22.11.2020

Category: Show loading in windows form

Show loading in windows form

Keep in touch and stay productive with Teams and Officeeven when you're working remotely. Learn how to collaborate with Office Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services.

Walkthrough: Hosting a WPF Composite Control in Windows Forms

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show loading in windows form

You can follow the question or vote as helpful, but you cannot reply to this thread. There are several reasons why you are experiencing this concern. This could be because of some corrupted file or data on the system that causes you some issues. Let us help you isolate the main issue by performing the steps below:. Step 1: Clean boot. It will start Windows by using a minimal set of drivers and start up programs.

It will also eliminate software conflicts that could occur when you install a program, or an update, or when you run a program in Windows. Step 2: Reset Windows Update Components. Did this solve your problem? Yes No. Sorry this didn't help. April 14, Keep in touch and stay productive with Teams and Officeeven when you're working remotely. Site Feedback.

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Showing the loading image in windows Forms

Abdelrahman Sayed Created on May 28, I have the same question User Replied on May 30, Microsoft Agent. In reply to Abdelrahman Sayed's post on May 29, Thank you for that information. Let us help you isolate the main issue by performing the steps below: Step 1: Clean boot. These are services that Windows Update needs to make sure it's working effectively. Step 3: Perform corruption fix tools. Thanks for marking this as the answer.

How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. How satisfied are you with this response? This site in other languages x.There are different ways a program can automatically load when Windows first starts. Below is a full list of where to find startup programs and how they can be disabled. Users of Windows 8 and 10 can disable startup programs via the Windows Task Manager.

Most Windows users can use the msconfig utility to disable startup programs by following the steps below. Another location startup programs are placed is the Windows Startup folder. To view this folder, follow the steps below. The Windows registry is another common location to locate programs loading up automatically.

show loading in windows form

If you are unfamiliar with the registry and its potential dangers, see the registry help page. Once you have familiarized yourself with the registry, follow the steps below. Microsoft Windows can also automatically load a program through Windows services.

show loading in windows form

Follow the steps below to check the services currently setup on your computer. Although not as common as the previous recommendations, with early versions of Windows the win. The win. Follow the steps below for instructions on how to remove programs from the win. We recommend that you write down whatever is deleted in case it needs to be added back into the win.

Windows 8 and Windows XP, Vista, and 7. Windows Startup. Windows registry. Windows Services. Note User must have administrative rights to perform the steps below. Tip We recommend that you write down whatever is deleted in case it needs to be added back into the win. Additional information See our startup definition for further information and related links.

Microsoft Windows help and support. Was this page useful?If your Windows Form application is doing some long running tasks in the background, then the UI becomes unresponsive. To inform the user that some long running task is operating in the background, you need to display an indicator. The indicator can be as simple as an animated image GIF image.

This article describes how to do the same in Windows Forms. The example provided in this article displays the number of vowels, consonants, numbers and special characters present in a text file. It reads the input from a text file line by line which is provided by the user and displays the output in a grid.

Add a PictureBox control to the centre of the form and then set the " Image " and " InitialImage " properties to the loading image. You can import the image from the Visual Studio Properties Window. To do the same, click the " It will open the " Select Resource " window.

Choose the " Project resource file " option and then click the " Import Choose the loading image and then click " Open " and " Ok " buttons. See the below images for reference. When the user clicks the " Find " button, we want to display a loading indicator to the user so the user can know that the operation is happening in the background.

The loading indicator is displayed as follows:. After the background operation is completed, the loading image is hidden and the data are loaded to the grid. Below is a screenshot of the form where data are loaded to the grid. When the user clicks the " Browse. The below code is used to display the file open dialog with the customization. Note the " Title " and " Filter " added to the file open dialog.

The above code is used for displaying the loading image which is kept inside a PictureBox control. Note that the code is kept inside this. Invoke ; When the loading image is displayed, the cursor is changed to " wait " cursor. The first line displays the loading indicator. The other operation takes place next and finally, the loading indicator is hidden.

We cannot read the data from the controls directly because the whole operation takes place in a separate thread. If you will try to read the content from the control directly, then it will throw an error.

If you will try to read the ComboBox value directly in the DisplayData method, then it will throw invalid cross-thread operation error.

Cross-thread operation not valid: Control 'cmbCharacterType' accessed from a thread other than the thread it was created on.The following procedures describe the basic steps that you must complete to create and run a Windows Forms application from the command line.

There is extensive support for these procedures in Visual Studio. The attribute is not necessary in Visual Basic, since Windows forms applications developed with Visual Basic use a single-threaded apartment model by default. Call EnableVisualStyles to apply operating system styles to your application. At the. NET Framework command prompt, navigate to the directory you created the Form1 class.

The previous procedure steps demonstrated how to just create a basic Windows Form that compiles and runs. The next procedure will show you how to create and add a control to the form, and handle an event for the control. In addition to understanding how to create Windows Forms applications, you should understand event-based programming and how to handle user input. In the constructor, create the button and set its SizeLocation and Text properties.

Create a method to handle the Click event for the button. In the click event handler, display a MessageBox with the message, "Hello World". Associate the Click event with the method you created. Skip to main content. Exit focus mode. Procedure To create the form In an empty code file, type the following Imports or using statements: using System; using System.

ComponentModel; using System. Drawing; using System. Forms; Imports System.

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ComponentModel Imports System. Drawing Imports System. You will add more code to the constructor in a subsequent procedure. Create an instance of the form and run it. EnableVisualStyles ; Application. EnableVisualStyles Application. Compile the form. If you are using Ctype: csc form1. For more information, see Creating Event Handlers in Windows Formsand Handling User Input To declare a button control and handle its click event Declare a button control named button1.

Add the button to the form. Add button1 ; button1.When you have time-consuming operations you can use the BackgroundWorker class to show a alert form, displaying that your application is in progress. Create a BackgroundWorker and listen for events that report the progress of your operation and signal when your operation is finished. Download read license Source code.

Create a new Windows Form Application. The main form, Form1, is automatically created. Add a label to the form, change the name to labelMessage. Add a progressbar. Add a button, change the name to buttonCancel and change the text to Cancel. Double-click on the button to create a Click event. Visual Studio will switch over to code view, and this is where we will write our code.

Later we will add the EventHandler to Form1, this is because that if the user clicks on the Cancel button, we want to handle the event in Form1 where our BackgroundWorker is running.

Order of Events in Windows Forms

We need to create two properties so we can update the label text and the progressbar from Form1, so add the following properties:. Add one button and one label to the form, rename the button to buttonStart and the label to labelResult. Double-click on the button to create the Click event. Add a BackgroundWorker to the form. In the properties window, click on events button the yellow flash and you will see that the backgroundworker has three events.

We will use them all, so double-click on all of them. After creating an event you have to go back to design view to create the next. Here we create an instance of the AlertForm and assigns the event handler to get the event that are raised if the user clicks on Cancel in the AlertForm. Opens the AlertForm and starts the backgroundworker. If the user clicks on Cancel, the backgroundworker will cancel and the AlertForm window will close.

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Now we have to add code to the three event we added for the backgroundworker. Lets start with the DoWork event.

This is where you will do your time-consuming work. Deleting files, downloading files, or what it is that you want to do. In this example we just runs a loop and make it sleep a while so it will take some time to finish it. We also pass a value to BackgroundWorker. ReportProgress that will be passed to the label and progressbar that we have in AlertForm. When we call BackgroundWorker.

ReportProgress, the backgroundworker will run ProcessChanged event. So lets add some code to it. We change the text on the label in our main form, and we pass values over to the label and progressbar in AlertForm. Now we only have the RunWorkerCompleted event left, so lets add code that changes our label text to Canceled if the user cancels, Done when it is completed or shows an error message if something went wrong.

And finally we close the AlertForm window. Now we have form with a progressbar that opens when our time-consuming process starts. And it will be closed when the process are finished or the users cancel the process. Intermediate user engineer, not programmerfirst time using backgroundworkers. Very helpful, thanks. Hi Hieu, You should be able to get it to work with ShowDialog if you rebuilt it with an delegate that you invoke.The order in which events are raised in Windows Forms applications is of particular interest to developers concerned with handling each of these events in turn.

When a situation calls for meticulous handling of events, such as when you are redrawing parts of the form, an awareness of the precise order in which events are raised at run time is necessary. This topic provides some details on the order of events during several important stages in the lifetime of applications and controls. For specific details about the order of mouse input events, see Mouse Events in Windows Forms.

For an overview of events in Windows Forms, see Events Overview. For details about the makeup of event handlers, see Event Handlers Overview. The Form and Control classes expose a set of events related to application startup and shutdown.

When a Windows Forms application starts, the startup events of the main form are raised in the following order:. When an application closes, the shutdown events of the main form are raised in the following order:.

The ApplicationExit event of the Application class is raised after the shutdown events of the main form. Startup and WindowsFormsApplicationBase.

When you change the focus by using the mouse or by calling the Focus method, focus events of the Control class occur in the following order:. Skip to main content. Exit focus mode.

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Application Startup and Shutdown Events The Form and Control classes expose a set of events related to application startup and shutdown. When a Windows Forms application starts, the startup events of the main form are raised in the following order: Control.

HandleCreated Control. BindingContextChanged Form. Load Control. VisibleChanged Form.So far we have seen how to work with C to create console based applications.

But in a real-life scenario team normally use Visual Studio and C to create either Windows Forms or Web-based applications. A windows form application is an application, which is designed to run on a computer. It will not run on web browser because then it becomes a web application. This Tutorial will focus on how we can create Windows-based applications. We will also learn some basics on how to work with the various elements of Windows applications.

A Windows forms application will normally have a collection of controls such as labels, textboxes, list boxes, etc. Below is an example of a simple Windows form application. It shows a simple Login screen, which is accessible by the user. The user will enter the required credentials and then will click the Login button to proceed. So an example of the controls available in the above application This is a collection of label controls which are normally used to describe adjacent controls.

So in our case, we have 2 textboxes, and the labels are used to tell the user that one textbox is for entering the user name and the other for the password. The 2 textboxes are used to hold the username and password which will be entered by the user.

Finally, we have the button control. The button control will normally have some code attached to perform a certain set of actions. So for example in the above case, we could have the button perform an action of validating the user name and password which is entered by the user. C Hello World Now let's look at an example of how we can implement a simple 'hello world' application in Visual Studio.

For this, we would need to implement the below-mentioned steps Step 1 The first step involves the creation of a new project in Visual Studio. Step 2 The next step is to choose the project type as a Windows Forms application. Here we also need to mention the name and location of our project. In the project dialog box, we can see various options for creating different types of projects in Visual Studio.

Click the Windows option on the left-hand side. When we click the Windows options in the previous step, we will be able to see an option for Windows Forms Application. Click this option. We then give a name for the application which in our case is DemoApplication.

We also need to provide a location to store our application. Finally, we click the 'OK' button to let Visual Studio create our project.

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If the above steps are followed, you will get the below output in Visual Studio. It's in this Form Designer that you will start building your Windows Forms application. This solution will contain the below 2 project files A Form application called Forms1.

This file will contain all of the code for the Windows Form application. The Main program called Program. This code will contain the startup code for the application as a whole. On the left-hand side of Visual Studio, you will also see a ToolBox. The toolbox contains all the controls which can be added to a Windows Forms. Controls like a text box or a label are just some of the controls which can be added to a Windows Forms.

Below is a screenshot of how the Toolbox looks like.


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