I don’t think there exists any meaningful application which does not have at least one “dropdownlist” control. Every user definitely knows what a “dropdownlist” is. The most important issue is that a “dropdownlist” can maintain two sets of values inside.
The first set of values display generally the “textual” information (which is visible to the user). The second set of values is “hidden” from the user. The user would never know about the “hidden” information. This flexibility is particularly necessary when you want to display only “student names” to the user and work with “regdno” behind the scenes. Of course, the user may not identify any student just with the “regdno”!
Not every scenario needs the two sets of values. Some may need only one set of values (both “text” and “value” would be the same). The “dropdownlist” control in ASP.NET supports both of these scenarios.
The process of attaching the “dropdownlist” control to a source of data is nothing but “data binding.” This process of “binding” can occur in several ways including databases, arrays, and so on. In this article, we will mainly look at the following ways to bind (or place) information into a “dropdownlist” control.
Binding to a Simple Array
Binding to an ArrayList
Binding to a hashtable
Binding to a data table
Binding to a data set
Binding to a data view
Binding to a set of objects
Binding manually
The above are the most frequently used “data binding” mechanisms when we work with a “dropdownlist” in ASP.NET. Now, let us go through each of those methodologies.
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| Author: Sebastian 13 Jun 2008 | Member Level: Gold Points : 1 |
This is very informative. Thanks for sharing the details.
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| Author: Gaurav Agrawal 19 Jun 2008 | Member Level: Silver Points : 2 |
Hi vivs,
Very nice article.
but I think some examples are missing.
But still good Post.
Keep Posting your resources and help your fellow developers.
happy porgramming
Regards
Gaurav Agrawal
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| Author: Kapil Dhawan 19 Jun 2008 | Member Level: Gold Points : 2 |
Hello
Nice piece of article
Thanks for sharing your knowledge with us.
I hope to see more good artile from your side
This articleis going to help lots of guys.
Ton Thanks to you
Regards,
Kapil
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| Author: Jins Philip 19 Jun 2008 | Member Level: Gold Points : 0 |
Cool
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| Author: UltimateRengan 01 Jul 2008 | Member Level: Diamond Points : 0 |
nice Articles.thanks for sharing your knowledge
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| Author: Roopesh Babu Valluru 15 Jul 2008 | Member Level: Gold Points : 0 |
xamples are missing...
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| Author: Nilla 17 Jul 2008 | Member Level: Silver Points : 0 |
nice information..thanks to sharing
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| Author: surender 01 Aug 2008 | Member Level: Silver Points : 0 |
nice article posted by u...
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