Asp.net ajax control toolkit download

Then we must add styles to your popup dialog. All done. Now hit the target button and a modal popup will pop up. While developing applications, we might have a requirement to show the modal popup from JavaScript, that we might need to open the popup and also close the popup dynamically using JavaScript. For example, a warning message that stays for only 2 seconds and then automatically closes. There are a couple of tricks to do that. We are going to discuss mostly all of them.

First let's discuss how we can open a modal popup without hitting a button or link. Assume that we have a modal popup all set in the page, and on page load we have to display a warning message.

Then we have to add BehaviorID property of modal popup extender control. Now define script to do our trick on pageLoad. PageLoad is a function that script manager automatically invokes when the page is loaded on the client side. In page load, we are going to add code to show the modal and again hide the popup after some period. Alternately we can auto raise the click JavaScript event of the targetcontrolid using JavaScript to show the popup and also raise the click event of the cancel control of the popup to hide the popup again.

In this section, we are going to see how we can use an iframe inside the modal popup and discuss some scenarios in which it can become handy to use an iframe inside the modal popup.

Let's get started with a simple example. In this example, we are going to use a modal popup that will be used as a three step wizard control to add a new expense item. The wizard will be a separate page in which we will put our three steps beside a multiview ASP.

NET control. In the first step, we are going to show the input panel for the client, upon use save data we are going to display a simple success message or an error message. If the data is saved successfully, the modal will close after showing the success message and if error occurs, we will show the error message and take us to the first step again.

We will also implement the whole wizard in a separate aspx page and we will display this page using an iframe inside a modal popup. In this section, we have a few problems. First the okay and cancel button of the modal. Since okay and cancel button of wizard are part of the wizard that is inside the iframe modal popup, extender will be unable to find it while loading the extender in the first place.

So we got to add okay and cancel controls outside an iframe and then hide the controls. In a later section, we are going to see how we can handle the okay and cancel from the iframe source page.

We have already seen how to show a framed content inside a modal popup. In this section, we are going to see how we can close the modal popup from the iframe source page.

As we can see in the above source code, we have put our okay and cancel control twice. The okay and cancel button that are defined in the host page are for the popup extender, so that we can refer the buttons to the modal popup extender which will save us from any runtime error.

We also have two okay and cancel buttons in the source page of iframe, which will be used by the user to do okay and cancel the dialog. The host page's buttons are hidden to the user. In modal popup, if we put our okay and cancel buttons outside the iframe and if we click any of those buttons, it will close the modal regardless of whether we finish the job inside the modal or not. The code is given below.

When user hits the okay button in the wizard, we perform some operation and then we raise the click event of the host page's okay or cancel button to dismiss the dialog. In the previous example, we have seen how we can display a framed content inside a modal popup. In this section, we are going to discuss about displaying a customized version of framed content in modal popup. In our expense listing example, we have an edit button in gird item.

Let's say we don't want in place editing and when user clicks on the edit button, a modal window will popup with its relevant data.

There are many ways to implement this requirement. But for now, we are going to use iframe inside a modal and change the source of the iframe and add appropriate query string to the src property to show that it shows relevant data in the modal.

In rowdataboundevent , we have changed the attribute of the edit button to show a modal window. Configure the modalpopupextender in such a way so that its target control id does not show up. When user clicks on edit button on any item, a client JavaScript function is invoked with argument expense id. Now all we have to do is to set the iframe src property and then display the popup using client JavaScript. Below the complete code is given for better understanding. We can do a few tricks to show the page transaction from one edit window to another a little bit better.

NET 3. A server framework — included in ASP. NET server controls. These components are also available for ASP. NET 2. Microsoft Ajax Control Toolkit Download Components — The library provides an infrastructure to build either visual or non-visual JavaScript components.

A global JavaScript object — Sys. Application — is responsible for managing the lifecycle of client components. JavaScript extensions — An enhanced type system is introduced to emulate object-oriented constructs such as namespaces, classes and interfaces; and to perform reflection on client types. Abstraction API — Common operations on the DOM retrieving elements, setting styles and other manipulations are automatically translated by the library into browser-specific calls. Ajax — A set of client components is provided to handle Ajax requests and web-service calls.

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