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POComboBox locks at application start
 

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    <p>Ok, this is a strange one (or I'm doing something stupidly). I have a WPF combobox which is populated with a string array on form load (app start). This part works fine. The sticky bit is when I try to alter any of the information within said combobox. The debug says that it is changing but nothing is being shown visually.</p> <pre><code>// Populate the combobox: private void ComboBlocks() { comboBox1.Items.Clear(); string[,] _tmp = _kits.BlockIDNames; string[] _tmp1 = new string[_tmp.GetLength(0)]; for (int i = 0; i &lt; _tmp.GetLength(0); i++) { _tmp1[i] = _tmp[i, 0] + " - " + _tmp[i, 1]; } foreach (string s in _tmp1) { string[] _tmpS1 = s.Split(new char[] { '-' }); int _tmpS2 = Convert.ToInt32(_tmpS1[0].Trim()); bool _banneditem = _cbi.BannedItemExists(_tmpS2); if (_banneditem == true) AddComboItem(s, true); else AddComboItem(s); } if (comboBox1.Items.Count &gt; 0) comboBox1.SelectedIndex = 0; } // Add item to combobox: private void AddComboItem(string _text,bool _redtext = false) { Grid grid = new Grid(); grid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto }); TextBlock text = new TextBlock(); text.Text = _text; if (_redtext == true) text.Foreground = Brushes.Red; else text.Foreground = Brushes.Black; grid.Children.Add(text); Grid.SetColumn(text, 0); ComboBoxItem comboBoxItem = new ComboBoxItem(); comboBoxItem.Content = grid; comboBoxItem.Tag = _text; comboBox1.Items.Add(comboBoxItem); } </code></pre> <p>Also, I am fairly new to C# so if there is anything that I'm doing wrong/inefficiently, please point it out.</p> <p>Many thanks.</p> <p>EDIT: Iterating through each one and changing the text value would probably be just as much work as it gets its information from another array. It would have to check for each item in the array and if it exists, colour it red, if it doesn't, colour it black.</p>
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    1. USJonas Van der Aa
    1. USChris Palmer
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    1. COWhen you say, "alter any of the information within said combobox", what do you mean? Are you talking about typing in the combobox, but your combobox isn't auto-completing?
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      1. USWEFX
    2. CONo, I'm grabbing the contents from a class. I have another form that changes the information within that class then calls ComboBlocks() again. The items in the combobox don't change at all - if they're red they stay red and likewise for black.
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      1. USChris Palmer
    3. COI have even added a button to the same form on which the combobox sits. This button calls ComboBlocks() directly yet still nothing happens. If I tell the button to "comboBox1.Items.Clear()" it works but this doesn't get me any closer to solving this.
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