Why viewstate is empty

Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid. Related Questions. Unable to make the session state request to the session state server. Difference between Sessions and View state. Session Vs View state. View state issue with server control. View state. Layout: fixed fluid. Web01 2. Strip HTML. Encode HTML. Paste as-is. Code block. Quoted Text. It is null. So in the if condition code returns and ViewState is not set.

Home Categories. Need Help? Our Support Team is here to help. Ask Question. How to fix this or have any way to get data and show on web view. Load fires first. However, developers should avoid above approach unless really necessary. Using this to store too much information will affect negatively final page output size and page transmission performance.

The code may also be confusing to be read by other developers. Objects can also be stored in view state. However, they must be instances of a serializable class. To make a class serializable, you should declare its serializability by using an attribute right before declaring the class :.

When you retrieve view state data for custom objects, you should always cast it:. This site uses Akismet to reduce spam. Learn how your comment data is processed. Previous Next. View State Probably the most common solution for above problem. To solve this problem developers have two options: Using hash code : ASP. NET checks the view state data, just before the final page is rendered. Then is uses a hashing algorithm to run the view state data through.

So, it means every time page information or control value would be lost during round trips. If you fill a form and send it to server for processing but after round trips [when page return from server] then every data would be lost. To overcome this, ViewState technique has introduced. View State uses HiddenField to store page information or control value in key-value format and value stored in baseencoded strings encrypted format.

View State can enable or disable the View State on control level, page level. By default View State is enabled for page. You can enable or disable ViewSate on page level in page directive. You can change EnableViewState value to true or false. I hope this post will help you. Please put your feedback using comment which helps me to improve myself for next post. If you have any doubts please ask your doubts or query in the comment section and If you like this post, please share it with your friends.

Hi, i want to display my data in descending order.. Add txtName.