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POWhy when calling the function in the numericUpDown changed event making everything slow after some times?
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  1. POWhy when calling the function in the numericUpDown changed event making everything slow after some times?
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    copied!<p>This is the code in the <code>NumericUpDown</code> <code>ValueChanged</code> event:</p> <pre><code>private void numericUpDown1_ValueChanged(object sender, EventArgs e) { DoThresholdCheck(); } </code></pre> <p>And this is the <code>DoThresholdCheck()</code> code:</p> <pre><code>private void DoThresholdCheck() { List&lt;int&gt; f; List&lt;string&gt; fts; const string D6 = "000{0}.bmp"; if (Directory.Exists(subDirectoryName)) { if (!File.Exists(subDirectoryName + "\\" + averagesListTextFile + ".txt")) { return; } else { f = new List&lt;int&gt;(); fts = new List&lt;string&gt;(); Bitmap myFiles; int counter = 0; double thershold = (double)numericUpDown1.Value; double max_min_threshold = (thershold / 100) * (max - min) + min; _fi = new DirectoryInfo(subDirectoryName).GetFiles("*.bmp"); for (int i = 0; i &lt; myNumbers.Count; i++) { if (myNumbers[i] &gt;= max_min_threshold) { string t = i.ToString("D6") + ".bmp"; if (File.Exists(subDirectoryName + "\\" + t)) { button1.Enabled = false; myTrackPanelss1.trackBar1.Enabled = true; } else { button1.Enabled = true; myTrackPanelss1.trackBar1.Enabled = false; pictureBox1.Image = Properties.Resources.Weather_Michmoret; label5.Visible = true; break; } } } if (myTrackPanelss1.trackBar1.Maximum &gt; 0) { SetPicture(0); myTrackPanelss1.trackBar1.Scroll += new EventHandler(trackBar1_Scroll); } if (_fi.Length &gt;= 0) { label15.Text = _fi.Length.ToString(); label15.Visible = true; } } } else { button1.Enabled = true; } } </code></pre> <p>What I want to do is; each time I change the <code>NumericUpDown</code> value in the program it will call the function in the event. In the event I create a new temp list each time and perform operations and make some checks on that list.</p> <p>The problem is when I'm changing the <code>NumericUpDown</code> value a few times up and down in the program and then try to use the <code>trackBar1</code> to move between the images again, the <code>trackbar1</code> moves very slowly. When initially running the program, the slide bar in the <code>trackbar1</code> moves quickly and moves quickly between images, but when I change the <code>NumericUpDown</code> values the trackbar moves slowly for some reason.</p> <p>I tried to add a <code>Timer2</code> and maybe use it in the <code>NumericUpDown</code> to make it call the function only after 500ms, for example, but it didn't solve it.</p> <p>I can't figure out why its moving so slow.</p>
 

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