What is AccessDataSource?
What is AccessDataSource?
The AccessDataSource class is a data source control that works with Microsoft Access databases. Like its base class, SqlDataSource, the AccessDataSource control uses SQL queries to perform data retrieval.
Which are the properties of the Access Datasource control?
The following are the features of the AccessDataSource control. Sorting – Set the DataSourceMode property to the DataSet value. Filtering – Set the FilterExpression property to a filtering expression used to filter the data when the Select method is called.
What is data source controls in asp net?
The data source controls in ASP.NET manage the tasks of selecting, updating, inserting, and deleting data on a webpage. There are multiple data source controls in ASP.NET. Each is meant to provide specialized access to a certain type of data, such as direct access to a database, objects, XML, or LINQ-based queries.
What is SQL data source?
An SQL database data source represents a relational database or another source of data that can be accessed using an SQL database DSA. A wide variety of commercial relational databases are supported, such as Oracle, Sybase, and Microsoft SQL Server.
What is the effect of creating a text box on form in MS Access?
Add a bound text box A bound text box displays data from a field in a table or query. On a form, you can use a text box that is bound to an updatable record source to enter or edit data in a field. The changes that you make in the text box will be reflected in the underlying table.
Which of these data source controls Cannot implement caching?
LinqDataSource does not have the Caching feature.
What are the different data controls?
The standard ASP.NET data presentation controls are:
- DataList.
- DetailsView.
- FormView.
- GridView.
- ListView.
- Repeater.
What is ASP ObjectDataSource?
The ObjectDataSource control enables developers to use an ASP.NET data source control while retaining their three-tier application architecture. The ObjectDataSource control uses reflection to create instances of business objects and to call methods on them to retrieve, update, insert, and delete data.
What are the different types of data sources?
There are three types of data sources:
- relational.
- multidimensional (OLAP)
- dimensionally modeled relational.
Can a form displays data from queries?
A form is a database object that you can use to enter, edit, or display data from a table or a query. You can use forms to control access to data, such as which fields of data are displayed.
What is the main purpose of a form?
A form is an object primarily intended for entering data or display information, or for application execution control in desktop software applications. Forms are used for entering, deleting and accessing documents. Forms are often used because they are an easy way to direct people to enter information correctly.
What is Data Control Example?
Information Security Protecting data from unauthorized access, modification, use or deletion. For example, secure authentication, authorization and encryption of data in storage and transit.
Where does the accessdatasource control come from?
The AccessDataSource control derives from the SqlDataSource class and is used to data-bind to a Microsoft Access database. The ConnectionString property for the AccessDataSource control is a read-only property. Instead of using the ConnectionString property, the DataFile property is used to point to the Access Database as shown below.
Where to find controlsource property in Microsoft Office access?
If the ControlSource property setting is an expression, the value displayed is read-only and not saved in the database. For example, you can use the following settings. For a control, data from the LastName field is displayed in the control. For a report group level, Microsoft Office Access 2007 groups the data on last name.
How to assign data source control in idatasource?
The DataSourceControl class provides a base implementation of the IDataSource interface and the IListSource interface, the latter of which allows you to assign the data source control as the DataSource of a data-bound control (via the new DataSourceId property discussed later) and expose the data therein as a list.
What are the properties of a datasourcecontrol?
Each DataSourceControl provides four properties for configuring caching; EnableCaching, CacheDuration, CacheExpirationPolicy, and CacheKeyDependency. EnableCaching is a Boolean property that determines whether or not caching is enabled for the data source control. The CacheDuration property sets the number of seconds that the cache remains valid.
