Как добавить кнопку windows form

If AutoEllipsis property is true, it adds ellipsis character to a control if text in control does not fit. You may have to set AutoSize to false to see the ellipses character.

Image in Button

The Image property of a Button control is used to set a button background as an image. The Image property needs an Image object. The Image class has a static method called FromFile that takes an image file name with full path and creates an Image object.

You can also align image and text. The ImageAlign and TextAlign properties of Button are used for this purpose.

The following code snippet sets an image as a button background.

Text and Font

The Text property of Button represents the contents of a Button. The TextAlign property if used to align text within a Button that is of type ContentAlignment enumeration.

The Font property is used to set font of a Button.

The following code snippet sets Text and Font properties of a Button control.

Button Control States

Button control has five states — Normal, Flat, Inactive, Pushed, and All. ButtonState enumeration represents a button state.

Unfortunately, Windows Forms does not have a straight-forward way to set a button control state but there is a work around.

Windows Forms has a ControlPaint class with some static methods that can be used to draw various controls at runtime. The DrawButton method is used to draw a Button control and the last parameter of this method is ButtonState enumeration.

The following code snippet sets the button state of button1 using ControlPaint class.

Adding Button Click Event Hander

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.

The signature of Button click event handler is listed in the following code snippet.

Creating a C# Button Dynamically

Creating a Button control at run-time is merely a work of creating an instance of Button class, set its properties and add Button class to the Form controls.

First step to create a dynamic button is to create an instance of Button class. The following code snippet creates a Button control object.

Next step, you need to set Button class properties. You need to make sure to specify the Location, Width, Height or Size properties. The default location of Button is left top corner of the Form. The Location property takes a Point that specifies the starting position of the Button on a Form. The Size property specifies the size of the control. We can also use Width and Height property instead of Size property. The following code snippet sets Location, Width, and Height properties of a Button control.

In the next step, you may set more properties of the Button control.

The following code snippet sets background color, foreground color, Text, Name, and Font properties of a Button.

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.

The signature of Button click event handler is listed in the following code snippet.

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.

The complete code is listed in the following code, where CreateDynamicButton methods creates a Button control to a Form at run-time, attaches a click event handler of the button and adds Button control to the Form by calling Form.Controls.Add() method.

You need to make sure to call CreateDynamicButton() method on the Form’s constructor just after InitializeComponent() method, listed as following.

Summary

In this article, we discussed how to create Button control in Windows Forms using C# at design-time as well as at run-time. We also saw how to set a button properties and set the button click event handler.

As you said it is Winforms, you can do the following…

First create a new Button object.

Button newButton = new Button();

Then add it to the form inside that function using:

this.Controls.Add(newButton);

Extra properties you can set…

newButton.Text = "Created Button";
newButton.Location = new Point(70,70);
newButton.Size = new Size(50, 100);

Your issue you’re running to is that you’re trying to set it on Form_Load event, at that stage the form does not exist yet and your buttons are overwritten. You need a delegate for the Shown or Activated events in order to show the button.

For example inside your Form1 constructor,

public Form1()
{
    InitializeComponent();
    this.Shown += CreateButtonDelegate;
}

Your actual delegate is where you create your button and add it to the form, something like this will work.

private void CreateButtonDelegate(object sender, EventArgs e)
{
    Button newButton= new Button();
    this.Controls.Add(newButton);
    newButton.Text = "Created Button";
    newButton.Location = new Point(70,70);
    newButton.Size = new Size(50, 100);
    newButton.Location = new Point(20, 50);
}

In today’s tutorial, we are gonna have a look at How to use Button in C# Windows Form. In our previous tutorials, we have first discussed the …

1. Computer Science

1. C#

1. Microsoft Visual Studio

Hello everyone, I hope you guys are having fun with your lives. In today’s tutorial, we are gonna have a look at How to use Button in C# Windows Form. In our previous tutorials, we have first discussed the Introduction to C# Windows Forms in which we have created our first C# Windows Forms Project. After that we have discussed How to add C# Controls in Windows Form, in which we have added different C# controls in that Windows form.

So, now we are gonna add back end programming in those Controls one by one. In today’s tutorial, I am gonna add the code for the Buttons and you will see that it won’t be any difficult to use them in your projects. So, let’s get started with How to use Button in C# Windows Form.

How to use Button in C# Windows Form ???

• First of all, create a new Project as we did in Introduction to C# Windows Forms and then add two Buttons in your Windows Form, which we have learned in How to add C# Controls in Windows Form.
• Now, I think your C# Windows form will look something like this:

• So, now we have two buttons in our C# Windows Form, so now First of all, let’s change the text of first button from its Properties as shown in below figure:

• So, I have changed the text of Button1 to Click Here and I am gonna change the text of Button2 to Submit and they will now look like something as shown in below figure:

• Now you can see in the above figure that the Text on these buttons have changed to that which I have added in the Text section of their properties.
• Moreover, you must have also noticed that now their size has also increased, which I did by dragging the buttons.
• Now let’s change the name of these buttons too so I am gonna change the Name of first button to ClickHere and that of second button to Submit.
• We can’t add spaces in the Name of the Button.
• The Name Change for first button is shown in below figure:

• Now let’s add the Click event for each of these buttons.
• Click event is the event which should happened when you press the button.
• So, now double click the first button and it will open up its code as shown below:

• Now you can see in the above code we have a function named ClickHere_Click, which is the click event function for first button.
• ClickHere is the name of the button which we changed above and _Click is the event. In simple words, this event will call on when the ClickHere Button is clicked.
• Next we have the arguments, which I am not currently gonna discuss here but we will have a look at them later and then we have these curly brackets { }, and that’s where our code is gonna pasted for the click event of this button.
• So, add the below code into these brackets.

MessageBox.Show("Its a Click Here Button");

• Now when you pressed the Click Here Button then a sall message box will open up as shown in below figure:

• So, now you have seen, first we have added the Button then we changed its Text and Name and later we added the back end code in it so that it could perform an event on clicking.
• Now, I have added a small code in the Submit Button Click event and it looks something like this when you click it:

• So, that’s all about how to use button in C# Windows Form.

That’s all for today. Will meet you guys in the next tutorial on C#. Till then take care and have fun!!!

Syed Zain Nasir

syedzainnasir

I am Syed Zain Nasir, the founder of The Engineering Projects (TEP). I am a
programmer since 2009 before that I just search things, make small projects and now I am sharing my
knowledge through this platform. I also work as a freelancer and did many projects related to
programming and electrical circuitry. My Google Profile+

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