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Better way to check if a Path is a File or a Directory?

I am processing a TreeView of directories and files. A user can select either a file or a directory and then do something with it. This requires me to have a method which performs different actions based on the user's selection. ...
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In Intellij IDEA how do I replace text with a new line?

... This still exists, select multiple lines, then click CTRL+F, then click CTRL+R, it seems to be a hidden feature, but still works in that case as previous versions – wired00 May 22 '16 at 7:09 ...
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How do I turn off the unlimited whitespace in IntelliJ editor?

... If the other answers don't seem to be working, you might have Column Selection Mode enabled. On my Mac it's mapped to Cmd+Shift+8. It's located under the Edit menu. That menu item will show a little checkmark when the mode is enabled. ...
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Reflection: How to Invoke Method with parameters

...ngth > 0 orderby t.Name select t; foreach (var type in testTypes) { //get test method in types. var testMethods = from m in type.GetMethods() let attributes = m.GetCustomAttribut...
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Git undo local branch delete

... git reflog show This will display all the Commit history, you need to select the sha-1 that has the last commit that you want to get back 2: create a branch name with the Sha-1 ID you selected eg: 8c87714 git branch your-branch-name 8c87714 ...
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How to generate .json file with PHP?

... Here is a sample code: <?php $sql="select * from Posts limit 20"; $response = array(); $posts = array(); $result=mysql_query($sql); while($row=mysql_fetch_array($result)) { $title=$row['title']; $url=$row['url']; $posts[] = array('title'=> $titl...
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What is an AngularJS directive?

...on. The ng-model directive binds the value of HTML controls (input, select, textarea) to application data. The ng-bind directive binds application data to the HTML view. <div ng-app=""> <p>Name: <input type="text" ng-model="name"></p> <p ng-bind="name...
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App Inventor 2 蓝牙遥控教程 - 经典蓝牙与BLE控制智能硬件 · App Inventor 2 中文网

...选择器1.AfterPicking() { if 蓝牙客户端1.Connect(列表选择器1.Selection) { 标签_状态.Text = "已连接:" + 列表选择器1.Selection 蓝牙客户端1.Secure = true } else { 标签_状态.Text = "连接失败,请重试" } } 说明: 蓝牙客户端1.Addres...
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How to upgrade all Python packages with pip?

... install pip-review $ py -3 -m pip_review --local --interactive You can select 'a' to upgrade all packages; if one upgrade fails, run it again and it continues at the next one. share | improve th...
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Cannot convert lambda expression to type 'string' because it is not a delegate type [duplicate]

...ID == Value orderby q.RowID descending select q).FirstOrDefault(); Errors: Error 241 Cannot convert lambda expression to type 'string' because it is not a delegate type Error 242 Delegate 'System.Func<..>' does not take 1 arguments Error 243 The name 'Valu...