大约有 18,500 项符合查询结果(耗时:0.0329秒) [XML]

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Most efficient way to check for DBNull and then assign to a variable?

...y; return row[columnName] as string ?? string.Empty; } Usage: int? id = row.GetValue<int>("Id"); string name = row.GetText("Name"); double? price = row.GetValue<double>("Price"); If you didn't want Nullable<T> return values for GetValue<T>, you could easily return d...
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Automating “enter” keypresses for bash script generating ssh keys

...works fine, although it looks like the dash from ssh-keygen got dropped - did you add that back in? {edited} Also - you can't run the script more than once - it changes the questions to confirm you want to overwrite the existing _rsa keyfile (so a y or n needs to be supplied) –...
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How to display full (non-truncated) dataframe information in html when converting from pandas datafr

... Set the display.max_colwidth option to -1: pd.set_option('display.max_colwidth', -1) set_option docs For example, in iPython, we see that the information is truncated to 50 characters. Anything in excess is ellipsized: If you set the display.max_c...
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Is APC compatible with PHP 5.4 or PHP 5.5?

It doesn't seem like APC has been updated to coincide with the php 5.4 release (I wish they would have included APC in PHP core like originally planned). ...
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maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e

...can instruct m2e to ignore this. Option 1: pom.xml Add the following inside your <build/> tag: <pluginManagement> <plugins> <!-- Ignore/Execute plugin execution --> <plugin> <groupId>org.eclipse.m2e</groupId> <artifactId>lif...
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How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?

...ver variables you want to return. public interface AsyncResponse { void processFinish(String output); } Go to your AsyncTask class, and declare interface AsyncResponse as a field : public class MyAsyncTask extends AsyncTask<Void, Void, String> { public AsyncResponse delegate = null; ...
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Editing the git commit message in GitHub

...nswered May 23 '12 at 21:56 dunnidunni 35.2k88 gold badges9090 silver badges9292 bronze badges ...
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What is offsetHeight, clientHeight, scrollHeight?

...rence between offsetHeight , clientHeight and scrollHeight or offsetWidth , clientWidth and scrollWidth ? 4 Answer...
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Full Page

... { margin: 0; padding: 0; height: 100%; overflow: hidden; } #content { position:absolute; left: 0; right: 0; bottom: 0; top: 0px; } </style> </head> <body> <div id="...
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Android customized button; changing text color

... Create a stateful color for your button, just like you did for background, for example: <selector xmlns:android="http://schemas.android.com/apk/res/android"> <!-- Focused and not pressed --> <item android:state_focused="true" android:state_press...