Validating data in vb net

Private Sub Compare Nulls() ' Create two new null strings. Dim a As New Sql String Dim b As New Sql String ' Compare nulls using static/shared Sql String. Caching is for providing solutions or the results to the users depending on their request, admin needs to recreate the pages often depending on user requests…STOP!!!"A cache simply stores the output generated by a page in the memory and this saved output (cache) will serve us (users) in the future.". NET validation controls define an important role in validating the user input data.Server-Side Validation: When validation occurs on the server, then it is known as Server-Side Validation. NET was developed in direct response to the problems that developers had with classic ASP. NET: Client-Side Validation: When validation is done on the client browser, then it is known as Client-Side Validation.Since ASP is in such wide use, however, Microsoft ensured that ASP scripts execute without modification on a machine with the . We use Java Script to do the Client-Side Validation.

Basically cookies are a small text file sent by the web server and saved by the Web Browser on the client's machine.Types For further information click on the link: Answer: A theme is a collection of settings that define the look of controls and web pages.These themes are applied across all the pages in a web application to maintain a consistent appearance.Themes are included images and skin files; the skin files set the visual properties of ASP. Themes are of two types: Page Theme A Page theme contains the control skins, style sheets, graphic files, and other resources inside the subfolder of the App_Theme folder in the Solution Explorer window.A page theme is applied to a single page of the web site.

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Using IS NULL to test for null values always works, regardless of the ANSI_NULLS settings for a connection. Null values are special, and their storage and assignment semantics differ across different type systems and storage systems. The following code example creates a Data Table with two columns defined as Sql Int32 and Sql String. Write Line(" Two nulls=", Sql String Equals(a, b)) ' Compare nulls using instance method String.

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