In this tutorial, you can nest we'll see how UpdatePanels. UpdatePanels as much as you can if you want to nest, and there is no limit. In this example, two nested UpdatePanels will create one and other. From one single database, the DropDownMenu is nested UpdatePanel is selected from the current time is displayed, it appears people can see that we are updated.

The first thing to do is to create a sample database – or if you have your own, you can use. For this example we'll use a table with a few names and cities, as our data. You will need a ScriptManager, an DropDownList, a SqlDataSource, and UpdatePanel us to start with:

DataSourceID=”SqlDataSource1″ DataValueField=”id”
DataTextField=”name” AutoPostBack=”true” />

ConnectionString=”"
SelectCommand=”SELECT * FROM [tblPeople]” />

We have our DropDownList populated by SqlDatSource us, so that the names that appear in our database, which allows the user to choose. Notice that we also set the UpdatePanel UpdateMode of our conditional permit only reload when the DropDownList is selected, which is identical to the trigger added.
Then, we, UpdatePanel's ContentTemplate, and another UpdatePanel FormView control is added – this time one appears:

DataSourceID=”SqlDataSource1″ DataValueField=”id”
DataTextField=”name” AutoPostBack=”true” />

ConnectionString=”"
SelectCommand=”SELECT * FROM [tblPeople]” />

Person
Name:

City:

Current Time:

We have now added the FormView control to display the selected officers to the user, but does not currently do so, because it does not know who we have yet to choose. Please note that we are in the second UpdatePanel button to refresh the current time. This is to show that we can re-load only the nested UpdatePanel, the use of triggers, we are back to hijack attempt, but only load the UpdatePanel's.
In order to allow the FormView know that our choice from the drop-down items, we will add another SqlDataSource control to it to find information:

Please continue to ajaxtutorials.com to link to the following tutorial and code. Happy coding!