Jun 26, 2012

How to Create Button in .NET

Today, I will focus on how to create button in .NET. As we all know that a user control can be created in both design-time and run-time.

Create button at design-time
This is not the point of this post, as we all know: To create a button control at design-time, you simply drag and drop a Label control from Toolbox to a Form. After you drag and drop a Label on a Form. After then you can move it around and resize it using mouse and set its properties and events.

Create button at run-time
This is the focus of my post. To dinamicly create a button in .NET
1. Create an instance of Button class
     Button dynamicButton = new Button();
2. Set Button class properties
    dynamicButton.Location = new Point(30, 70);
    dynamicButton.Height = 50;
    dynamicButton.Width = 300;
    // Set background and foreground
    dynamicButton.BackColor = Color.Red;
    dynamicButton.ForeColor = Color.Blue;
    dynamicButton.Text = "I am Dynamic Button";
    dynamicButton.Name = "DynamicButton";
    dynamicButton.Font = new Font("Georgia", 16);
3. Add Button control
     A Button control is used to process the button click event. We can attach a button click event handler at run-time by setting its Click event to an EventHandler obect. The EventHandler takes a parameter of an event handler. The Click event is attached in the following code snippet.

// Add a Button Click Event handler
dynamicButton.Click += new EventHandler(DynamicButton_Click);

Now the last step is adding a Button control to the Form. The Form.Controls.Add method is used to add a control to a Form. The following code snippet adds a Button control to the current Form.


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