Xamarin forms - force show back button - xamarin.forms

I have a tabbed page, with 4 navigation pages in it.
I want the back button to show on the 'home' page of each of the navigation pages, and then I want to override the event so if its clicked on the home page it will go back to the previous tab (i'll keep track of the tabs they have been on myself).
I'm trying to show the back button on the root of each navigation page with this:
NavigationPage.SetHasBackButton(this, true);
But the back button doesn't seem to show up. How do I force the back button appear?

I think the best way is to not go for a back button. Remove it and add your custom button with the functionality you are looking for. The reason for this is because you're doing totally something different where the NavigationPage is designed for.

Related

Wordpress action on click

I'm trying to do a simple website on Wordpress. I got some buttons and I want them to add or remove a value from a variable on another page each time that button is clicked. How can I do that?

How to cancel tab change in Xamarin.Forms

I have a TabbedPage and it contains a few ContentPages.
As I do some edit in one of the pages, I intend to cancel both navigation back and changing the current tab page.
Unfortunately, the only reasonable event that I found is CurrentPageChanged which happens after the change of the current tab.
Can I somehow cancel the change of the current tab page?
From what I understand based off the question - In the property for whatever you are setting when you edit the Content Page you could have a function that would cancel the change there.

Meteor: Fire Event on Browser Back Button

I am using Meteor.JS and want to fire an event (Animating the Closing of a modal) when the user hits the Browser's Back button and want to avoid in some cases, that the back default behaviour happens (so only close modal, do not change page, at second click change page)
Consider using history.pushState to change the URL bar when your modal appears, so that going Back does the right thing. A library like backbone.js or a Meteor package like iron:router can help with this.

how to show popup with user control when clicking a button in webform?

i want to create a popup window when clicking on a button in webform and after that i want to show a user control in that popup.how to do in asp.net?
i tried with some jquery methods but nothing happens when clicking button?
i want to create a popup window when clicking on a button in webform and after that i want to show a user control in that popup.how to do in asp.net?
i tried with some jquery methods but nothing happens when clicking button?
Think about using an IFrame to achieve this, from the sounds of what you are talking an IFrame would suffice and provided the needed functionality.
<iframe src="YOUR PAGE HERE"></iframe>
There's a lot more you can do with it, these are just the tags to get you going.

Asp.net prevent modal popup to get displayed while clicking on browser back button

GoodEvening Everyone,
I am having one asp.net application which contains many links. some of the link displays modal popup Now if i move to link which nabvigates me and click on browser back button so modal popup gets display which i dont want. i need the previous page should get displayed instead of modal popup if i click on browser back button
for example
i clicked on link1 - navigated to page2
i clicked on link2 - displayed modal popup
i click on link3 - navigated to page3
Now if i click on browser back button so modal popup get displays instead of which i want the page2(previous page before the modal popup ) should get displayed.
So please let me know is this possible and how its possible.
It will be appreciated if some one provide me code to do this...
Let me know in case of more information required
There are several reasons this might be happening.
It might be that you are setting some state flags that persist between pages that influence the modal popups visibility. If you need help with this we will need some more details and preferably code samples.
It might be a browser caching issue. When you hit the back button the browser might be fetching the page from it's cache (not the server) with the popup visible. To test this you could disable the browsers cache and run through your process. If this proves to be the reason you can disable browser caching for your site by adding some meta tags (you'll find the exact tags on Google easily)

Resources