an example of using the get methods phần 2

... Server, always use the GetSql* methods and Sql* types rather than the Get* methods and the standard C# types. I showed you the Get* methods earlier only because they work with non-SQL Server ... signed integer between -2 31 ( -2, 147,483,648) and 2 31 - 1 (2, 147,483,647). SqlInt64 A 64-bit signed integer between -2 63 (-9 ,22 3,3 72, 036,854,775,808) and 2 63 - 1 (9 ,22 3,3 72, 036,854,775,807). ... between - 922 ,337 ,20 3,685,477.5808 and 922 ,337 ,20 3,685,477.5807. This is accurate to 1/10,000th of a currency unit. SqlSingle A 32- bit floating-point number between -3.4 028 23E38 and 3.4 028 23E38...

Ngày tải lên: 24/12/2013, 01:17

... Using the GetSql* Methods to Read Column Values In addition to using the Get* methods to read column values as standard C# types, if you are using SQL Server, you can also use the GetSql* methods. ... An Example of Using the Get* Methods Let's take a look at an example that reads the ProductID, ProductName, UnitPrice, UnitsInStock, and Discontinued columns from the Products table using ... the type of the database column. If you don't know the type of a column, you can get it using Visual Studio .NET's Server Explorer. For example, Figure 9.1 shows the details of the...

Ngày tải lên: 24/12/2013, 01:17

... Using the Get* Methods to Read Column Values Before I show you the other Get* methods that read column values, you need to know the standard C# types and the values they support. ... ( -2, 147,483,648) and 2 31 - 1 (2, 147,483,647). long Int64 A 64-bit signed integer between -2 63 (- 9 ,22 3,3 72, 036,854,775,808) and 2 63 - 1 (9 ,22 3,3 72, 036,854,775,807). sbyte SByte An 8-bit signed ... integer between -2 7 (- 128 ) and 2 7 - 1 ( 127 ). short Int16 A 16-bit signed integer between -2 15 (- 32, 768) and 2 15 - 1 ( 32, 767). string String A variable-length string of 16-bit Unicode...

Ngày tải lên: 24/12/2013, 01:17

... HKEY_LOCAL_MACHINE\SOFTWARE registry key is presented in Fig. 7. 12 . Figure 7. 12: An example of application registration information under HKEY_LOCAL_MACHINE\Software registry key The Microsoft Subkey The ... HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft subkey contains configuration settings for Microsoft software products installed on the local computer. One of the most important subkeys under HKLM\SOFTWARE\Microsoft ... HKLM\SOFTWARE\Microsoft is the HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion key. This key contains information on the software that supports Windows built-in services and the type and version number of the...

Ngày tải lên: 14/12/2013, 10:15

... recognizes the shorthand versions of the criteria described on Section 3 .2. 7.4 . Here it is, a Missing Manual exclusive, deep from within the bowels of Apple's Spotlight department: the master ... instrumentname 3.1 .2. 5. Boolean searches Mac OS X 10.5 adds another layer of sophistication to Spotlight searches by permitting what Comp Sci professors call Boolean searches. These are search ... 9, 20 08. As you can see, three range-finding symbols are available for your queries: <, >, and The < means "before" or "less than," the > means "after"...

Ngày tải lên: 14/12/2013, 10:15

... yourself all of this reading and use the Spotlight menu (or click the File Name button at the top of the window). But using the Search window offers you far more control, thanks to the second ... In many cases, you'll never even know or care where the file was—you just want to get into it. You can also double-click to open any of the folders in the folder map at the bottom of the ... your software robots), and so on. As software companies get around to it, they're also welcome to incorporate pieces of the Spotlight technology into their own programs. • • Get more...

Ngày tải lên: 14/12/2013, 10:15

... CustomerID = ANATR CompanyName = Ana Trujillo Emparedados y helados ContactName = Ana Trujillo Address = Avda. de la Constitución 22 22 using System; using System.Data; using System.Data.SqlClient; ... SqlCommand object to hold the SELECT statement SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); // step 5: set the CommandText property of the SqlCommand object to // the SELECT ... example to show that you can indeed read the locally stored rows- even when disconnected from the database. Step 12: Get the DataTable Object From the DataSet Object Get the DataTable object created...

Ngày tải lên: 24/12/2013, 01:17

... For example, the following code changes the name of the Table DataSet to Products and the Table1 DataSet to Customers: SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText ... Let's take a look at each of these techniques. Using Multiple SELECT Statements in the Same SelectCommand The following example sets the CommandText property of a SqlCommand object to two separate ... doesn't specify the name of the DataTable to be created. Instead, the names of the two DataTable objects used to store the result sets are automatically set to the default of Table and Table1....

Ngày tải lên: 26/01/2014, 07:20

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Ngày tải lên: 15/10/2013, 03:11

... type the new port number after the IP address of the computer to which you want to connect. If the new port is 8098, and the IP address of the server is 1 92. 168.1.8, the new IP address and port ... specified on the General tab of the TCP/IP properties window. To disable this feature, click the Advanced button on the General tab of the Internet Protocol (TCP/IP) Properties window. The Advanced ... Control Panel, select the Administrative tools option, and then start Users and Computers or Active Directory Users and Computers MMC snap-ins (depending on the role of your computer and whether...

Ngày tải lên: 07/11/2013, 08:15

... Next, the following example sets the InsertCommand property of mySqlDataAdapter to myInsertCommand: mySqlDataAdapter.InsertCommand = myInsertCommand; Setting the UpdateCommand Property of a ... stored procedure and sets the DeleteCommand property of mySqlDataAdapter to myDeleteCommand: SqlCommand myDeleteCommand = mySqlConnection.CreateCommand(); myDeleteCommand.CommandText = "EXECUTE ... mySqlDataAdapter.UpdateCommand = myUpdateCommand; Setting the DeleteCommand Property of a DataAdapter The following example creates a SqlCommand object named myDeleteCommand that contains a call to the DeleteProduct()...

Ngày tải lên: 14/12/2013, 13:15

... display the new form, as shown in Figure 6 .26 . Notice that the top part of the form shows the details for the row from the Customers table where the CustomerID is ALFKI; the bottom part of the ... form. These controls affect the rows in the master table, and you can add the following controls to your form: Note In this example, the parent table is the Customers table, and the child ... select the Single Record in individual controls radio button. The other check boxes in the dialog box allow you pick the controls you want to add to your Figure 6 .26 : The completed form The managed...

Ngày tải lên: 24/12/2013, 01:17

... permissions to other parts of the operating system in addition to their own user profiles. Power Users can create local users and groups; modify and can obtain a copy of the tool from another source ... eliminate the common weakness of Windows 20 00 and its predecessors, where most services run under the SYSTEM account (S-1-5-18) and can therefore do anything, whether they need to have such broad ... when the accounts are created. When you install a new copy of the operating system on the NTFS partition, the standard settings of the security subsystem are configured so that the members of...

Ngày tải lên: 21/01/2014, 04:20

... things occur. The current x and y positions of the mouse are recorded as the values of the x and y variables, respectively. These values are then used in a moveTo() action to move the beginning ... recorded and a line is drawn between its last and current position, resulting in a drawing. 2. With the Actions panel open, select Frame 1 of the Actions layer on the main timeline and add the following ... instance, canvas_mc, which will be used to define an allowable area in which to draw. The Icon layer contains the movie clip instance with an insect, just to the left of the stage. This instance...

Ngày tải lên: 21/01/2014, 13:20

... respected Lieutenant-Governor Major General Ross for the correctness of their statement, and for the situation of the Island. They have the approval of their fellow-subjects and of their conscience, but they ... out of the produce of the tax in any year after defraying the expenses of roads and embankments and unforeseen contingencies. And that the States of the said Island do not exceed in any case the ... in the circulation of their Notes, which have been issued for the benefit and advantage of the public, with the design of gradually diminishing the number annually. And in the event of such an...

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