the RichTextBox control to add text in the RichTextBox control.
Output:
2. Run-Time: It is a little bit trickier than the above method. In this method, you can add text in the RichTextBox control programmatically with the help of given syntax:
public override string Text { get; set; }
Here, the value of this property is of System.String type. The following steps show how to set the Text property of the RichTextBox dynamically:
- Step 1: Create a RichTextBox using the RichTextBox() constructor is provided by the RichTextBox class.
// Creating RichTextBox using RichTextBox class constructor RichTextBox rbox = new RichTextBox();
- Step 2: After creating RichTextBox, set the Text property of the RichTextBox provided by the RichTextBox class.
// Adding text in the control box rbox.Text = "!..Welcome to w3wiki..!";
- Step 3: And last add this RichTextBox control to the form using Add() method.
// Add this RichTextBox to the form this.Controls.Add(rbox);
Example:
using
System;
using
System.Collections.Generic;
using
System.ComponentModel;
using
System.Data;
using
System.Drawing;
using
System.Linq;
using
System.Text;
using
System.Threading.Tasks;
using
System.Windows.Forms;
namespace
WindowsFormsApp30 {
public
partial
class
Form1 : Form {
public
Form1()
{
InitializeComponent();
}
private
void
Form1_Load(
object
sender, EventArgs e)
{
// Creating and setting the
// properties of the label
Label lb =
new
Label();
lb.Location =
new
Point(251, 70);
lb.Text =
"Enter Text"
;
// Adding this label in the form
this
.Controls.Add(lb);
// Creating and setting the
// properties of RichTextBox
RichTextBox rbox =
new
RichTextBox();
rbox.Location =
new
Point(236, 97);
rbox.ForeColor = Color.Red;
rbox.Text =
"!..Welcome to w3wiki..!"
;
// Adding this RichTextBox in the form
this
.Controls.Add(rbox);
}
}
}
Output: