How to Change Label Text in C#

• Creating a Windows Forms Application

  Start by creating a new Windows Forms Application project in Visual Studio. This will provide you with a blank form on which you can add a button and a label.

• Adding a Button and a Label

  Drag and drop a button and a label from the toolbox onto the form. You can position and resize them as needed.

• Naming Controls

  It’s essential to give meaningful names to your controls. In the Properties window, find the Name property and provide a descriptive name.

  In this case, we add 3 buttons from the left list view named Toolbox and name the buttons HelloFolksbtn, startlearningbtn, and betterpersonbtn, respectively.

  Now, write a text on the button that you want to show on the label; for example, see the image below.

  

• Writing the Button Click Event Handler

  Double-click on the Hello Folks! button to generate a click event handler. This will automatically create a method in your code-behind file and write code in this event like this.

  private void HelloFolksbtn_Click(object sender, EventArgs e) {
    changetext.Text = "Hi Folks!";
  }
  

  The label’s name where the text will appear is changetext.

  Generate the startlearningbtn_Click event by double-clicking on the Lets Start Learning button and write the following line of code.

  private void startlearningbtn_Click(object sender, EventArgs e) {
    changetext.Text = "Lets Start Learning";
  }
  

  At last, create the betterpersonbtn_Click event by double-clicking on the Learn to be a better person button and writing this code.

  private void betterpersonbtn_Click(object sender, EventArgs e) {
    changetext.Text = "Learn to be a better person";
  }
  

• Adding the Libraries Needed

  Add the following libraries that we need on the topmost part of the code.

  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;
  

Full source code:

```c#
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 change_label_text {
  public partial class Form1 : Form {
    public Form1() {
      InitializeComponent();
    }

    private void HelloFolksbtn_Click(object sender, EventArgs e) {
      changetext.Text = "Hi Folks!";
    }

    private void startlearningbtn_Click(object sender, EventArgs e) {
      changetext.Text = "Lets Start Learning";
    }

    private void betterpersonbtn_Click(object sender, EventArgs e) {
      changetext.Text = "Learn to be a better person";
    }
  }
}
```

After clicking on the `Hello Folks!` button, the label text will change at runtime, and you will have the following output.

![output of the changing label text](</img/Csharp/output-of-the-changing-label-text.webp>)

• Creating a Windows Forms Application

  Begin by creating a new Windows Forms Application project in Visual Studio. This will provide you with a blank form where you can add a label.

• Adding a Label

  Drag and drop a label from the toolbox onto the form. Position and resize it as needed.

• Naming the Label

  Give a meaningful name to your label. In the Properties window, locate the Name property and provide a descriptive name (e.g., lblDisplay).

• Writing the Direct Assignment Code

  The direct assignment involves directly setting the Text property of the label.

  lblDisplay.Text = "New Label Text";
  

  In this code, the lblDisplay is the name of the label control. The Text is the property responsible for displaying text in the label, and the "New Label Text" is the new text you want to display.

• Testing the Application

  Build and run the application. You should observe the label text changing to "New Label Text" immediately.

• Open your Form in Design View

  In Visual Studio, double-click the form file (Form1.cs) to open it in the designer.

• Locate the Toolbox

  The Toolbox is usually on the left-hand side of the Visual Studio window. If it’s not visible, you can find it in the View menu.

• Find the Timer Control

  Scroll through the Toolbox until you find the Timer control. It looks like a clock.

• Drag and Drop the Timer

  Click and drag the Timer control onto your form. You’ll see it appear in the tray at the bottom of the form designer.

• Configure the Timer

  Select the timer and go to the Properties window. Here, you can set properties like Interval (the time between ticks) and Enabled (whether the timer starts ticking immediately).