connecting to a database in asp net

... 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 ... 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 ... Execute, and Change permissions on the database file. The user identity needs Read, Write, Execute, Delete, and Change permissions on the folder containing the database files. The user account...

Ngày tải lên: 07/11/2013, 13:15

... attributes in addition to 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 ... ex.Message); } resultTextBox.Text = result.ToString( ); } Discussion A Microsoft Access database password requires that users enter a password to obtain access to the database and database ... is also known as share-level 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. ...

Ngày tải lên: 24/12/2013, 05:15

... 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 ... 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 ... 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...

Ngày tải lên: 24/12/2013, 05:15

... of ASP. NET AJAX. Using ASP. NET AJAX server controls is the easiest and quickest path to implementing AJAX functionality in your ASP. NET application. They are also ideal for when a minimal amount ... learned how to create a new AJAX-enabled ASP. NET site. Alterna- tively, you can just as easily create an AJAX-enabled ASP. NET web application if you have installed the Web Application Project add-on ... Additionally, you looked at the UpdatePanel control, which is at the heart of how ASP. NET AJAX enables AJAX functionality in existing ASP. NET pages using partial-page updates. This chapter gave...

Ngày tải lên: 05/10/2013, 10:20

... data file is the data container for Scott’s ToDo List application and resides in the App_Data folder of the site. You may have to manually add the ASP. NET user of your machine to this database ... sophisticated apps that need logical and physical separation of the data tier that has complex data objects and a data access layer. Summary The ToDo List application is an excellent example of an ASP. NET ... following scenario: You have a data-driven web page that needs to continuously alert the user with fast changing data, for instance, a page that displays the major financial indices in the U.S. capital...

Ngày tải lên: 05/10/2013, 10:20

... We will create a separate pages to insert these records (default.aspx) into database and list,update,delete records (list.aspx) from database. In this application we will have following 4-Tiers ... We will create a separate pages to insert these records (default.aspx) into database and list,update,delete records (list.aspx) from database. In this application we will have following 4-Tiers ... shown above (default.aspx and list.aspx pages). Try manipulating data and see how effectively its happening. This was a simple application, based on this architecture, you can create larger application...

Ngày tải lên: 17/10/2013, 14:15

... display an image from a database column in an ASP. NET control. Solution Fill an ASP. NET Image control from a database field by pointing the ImageUrl property of an Image control to a web page ... the database and retrieve the image using a DataReader. A DataTable or DataSet filled using a DataAdapter can also be used. 3. Set the ContentType property of the HttpResponse object to the ... Rendering an image from a database in a Web Forms Image control is easy to do, but not straightforward. Fortunately, it is much simpler with ASP. NET than it was in ASP. Two web pages are required:...

Ngày tải lên: 28/10/2013, 18:15

... within the data source, such as a row in a DataTable. The BindingContext class is used to instantiate a BindingManagerBase object and either a CurrencyManager or PropertyManager object is ... Database in a Windows Forms Control Problem You need to display an image from a database in a Windows Forms control. Solution Read the image into a byte array and load it directly into a PictureBox ... returned depending on the type of data source: • The CurrencyManager class inherits from the BindingManagerBase class and maintains a pointer for the current item in a data source that implements...

Ngày tải lên: 28/10/2013, 18:15

... in ASP. NET, page-level tracing and application- level tracing. In the lab, students will enable and disable tracing for an ASP. NET page. They will also add custom trace messages to an ASP. NET ... Trace 4 Application-Level Trace 9 Lab 5: Adding Trace to an ASP. NET Page 14 Review 15 Module 5: Using Trace in ASP. NET Pages Module 5: Using Trace in ASP. NET Pages 7 BETA MATERIALS ... will enable and disable tracing for an ASP. NET page. You will also add custom trace messages to an ASP. NET page and a middle-tier component. Module 5: Using Trace in ASP. NET Pages iii...

Ngày tải lên: 05/11/2013, 12:15

... 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 ... 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...

Ngày tải lên: 14/12/2013, 18:16

... ConfigurationSettings.AppSettings["Sql_Msde_ConnectString"]); 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 ... 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 ... 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...

Ngày tải lên: 14/12/2013, 18:16

... 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 ... schema.ini file provides the following schema information about the data in the text file: [ Team LiB ] Recipe 1.19 Connecting to a Text File Problem You want to use ADO .NET to access data ... Namespaces, variables, and constants using System; using System.Configuration; using System.Windows.Forms; using System.Data; using System.Data.OleDb; // . . . // Create the data adapter...

Ngày tải lên: 24/12/2013, 05:15

... 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 ... 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 ... // Create the data adapter. da = new SqlDataAdapter(selectText, ConfigurationSettings.AppSettings["Sql_ConnectString"]); da.UpdateCommand = new SqlCommand(updateText, da.SelectCommand.Connection);...

Ngày tải lên: 24/12/2013, 05:15

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Ngày tải lên: 23/03/2014, 12:20

... application users are on the same domain so that their credentials are available to IIS. The following areas of the application need to be configured: • Configure the ASP. NET application so that ... [ 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...

Ngày tải lên: 24/12/2013, 05:15