![]() The problem is that in an application with master pages, the actual rendered name of the pnlModal div will likely become something like “ctl00_ContentPlaceHolder1_pnlModal” and Bootstrap won’t be able to associate it with the necessary JavaScript to show the dialog so the button does nothing. Why? The answer comes down to the “data-target” attribute of the invoking button, which is meant to tell Bootstrap the panel to activate: But try the same thing in an ASP.Net app with a master page and nothing happens. ![]() Pushing the button shows the dialog, and everything’s ducky. Most examples for using Bootstrap’s very robust dialog support go something like this: The popup shows up, but after it pops up the whole page becomes unusable.This is a short blog about solving a nasty problem with using Bootstrap’s Modal Dialogs with ASP.NET and Master Pages. In this article, I look at using the Bootstrap Modal in a Master/Details scenario, to display the details of the selected record in a master list. So not only was it not displaying right, the whole page is frozen. In this series, I will use the Northwind sample database to provide familiar data,and Entity Framework Core for data access. Bootstrap is included as the default UI framework for all Razor Pages applications built using the standard ASP. I found a StackOverflow post, below describing how the popup may have that behavior when it is nested inside elements that have positioning elements, which fits with previous experiences I have had. One of the answers described how appending the modal popup to the body of the page "$('#mytModal').appendTo('body') " would be a way of getting it out of any positioning elements. I m trying to implelement the same from aspx master page. Previously on a different page I had moved it out of some divs and it worked right. ![]() But the modal is not showing on button click from code behind. However in this particular site the modal is in a ASP.Net site as a user control where the "offending" positioning element is in the master page and it contains the user control. I stuck the script in the user control, but the behavior was the same. It displays over all other contents of current page. When I used Firebug I saw that I was getting a "$ is not defined" message. For simple transition effects, include bootstrap-transition.js once alongside the other JS files. First, we set the Modal's Title and Body, then display it, and finally update the UpdatePanel. The purpose of the Modal is to notify to users of something of applications or wait for users to enter information. If you're using the compiled (or minified) bootstrap.js, there is no need to include thisit's already there. A good practice to improve the page's loading speed is putting the Modal code at the end of the page, besides this helps you avoid any conflict with other UpdatePanels or elements. ![]() A more advanced and tricky suggestion: Put the Modal code at the end. With Jquery we need the Jquery reference defined before anything that uses it. Viewed the master page and the Jquery reference was at the bottom so I moved it before anything else. Add a new folder and add an Enum into that folder and give a suitable name like this. That fixed the issue, and now the modal shows right.ġ) Stuck this on the top of the user control to get it out of any elements that have positioning:Ģ) Had to move my jquery reference before other scripts in the master page. The code snippet for the CommonServices.cs class is given below.
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