connecting to a database using asp net
Connecting to an Access Databasefrom ASP.NET
... computers. For a user account local to the IIS computer, create a duplicate account on the Access computer with the same name and password. Grant the user account Log on Locally and Access this ... requires permissions to access the share that contains the database file and folders. The user account must be recognized by the Access computer. For a domain user account, add it to the permissions ... that the TEMP and TMP environment variables are properly configured. Configure the Access server On the Access computer, the user account that is used to access the database requires Read,...
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Tài liệu Connecting to SQL Server Using Integrated Security from ASP.NET ppt
... so that their credentials are available to IIS. The following areas of the application need to be configured: ã Configure the ASP. NET application so that Integrated Windows Authentication ... [ Team LiB ] Recipe 1.8 Connecting to SQL Server Using Integrated Security from ASP. NET Problem You want to coordinate Windows security accounts between an ASP. NET application and SQL ... Connect to SQL Server from ASP. NET using Windows Authentication in SQL Server. Discussion Connecting to a SQL Server database provides two different authentication modes: Windows Authentication...
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Building a Sample Application Using ASP.NET AJAX
... 10:47 AM Page 239 226 CHAPTER 10 ■BUILDING A SAMPLE APPLICATION USING ASP. NET AJAXFigure 10-1. An ASP. NET AJAX-based stock applicationUnderstanding the Application ArchitectureThe application ... Let’s start by creating a new ASP. NET AJAX-enabled web site. Create the basic lay-out of the application along with the corresponding TabContainerand TabPanelcontrolsfrom the ASP. NET AJAX Control ... 17–23 ASP. NET AJAX. See also ASP. NET AJAXclient librariesarchitecture, 25–29Extensions, 28–29JSON, 28Microsoft AJAX Library, 26–27financial research application, 225–256application architecture,...
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Tài liệu Accessing a Database Using Visual Studio .NET ppt
... 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...
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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...
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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...
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Tài liệu Connecting to a Microsoft Excel Workbook ppt
... Create a SQL SELECT statement referencing a worksheet or a range in an Excel workbook and execute the statement to fill a DataSet using a DataAdapter or to create a DataReader. For example: ... INSERT INTO [MySheet$] (Field1, Field2, Field3) VALUES ('testdata', 1.234, '09/28/1979'); Retrieve data Use either a DataAdapter or a DataReader to retrieve data from an Excel ... 1-2. Example 1-2. File: ExcelForm.cs // Namespaces, Variables, and Constants using System; using System.Configuration; using System.Data; private OleDbDataAdapter da; private DataTable...
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Tài liệu Connecting to a Named Instance of SQL Server or Microsoft Data Engine (MSDE) docx
... Manager and Query Analyzer are also shared. The System.Data.SqlClient class cannot automatically discover the port number of a named instance of SQL Server listening on a port other than ... need to understand what a SQL Server or MSDE named instance is and how to connect to one. The sample code contains a single event handler: Connect Button.Click Creates and opens a connection to ... [ Team LiB ] Recipe 1.7 Connecting to a Named Instance of SQL Server or Microsoft Data Engine (MSDE) Problem You want to connect to a named instance of a SQL Server or Microsoft Data Engine...
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Tài liệu Updating a Database Using a DataSet doc
... act as a data cache in applications. You can modify the data in the DataSet, and later reopen the connection and send the changes back to the database. You can manually open a connection to a ... the data is valid. After all, you don't want to waste a round-trip over the network to the database and all those database resources if the operation is going to fail. Validate the changes ... Updating a Database Using a DataSet In the exercises so far in this chapter, you have seen how to fetch data from a database. Now it's time to show you how to update data. First,...
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Tài liệu Connecting to a Text File pptx
... provider can read records from and insert records into a text file data source. The Jet database engine can access other database file formats through Indexed Sequential Access Method (ISAM) drivers ... Namespaces, variables, and constants using System; using System.Configuration; using System.Windows.Forms; using System.Data; using System.Data.OleDb; // . . . // Create the data adapter ... data adapter to retrieve all rows from text file. The MaxScanRows option indicates how many rows should be scanned to automatically determine column type. A value of 0 indicates that all rows...
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Tài liệu Storing XML to a Database Field doc
... demonstrates how to store XML data in a text field of a database table and subsequently read it into an XmlDocument using the LoadXml( ) method. Standard database access techniques using a DataAdapter ... sender, System.EventArgs e) { DataSet ds = new DataSet( ); // Fill the Categories table and add it to the DataSet. SqlDataAdapter da = new SqlDataAdapter("SELECT TOP 3 * FROM Orders", ... System.Configuration; using System.Windows.Forms; using System.IO; using System.Xml; using System.Data; using System.Data.SqlClient; private DataTable dt; private SqlDataAdapter da; private...
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Using a DataGrid Control to Access a Database
... Server and a DataSet object. You'll learn the details on how to pull rows from the database into a DataSet in Chapter 10, and how to push changes made in a DataSet to the database in Chapter ... property, as shown in Figure 6.11. Using a DataGrid Control to Access a Database In this section, you'll learn how to use a DataGrid control to access the rows in a database table. Follow ... you'll add a SqlConnection object and a SqlDataAdapter object to your form. Note You use a SqlConnection object to connect to a SQL Server database, and a SqlDataAdapter object to move rows...
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Using a SqlConnection Object to Connect to a SQL Server Database phần 1
... reason, 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 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 ... 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...
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