connecting a form to a database using php
Converting a DataReader to a DataSet
... You can use this table [ Team LiB ] Recipe 5.3 Converting a DataReader to a DataSet Problem You need to transfer data from a DataReader to a DataSet. Solution Create a DataTable schema ... DataReader. while(dr.Read( )) { // Read the row from the DataReader into an array. dr.GetValues(aData); // Add the row from the array to the DataTable. dataTable.Rows.Add(aData); } } } ... the data store. BaseColumnName The name of the column in the data store. BaseSchemaName The name of the schema in the data store. BaseTableName The name of the table in the data store. DataType...
Ngày tải lên: 07/11/2013, 13:15
Using a SqlConnection Object to Connect to a SQL Server Database phần 1
... ADO.NET automatically stores database connections in a pool. Connection pooling offers a great performance improvement because you don't have to wait for a brand new connection to the database ... illustrates how to use a SqlConnection object to connect to a SQL Server database */ using System; using System.Data; using System.Data.SqlClient; class MySqlConnection { public static ... database to be established when there's a suitable connection already available. When you close a connection, that connection isn't actually closed; instead, your connection is marked as...
Ngày tải lên: 07/11/2013, 10:15
Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc
... class. The following example defines a method named StateChangeHandler to handle the StateChange event. You'll notice that the second parameter to this method is a StateChangeEventArgs ... System; using System.Data; using System.Data.SqlClient; class StateChange { // define the StateChangeHandler() method to handle the // StateChange event public static void StateChangeHandler( ... request to the database; two examples of states are open and closed. You use the Connection object's State property to get the current state of the connection to the database. The State property...
Ngày tải lên: 14/12/2013, 13:15
Tài liệu Use a Single Windows Form to Update Multiple Lookup Tables Just about every database application pptx
... hassles trying to track the data table directly. dtFromGrid = CType(dgTableData.DataSource, DataTable) ' Commands necessary to actually post back to server. modaLookupData.Update(dtFromGrid) ... ByVal e As System.EventArgs) Handles lstLookupTables.SelectedIndexChanged Dim dtData As New DataTable() Try ' Update the data adapter and data table to reflect the new data, ... the modaLookupData data adapter, and it is used to update the data table. The Update method of modaLookupData is executed, followed by the AcceptChanges method of the dtFromGrid data table....
Ngày tải lên: 14/12/2013, 20:16
Tài liệu Connecting to a Password-Protected Access Database ppt
... result.ToString( ); } Discussion A Microsoft Access database password requires that users enter a password to obtain access to the database and database objects. This is also known as share-level ... those defined by ADO.NET. To open a database secured by a Microsoft Access database password, use the Jet OLEDB :Database Password attribute in the connection string to specify the password. This ... security. A password does not allow groups or users to have distinct levels of access or permissions. Anyone with the password has unrestricted access to the database. The Set Database command from...
Ngày tải lên: 24/12/2013, 05:15
Tài liệu Connecting to a Secured Access Database pptx
... Team LiB ] [ Team LiB ] Recipe 1.4 Connecting to a Secured Access Database Problem You want to connect to a Microsoft Access database that has been secured with user-level security and ... The sample code contains a single event handler: Connect Button.Click Creates and opens a connection to a Microsoft Access database secured with user- level security and a workgroup file using ... defined by ADO.NET. To open a database secured by Microsoft Access user-level security, use the Jet OLEDB:System Database attribute in the connection string to specify the path and filename of...
Ngày tải lên: 24/12/2013, 05:15
Using eliciting question as a technique to teach english to 11th form pupils
Ngày tải lên: 27/12/2013, 20:26
Tài liệu Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database pdf
Ngày tải lên: 21/01/2014, 11:20
Using Oracle Clusterware to Protect A Single Instance Oracle Database 11g pot
Ngày tải lên: 30/03/2014, 13:20
Configuring a gateway to gateway VPN is easy using ISA Server
... Data Storage Location page, accept the defaults for where you want to put the Certificate database and Certificate Database Log. You have the option to Store configuration information in a ... Configuring a gateway to gateway VPN is easy using ISA Server. The reason why it’s so easy is that the Local and Remote VPN Wizards make the setup a virtual no-brainer. Well, it’s a no-brainer when ... obtained via the Web interface from a stand-alone root certificate server. In the second part of this article, we’ll install ISA Server, configure the gateway -to- gateway VPN using the Local and...
Ngày tải lên: 18/10/2013, 14:15
Use a Single Web Form to Update Multiple Lookup Tables
... mdtLookupData is being stored to a Session object entry called MyDataTable, and a Boolean variable called IsAdding is set to False. This last variable will be set to True when the btnAdd is clicked and ... strCurrValue As String ' Create the command builder to update (post) the data ' in the data grid ' back to the server. Dim odaTableData As OleDb.OleDbDataAdapter ... ListBox Name lstLookupTables AutoPostback True Label Name Label2 Text Lookup Table Data: DataGrid Name dgLookupData AllowPaging True PageSize 5 Label Name Label3 Text Errors: Another...
Ngày tải lên: 07/11/2013, 15:15
Tài liệu Accessing a Database Using Visual Studio .NET ppt
... free to experiment with the Server Explorer-that's the best way to learn. Once you've connected to the database, you can view things such as the tables. You can also retrieve and ... clicking the Show Diagram button in the toolbar and selecting columns from the table, as shown in Figure 3.29 . As you can see, I've selected the ContactName, CompanyName, and CustomerID columns ... tables. You can drill down to the tables in the database by clicking the Add icon in the tree in Server Explorer, and you can retrieve the rows from a table by clicking the right mouse button...
Ngày tải lên: 14/12/2013, 13:15