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How to get number of rows using SqlDataReader in C#
...uble query, you can probably try something like that:
using (var sqlCon = new SqlConnection("Server=127.0.0.1;Database=MyDb;User Id=Me;Password=glop;"))
{
sqlCon.Open();
var com = sqlCon.CreateCommand();
com.CommandText = "select * from BigTable";
using (var r...
Coalesce function for PHP?
...
There is a new operator in php 5.3 which does this: ?:
// A
echo 'A' ?: 'B';
// B
echo '' ?: 'B';
// B
echo false ?: 'B';
// B
echo null ?: 'B';
Source: http://www.php.net/ChangeLog-5.php#5.3.0
...
How to set auto increment primary key in PostgreSQL?
...ossible to make primary key(existing column) in a table without adding any new column
– satish kilari
Aug 3 '16 at 13:33
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How do I drop a foreign key constraint only if it exists in sql server?
.../blogs.msdn.com/b/sqlserverstorageengine/archive/2015/11/03/drop-if-exists-new-thing-in-sql-server-2016.aspx
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Update relationships when saving changes of EF4 POCO objects
...ides modified content of the entity which has to be recreated, attached to new context and persisted. Recreation usually happends outside of the context scope (layered architecture with persistance ignorace).
Solution
So how to deal with such disconnected scenario? When using POCO classes we have...
How to handle ListView click in Android
...is lv, do the following-
lv.setClickable(true);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
Object o = lv.getItemAtPosition(position);
/* write you handling code li...
ASP.NET MVC 5 - Identity. How to get current ApplicationUser
...et the full object of currently logged ApplicationUser ? While creating a new article, I have to set the Author property in Article to the current ApplicationUser .
...
Find() vs. Where().FirstOrDefault()
...st of Test class having id and name properties.
List<Test> tests = new List<Test>();
tests.Add(new Test() { Id = 1, Name = "name1" });
tests.Add(new Test() { Id = 2, Name = "name2" });
tests.Add(new Test() { Id = 3, Name = "name3" });
tests.Add(new Test() { Id = 4, Name = "name2" }...
Cast Int to enum in Java
...
@brunsgaard I assume values() generates a new array each time, because arrays are mutable so it wouldn't be safe to return the same one multiple times. Switch statements are not necessarily O(n), they can be compiled to jump tables. So Lorenzo's claims seem justified...
Where'd padding go, when setting background Drawable?
...ll be added to the current padding.
*
* @param view View to receive the new background.
* @param backgroundDrawable Drawable to set as new background.
*/
public static void setBackgroundAndKeepPadding(View view, Drawable backgroundDrawable) {
Rect drawablePadding = new Rect();
backgroun...