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POtabcontrol not refreshing
 

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    <p>I have a TabControl that starts with three TabPages in it. On the first tab there is a NumericUpDown (spinner) which displays the number of tabs and allows a user to add up to 10 extra tabs. Once they add more than about 5 or 6 it goes beyond the width of the form and the rest of the tabs are accessible by a couple of left/right arrows at the top. When going all the way to the right and then using the spinner to go back down to 0 (removing all the extra tabs and leave the starting three) it removes all tabs from the top of the pane and only by setting the spinner back to 1 does it refresh and display all 4 (3 from the start plus the 1 from the spinner). I have tried several commbinations of <code>Application.DoEvents()</code> <code>this.Refresh()</code> <code>this.Invalidate()</code> <code>this.Update()</code> but nothing seems to work. can anybody suggest a reason why it is not updating/refreshing?</p> <pre><code>public partial class Form1 : Form { TabPage[] tabs; public Form1() { InitializeComponent(); tabs = new TabPage[tabControl1.Controls.Count]; tabs[0] = tabPage1; } private void numericUpDown1_ValueChanged(object sender, EventArgs e) { int numTabs = tabControl1.Controls.Count; decimal spinnerValue = numericUpDown1.Value; if (numTabs &lt; spinnerValue) //add a tab { TabPage[] newTabs = new TabPage[(int)spinnerValue]; for (int i = 0; i &lt; numTabs; i++) { newTabs[i] = tabs[i]; } TabPage tab = new TabPage("Tab " + numTabs); newTabs[(int)spinnerValue-1] = tab; tabControl1.Controls.Add(tab); tabs = newTabs; } else //remove a tab { TabPage[] newTabs = new TabPage[(int)spinnerValue]; for (int i = 0; i &lt; spinnerValue; i++) { newTabs[i] = tabs[i]; } tabControl1.Controls.Remove(tabs[(int)spinnerValue]); tabs = newTabs; } } } </code></pre>
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    1. USuser1584120
    1. USuser1584120
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    1. COWhat does your code look like..? sounds like you have 2 issues one of them being SelectedIndex Issue and the other DoEvents() don't use that.. perhaps you can look at BeginInvoke if (tabControl1.SelectedIndex == 1) { this.BeginInvoke(new Action(() => tabControl1.SelectTab(0)));
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      1. USMethodMan
    2. COwhy would there be a selectedindex issue?
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    3. COI am taking a stab in the dark without any code to see how you are doing things... it's hard for anyone to give a concrete answer.. I would suggest posting some code
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      1. USMethodMan
 

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