selection

问题 I am creating custom contextual action bars (CAB) within a custom WebView . My requirements are such that selecting a particular option from the first CAB will open a second CAB. This is the end goal: I have made this happen, but the selection is not working correctly. I know it looks correct, but if the user taps any of the other three icons, this is the result: If the user touches the selection after pressing any of the four initial icons, the app crashes due to a null pointer exception.

问题 Selection list becomes empty when datasource is updated. steps: 1. select some users steps: 2. select second tab steps: 3. come back to the first tab selected users are available in chips but not selected in datatable. look at https://stackblitz.com/edit/angular-v3kjgj?embed=1&file=app/selectusers.component.ts 回答1: You are saving selection status by the "row" object itself, which are all changed by your loadUsers() call when you change select the first tab. Either don't call loadUsers() every

问题 This question already has an answer here : Selecting specific values on a Chart (1 answer) Closed 3 years ago . Data with X, Y values is plotted on as a scatter chart using the .NET 4.0 Chart control. I believe the Microsoft chart control was obtained from Dundas. I would like to select points on the chart using a rubber-band rectangle similar to the rectangle that is used to zoom the chart. (When the first mouse button is clicked it establishes one corner of the rectangle, as the mouse moves

问题 Business World 1256987 monthly 10 2009-10-28 Business World 1256987 monthly 10 2009-09-23 Business World 1256987 monthly 10 2009-08-18 Linux 4 U 456734 monthly 25 2009-12-24 Linux 4 U 456734 monthly 25 2009-11-11 Linux 4 U 456734 monthly 25 2009-10-28 I get this result with the query: SELECT DISTINCT ljm.journelname,ljm. subscription_id, ljm.frequency,ljm.publisher, ljm.price, ljd.receipt_date FROM lib_journals_master ljm, lib_subscriptionhistory lsh,lib_journal_details ljd WHERE ljd.journal

问题 I read a lot about ListSelector and selectors. But i cant figure out how to have the Item of a ListView having a different color after it got pressed. In a Dual Fragment Layout the User clicks in Left ListView, data get loaded and presented in the right Fragment. To Keep the User Informed which item selected i want this to be highlighted until next item in the Left ListView gets pressed. Do i need a custom State there ? How does the GMail App do this ? thx 回答1: Right, You need additional

问题 Question: Is there an easy way to sort jList using Up/Down Buttons on jFrame? My JList stores path's of image files and displays string with name of the file. I would like to move down/up the element by clicking down/up Button. Here's what I did - the effect is moving the selection (blue field), not the element. Button2 is button "up". private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { int indexOfSelected = jList1.getSelectedIndex(); File selectedFile = (File) jList1

问题 I'm writing a hex editor-like view, which is composed of two JTextComponents (hex and ASCII). I'd like to synchronize the selection between the two views, so I've implemented a CaretListener for the two components. This works well for responding to selection events where the user has long-pressed, dragged, and released the mouse. The components receive the caretUpdate when the user releases the mouse. How can the components receive incremental caretUpdate events as the user presses the mouse

问题 In an MS-Access RichTextBox on a Report, I want to make a selection of the text bold. I found this post on a forum which explains how to do this in VB6. I tried the same in MS-Access, both with a normal Access textbox with the Text Format property set to Rich Text and a Microsoft Forms 2.0 TextBox added via the ActiveX Controls dialogue box, neither works. I know VBA is based heavily on VB6 so my logic is if it can be done in VB6, I should be able to do it in Access. Am I right? Is it

问题 As a precursor, it is worth mentioning that I am new at PHP. I've spent roughly 3 hours working on what seems like it should be a simple fix. Using PHP to echo back a form after choosing submit, my drop-down menu is only echoing back the first name, regardless of which one is selected. Here is my code: <form action="echo_form_email.php" method="GET"> <p> <div id="cheddar">Cashier: <input id="cashier" name="cashier" type="text"></div> </p> <P> <div id="q">Did the cashier front the register?<

问题 I would like to detect the element and text offset under the specified x and y co-ordinates. Let's say we have such DOM: <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam quis nisl lectus. Donec euismod dignissim turpis, nec viverra nulla iaculis nec. _Fusce_ mattis orci eget nibh rhoncus auctor at in enim. </p> When the user clicks the mouse just before the word _Fusce_ having the x and y co-ordinates I would like to obtain the offset of the word _Fusce_ in the text node as an