Tài liệu Adding restrictions to datatable and datacolumn objects phần 2 pptx
Tài liệu Adding restrictions to datatable and datacolumn objects phần 2 pptx
... constraints to the DataTable objects. Next, you'll see how to add
restrictions to DataColumn objects.
Adding Restrictions to DataColumn Objects
In this section, you'll see how to add restrictions ... restrictions to the DataColumn objects stored in a
DataTable. Specifically, you'll see how to set the AllowDBNull, AutoIncrement,
AutoIncre...
Tài liệu Adding Restrictions to DataTable and DataColumn Objects phần 1 ppt
... also add restrictions
to a DataTable and its DataColumn objects. This allows you to model the same
restrictions placed on the database tables and columns in your DataTable and
DataColumn objects. ... call to
Fill().
You can use one of following ways to add restrictions to DataTable and DataColumn
objects:
•
Add the restrictions yourself by setting...
Tài liệu Adding Restrictions to DataTable and DataColumn Objects phần 3 ppt
... OrderID
myDataColumn.ColumnName = OrderID
myDataColumn.DataType = System.Int 32
myDataColumn.AllowDBNull = False
myDataColumn.AutoIncrement = False
myDataColumn.AutoIncrementSeed = 0
myDataColumn.AutoIncrementStep ... ProductID
myDataColumn.ColumnName = OrderID
myDataColumn.DataType = System.Int 32
myDataColumn.AllowDBNull = False
myDataColumn.AutoIncrement = False
myDataColumn...
Tài liệu Protecting SAM and Security Hives phần 2 pptx
... performance and reduce potential security risks. To remove the OS /2 and
POSIX subsystems, delete the \%SystemRoot%\system 32\ os2 directory and all of
its subdirectories, then use the Registry Editor to ...
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA registry
key and set this value to 0x2 (Hex).
In addition to these standard protective measures, Windows XP...
Tài liệu An Example of Using the Get* Methods phần 2 docx
... -2
63
(-9 ,22 3,3 72, 036,854,775,808) and 2
63
- 1 (9 ,22 3,3 72, 036,854,775,807).
SqlMoney A currency value between - 922 ,337 ,20 3,685,477.5808 and
922 ,337 ,20 3,685,477.5807. This is accurate to ... computers
and networks.
SqlInt16 A 16-bit signed integer between -2
15
(- 32, 768) and 2
15
- 1 ( 32, 767).
SqlInt 32 A 32- bit signed integer between -2
31
( -...
Từ khóa: