Window form Locked issue

Rajanikant Hawaldar

Hi All,

I created one sample Window form application and posted the full code below and problem what i am facing here is form is locked,

unable to move screen of window form using mouse cursor.

using timer is mandatory in this.

using System;

using System.Windows.Forms;

namespace WinScreenLocked

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

int Number = 0;

private void timer1_Tick(object sender, EventArgs e)

{

while (true)

{

textBox1.Text = Number.ToString();

Number++;

}

private void button1_Click(object sender, EventArgs e)

{

timer1.Start();

}

7 Replies

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Amit Gupta7y ago
Yes eomehow. This is the only solution when your program is like this. Alternatively you can use async/await programming without using timer and while loop which hives more responsiveness and runs on background thread.
Rajanikant Hawaldar7y ago
If i use Application.DoEvents(); code execution flow will change
Amit Gupta7y ago
The solution cannot be determined without the actual requirement. As per your sample code tiner tick event is already running on an interval while while loop is constantly running infinity and block the UI thread, if you cannot remove then you can put Application.DoEvents(); under while loop but you will face some performance issue. Will get some response from UI. If you can depict your actual requirement we can provide some optimal solution
Rajanikant Hawaldar7y ago
Here While loop is required because its requirement in project and whatever i posted is sample i created.
Amit Gupta7y ago
There is no need of while loop co dition, removing fill fix your issue, just keep the body part of it
Rajanikant Hawaldar7y ago
@Amit Kumar After click on button, text is not displaying on textbox and i am unable move screen anywhere using mouse this is the issue what exactly i am facing
Amit Kumar7y ago
Hi, Go through the below link. https://docs.microsoft.com/en-us/dotnet/framework/winforms/controls/how-to-lock-controls-to-windows-forms Or One solution to that would be to make the handler async and use await a Task.Delay() instead of using Thread.Sleep(): private async void c1Button1_Click(object sender, EventArgs e) { c1Button1.Enabled = false; // avoid multiple clicks for ( int i = 0; i < 100; i++) { c1RadialGauge1.Value = i; textBox1.Text = i.ToString(); textBox1.Update(); c1Gauge1.Refresh(); await Task.Delay(100); } c1Button1.Enabled = true; // allow further clicks }