大约有 18,368 项符合查询结果（耗时：0.0225秒） [XML]
Disabled form inputs do not appear in the request
...ielson317 You can keep the select element "disabled" but also add another hidden input with the same value.
– AlphaMale
May 5 '15 at 3:34
1
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MySQL: Fastest way to count number of rows
...a from mysql to php. Why do it when you can achieve the same on the mysql side?
If the COUNT(*) is slow, you should run EXPLAIN on the query, and check if indexes are really used, and where should they be added.
The following is not the fastest way, but there is a case, where COUNT(*) doesn't re...
jQuery hasAttr checking to see if there is an attribute on an element [duplicate]
...turn false as well. It should be true, because an empty attribute is a valid attribute. Also, there's no need for a double-not because if casts it down to bool anyway.
– strager
Feb 4 '11 at 1:15
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Convert JSON String To C# Object
...st {
String test;
String getTest() { return test; }
void setTest(String test) { this.test = test; }
}
Then your deserialization code would be:
JavaScriptSerializer json_serializer = new JavaScriptSerializer();
Test routes_list =
(Test)json_serializer.Deser...
How do I expire a PHP session after 30 minutes?
... collector is only started with a probability of session.gc_probability divided by session.gc_divisor. And using the default values for those options (1 and 100 respectively), the chance is only at 1%.
Well, you could simply adjust these values so that the garbage collector is started more often. B...
Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT
... startActivityForResult(intent, GALLERY_KITKAT_INTENT_CALLED);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode != Activity.RESULT_OK) return;
if (null == data) return;
U...
What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
... result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'.
ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable).
ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT,...
changing source on html5 video tag
i'm trying to build a video player, that works everywhere. so far i'd be going with:
16 Answers
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How to handle code when app is killed by swiping in android?
...r listeners, how can i do that? I read quite a few articles and blogs but didn't get any useful information and I haven't found any documentation about it.
Any help would be appreciated.
Thanks in advance.
...
How to show soft-keyboard when edittext is focused
...yboard to appear, you can use
EditText yourEditText= (EditText) findViewById(R.id.yourEditText);
yourEditText.requestFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT);
And for re...