大约有 18,336 项符合查询结果（耗时：0.0210秒） [XML]
Check if property has attribute
...credit to Aaronaught):
var t = typeof(YourClass);
var pi = t.GetProperty("Id");
var hasIsIdentity = Attribute.IsDefined(pi, typeof(IsIdentity));
If you need to retrieve attribute properties then
var t = typeof(YourClass);
var pi = t.GetProperty("Id");
var attr = (IsIdentity[])pi.GetCustomAttribu...
Button in a column, getting the row from which it came on the Click event handler
I've set the itemsource of my WPF Datagrid to a List of Objects returned from my DAL. I've also added an extra column which contains a button, the xaml is below.
...
Can an Option in a Select tag carry multiple values?
...ecurity problem in his code while evaluating the input. The best way to avoid this is using JSON, as suggested by @DavidHoerster, because the input is better behaved.
– fotanus
Aug 27 '13 at 19:10
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What exactly is a C pointer if not a memory address?
...s a compiled or interpreted language.
A pointer value can be some kind of ID or handle or a combination of several IDs (say hello to x86 segments and offsets) and not necessarily a real memory address. This ID could be anything, even a fixed-size text string. Non-address representations may be espe...
Remove ALL white spaces from text
This is a snippet from my code. I want to add a class to an ID after getting another ID's text property. The problem with this, is the ID holding the text I need, contains gaps between the letters.
...
ExpressJS - throw er Unhandled error event
...nd kill process, follow these steps:
ps aux | grep node
Find the process ID (second from the left):
kill -9 PRCOCESS_ID
OR
Use a single command to close all the running node processes.
ps aux | awk '/node/{print $2}' | xargs kill -9
...
how to implement a long click listener on a listview
...tOnItemLongClickListener(new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int pos, long id) {
// TODO Auto-generated method stub
Log.v("long clicked","pos: " + p...
Disable Required validation attribute under certain circumstances
I was wondering if it is possible to disable the Required validation attribute in certain controller actions. I am wondering this because on one of my edit forms I do not require the user to enter values for fields that they have already specified previously. However I then implement logic that when...
Postgres: Distinct but only for one column
...re than 1 mio. rows), but I have also many duplicates. I select 3 fields: id , name , metadata .
3 Answers
...
MySQL: Insert record if not exists in table
...actually do what you were attempting:
CREATE TABLE `table_listnames` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`address` varchar(255) NOT NULL,
`tele` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB;
Insert a record:
INSERT INTO table_listnames (n...