Winforms – How to make windows form UI responsive

.net-2.0user-interfacewinforms

This is a common problem for all developers, I am looking for the best solution to make windows forms UI responsive.

I have an animated GIF file to show progress of my calcuation on windows form. I took a picture box control and placed animated gif into that. now when my calcuation starts – the animaged gif freezes. I want the reverse, the animation should be visible when i am running the calculation.

Any to the point thoughts? A simple solution is to display a progress bar to the user while doing complex calculations behind the scene

My app is a single threaded application, and I want a simple solution, not looking for multi-threads, or background worker kind of technologies.

Any help?

Best Solution

Multiple threads would be my recommendation. A bit messy first time you try ;)

Simplest model: One thread for the GUI, and one thread for whatever work you need to do.

Check this link.

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C# – How to save application settings in a Windows Forms application

If you work with Visual Studio then it is pretty easy to get persistable settings. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.

Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain the singleton class Settings inherited from ApplicationSettingsBase. You can access this class from your code to read/write application settings:

Properties.Settings.Default["SomeProperty"] = "Some Value";
Properties.Settings.Default.Save(); // Saves settings in application configuration file

This technique is applicable both for console, Windows Forms, and other project types.

Note that you need to set the scope property of your settings. If you select Application scope then Settings.Default.<your property> will be read-only.

Reference: How To: Write User Settings at Run Time with C# - Microsoft Docs

C# – How to make a textbox that only accepts numbers

Two options:

Use a NumericUpDown instead. NumericUpDown does the filtering for you, which is nice. Of course it also gives your users the ability to hit the up and down arrows on the keyboard to increment and decrement the current value.

Handle the appropriate keyboard events to prevent anything but numeric input. I've had success with this two event handlers on a standard TextBox:

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) &&
        (e.KeyChar != '.'))
    {
            e.Handled = true;
    }

    // only allow one decimal point
    if ((e.KeyChar == '.') && ((sender as TextBox).Text.IndexOf('.') > -1))
    {
        e.Handled = true;
    }
}

You can remove the check for '.' (and the subsequent check for more than one '.') if your TextBox shouldn't allow decimal places. You could also add a check for '-' if your TextBox should allow negative values.

If you want to limit the user for number of digit, use: textBox1.MaxLength = 2; // this will allow the user to enter only 2 digits

Best Solution

Related Solutions

C# – How to save application settings in a Windows Forms application

C# – How to make a textbox that only accepts numbers

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