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</div><div class="contentWrapper__CenterContent-sc-1fp29y7-5 hXBTnV"><div class="questionWrapper__QuestionSection-ir5t2q-0 eGMjXE"><div class="questionHeader__HeaderSection-sc-18y0a3b-0 IVqWl"><div class="questionHeader__MetaSection-sc-18y0a3b-2 bQOgkd"><div class="questionHeader__MetaLeft-sc-18y0a3b-3 hFLAY"><img src="https://filedb.experts-exchange.com/files/public/2013/11/18/7b86b728-3813-42c3-a757-e08ca0e4e9d9.png" alt="Avatar of xNejX"/></div><div class="questionHeader__MetaRight-sc-18y0a3b-4 engfSe"><style data-emotion="css g9cw6v">.css-g9cw6v{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;}.css-g9cw6v&gt;*:not(style)~*:not(style){margin-top:0px;-webkit-margin-end:0px;margin-inline-end:0px;margin-bottom:0px;-webkit-margin-start:var(--chakra-space-2);margin-inline-start:var(--chakra-space-2);}</style><div class="chakra-stack css-g9cw6v"><div class="author">xNejX</div><img alt="Flag for Canada" title="Canada" src="https://cdnjs.cloudflare.com/ajax/libs/flag-icon-css/3.4.3/flags/4x3/ca.svg" style="display:inline-block;width:1em;height:1em;vertical-align:middle"/><p class="chakra-text css-0">asked on <time datetime="2010-11-22T12:30:42Z">11/22/2010</time></p></div><h1 class="questionHeader__Title-sc-18y0a3b-1 jLLeIg">WPF combobox selectionchanged event only on mouse click?</h1></div></div></div><div class="questionBodyWrapper__QuestionBodyWrapper-sc-57cwyz-0 jucnGB"><div id="q26630886" class="questionBody__BodyContent-q874ge-0 csPTmo wysiwyg-content"><div> Hi Guys,<br/> I have a ComboBox in my WPF xaml with some predefined ComboBoxItems. The ComboBox has the IsEditable enabled, so you can type in your username or select one from the predefined dropdown list of existing users on this system.<br/> When the user is selected I would like the focus to be transferred on the password field, but I'm having some difficulties with it since the combobox fires the selectionchanged event if i type in the first letter of a matching item in the ComboBoxItem or if I try to cycle through the predefined values using the up / down arrow keys. It's understandable that it does that since the selection of it has been changed, but I would like to know how could I filter my SelectionChanged event to pass the focus to my password input only if the user clicks on the item form the ComboBox, not if the item is autosuggested or cycled through with arrow keys. A good example of the user input field that I am trying to achieve is the Skype "Skype Name" component in the Skype Sign In screen.<br/> WPF xaml code:<br/> <pre><code class="code-1 nolinks" id="code-10-26630886-1"><span>&lt;ComboBox IsEditable="True" IsReadOnly="False" HorizontalAlignment="Left" Name="UserInput" Grid.ColumnSpan="2" " StaysOpenOnEdit="True" SelectionChanged="UserInput_SelectionChanged"&gt;</span> <span> &lt;ComboBoxItem Content="test" /&gt;</span> <span> &lt;ComboBoxItem Content="abc" /&gt;</span> <span> &lt;ComboBoxItem Content="xyz" /&gt;</span> <span>&lt;/ComboBox&gt;</span> </code></pre><p class="buttons csButton"><button name="codeSnippetId" type="button" class="button"><span>Select all</span></button><a href="/viewCodeSnippet.jsp?codeSnippetId=10-26630886-1" target="_blank" rel="noreferrer" class="button" title="Open in new window"><span>Open in new window</span></a></p> C# Code:<br/> <pre><code class="code-1 nolinks" id="code-10-26630886-2"><span>private void UserInput_SelectionChanged(object sender, SelectionChangedEventArgs e)</span> <span> PasswordInput.Focus();</span> </code></pre><p class="buttons csButton"><button name="codeSnippetId" type="button" class="button"><span>Select all</span></button><a href="/viewCodeSnippet.jsp?codeSnippetId=10-26630886-2" target="_blank" rel="noreferrer" class="button" title="Open in new window"><span>Open in new window</span></a></p> I've also tried the preview on key event returning the e.handled which worked fine, but it disabled the functionality of manually inputting a new value to the ComboBox:<br/> <pre><code class="code-1 nolinks" id="code-10-26630886-3"><span>private void UserInput_PreviewKeyDown(object sender, System.Windows.Input.KeyEventArgs e)</span> <span> e.Handled = true;</span> </code></pre><p class="buttons csButton"><button name="codeSnippetId" type="button" class="button"><span>Select all</span></button><a href="/viewCodeSnippet.jsp?codeSnippetId=10-26630886-3" target="_blank" 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id="clip0_1157_14944"><rect width="59" height="18" fill="white"/></clippath></defs></svg></button></div></div></div></div><div class="commentBody__CommentBodyWrapper-qtsrh5-0 fhlaeB wysiwyg-content"><div class="content wysiwyg-content fr-view"><div> I don't have WPF on my system, but I think I know what you're talking about and might offer a suggestion.<br/> What I would do is set the OnMouseDown event for the combo box itself and then set a class-wide static bool variable to true if the mouse button was pushed while the cursor was over the combo box.<br/> Then, in the OnSelectionChanged event, I'd check to see if the mouse had been previously pushed down. If so, then I'd do the move to the password box. <br/> Make sure to reset the bool value to false as appropriate. You might have to tinker around with it. Anyway, that's what I'd do. There might be a more elegant solution.
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