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ASP.NET 4.5 data binding model SelectMethod throw error


ASP.NET 4.5 data binding model SelectMethod throw error

By : m-2s
Date : November 22 2020, 12:01 PM
it helps some times I confused with this new pattern. Everything is looking simple when you are reading tutorial. But the simplest task I cannot complete - bind data model to GridView. Here is GridView code: , Stupid mistake. I just mention wrong table name in ItemType.
code :


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JDBC connection to very busy SQL 2000: selectMethod=cursor vs selectMethod=direct?

JDBC connection to very busy SQL 2000: selectMethod=cursor vs selectMethod=direct?


By : slov abd
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Briefly,
selectMethod=cursor theoretically requires more server-side resources than selectMethod=direct only loads at most batch-size records into client memory at once, resulting in a more predictable client memory footprint selectMethod=direct theoretically requires less server-side resources than selectMethod=cursor will read the entire result set into client memory (unless the driver natively supports asynchronous result set retrieval) before the client application can iterate over it; this can reduce performance in two ways: reduced performance with large result sets if the client application is written in such a way as to stop processing after traversing only a fraction of the result set (with direct it has already paid the cost of retrieving data it will essentially throw away; with cursor the waste is limited to at most batch-size - 1 rows -- the early termination condition should probably be recoded in SQL anyway e.g. as SELECT TOP or window functions) reduced performance with large result sets because of potential garbage collection and/or out-of-memory issues associated with an increased memory footprint
Prepared statement, binding with wrong data doesn't throw an error

Prepared statement, binding with wrong data doesn't throw an error


By : Damien Corvan
Date : March 29 2020, 07:55 AM
it fixes the issue The i you supply as an integer is the type MySQLi will pass the value into the query as. However, the API itself doesn't actually care whether the value it gets a string or an integer. PHP/MySQLi will be sure to cast the string to an integer when passing it to the RDBMS.
Numeric-looking strings will therefore be cast to their integer equivalent. For non-numeric strings like your 'a', the result will be the integer 0, which may or may not match rows in your data.
code :
echo (int)'a';
// 0
update app_site_group set name_eng = 'one', name_fra = 'two'  where app_site_group_id = 0 
How can I perform Model Binding using SelectMethod when the query returns no records?

How can I perform Model Binding using SelectMethod when the query returns no records?


By : Kerim Yagmurcu
Date : March 29 2020, 07:55 AM
this will help The return type is IQueryable, so you should return an IQueryable, e.g.
code :
var query = from ba in dbContext.BankAccounts
            where ba.Id == acct.Id
            select ba;

return query;
Why assign string binding property in view model on worker thread won't throw Argument Exception

Why assign string binding property in view model on worker thread won't throw Argument Exception


By : Iskandar Setiadi
Date : March 29 2020, 07:55 AM
With these it helps After change binding property Color's type from SolidBrushColor to Color which is not inherit from DispatcherObject. It will not throw exception anymore.
And there's a similar question which got a good answer to it.
Android Data Binding build error: [data binding plugin]: failed to setup data binding

Android Data Binding build error: [data binding plugin]: failed to setup data binding


By : C.Jlars
Date : March 29 2020, 07:55 AM
it should still fix some issue With the new gradle 2.0.0 and Android Studio 2.0 I have only changed my app's gradle file by adding this -
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