Contents tagged with JavaScript
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Disabling a Trigger Control During Asynchronous PostBack
Often, we want to disable the control that triggered an asynchronous postback until the postback has completed. This prohibites the user from triggering another postback until the current one is complete.
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Maintain Scroll Position after Asynchronous Postback
Do you want to maintain the scroll position of a GridView, Div, Panel, or whatever that is inside of an UpdatePanel after an asynchronous postback? Normally, if the updatepanel posts back, the item will scroll back to the top because it has been reloaded. What you need to do is “remember” where the item was scrolled to and jump back to there after the postback. Place the following script after the ScriptManager on your page. And since the _endRequest event of the PageRequestManager happens before the page is rendered, you’ll never even see your item move!
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View Source Trick for Pages with Partial Rendering
Many people when developing want to look at the browser’s View Source to make sure that things are being outputted correctly or to see where in the DOM certain things are showing up. However, if you are using the Ajax concept of partial rendering (usually via UpdatePanels), what you get is the initial state of the page when it was first loaded before any partial page updates, not the state of the page as it is currently.
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Controlling the ASP.NET Timer Control with JavaScript
Have you ever wanted to control your <asp:Timer> control from client-side code?
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A Client-side Ajax Login for ASP.NET
A question was posed on the ASP.NET forums recently asking how to have a login control that doesn’t refresh the page. The ideal solution would be to just drop an ASP.NET Login control inside an updatepanel. However, the Login control (along with PasswordRecovery, ChangePassword, and CreateUserWizard controls whose contents have not been converted to editable templates) is not supported inside an UpdatePanel. They are just not compatible with partial-page updates.