Am I able to use asp:Repeater and Html.ActionLink together for creating a dynamic menu? Or is there any other methods that I can use it?
Note: I'm getting the menu list from SQL.
I'm going to assume you are using ASP MVC 1 or 2 if you're using HTML.ActionLink. If that is the case, what you'll want to do is pass your list of items to the view through your Model or ViewModel and in the view, create a for each loop to display the items instead of using a repeater control.
Another option is to create a partial view that you pass your list of menu items to and create the for each loop in there then render the partial where ever you need to show your menu.
if you put the menu in the Master Page it will automatically show up every where.
I think you can, there are a lot of information on the web about how to use asp controls in MVC code. also, MVC seems to have its own repeater: http://davidhayden.com/blog/dave/archive/2009/04/07/ASPNETMVCControlsASPNETMVCFuturesRepeaterControlExample.aspx
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Here's my scenario:
I need to create a page such that I have a view containing a DropDownList, then another (partial?) view beneath it that changes depending on what was selected in the DropDownList. I know how to code the DropDownList and make it work with the controllers, but I'm pretty stumped on how to achieve my goal.
The view that will change based on the DropDown has its own controller with CRUD operations (they contain grids). I should add that i'm using a shared view that contains a sort of template for a grid. There's lots of grids, but one view, and a controller for each grid. So I can't just call in the view as a partial view, as it would have no data. I'm essentially needing to call the controller for each grid, which then renders the view containing the grid.
So how can I do this?
you can use partial views to render your views, hence you can use Ajax to update the contents of any element or part of the rendered views dynamically.
you may use jquery to get the selected item value from the drop down list
I am using razor view engine(cshtml) outside of mvc framework. i.e only view is converted to cshtml format.
I make all database calls using webmatrix and construct cshtml view.
Although, now i want to fire dropdown list selected change event which will set or fill contents of another dropdown list on the same page.
Currently I use dropdown list using
#HTML.DropdownList("ID",List)
on the selectedindex change of dropdown, i wish to check it's value and then decide on whether or not to populate second dropdown.
How can I do it in this scenario? Remember, no mvc framework, hence no access to models or mvc specific methods.
when the dropdown list is rendered in the browser, it simply becomes a HTML tag and you can use vanilla javascript or frameworks like jQuery to check the item selected and load the next dropdown.
Sample:
$( "#myselect option:selected" ).text();
I have several web grids in a single view all working perfectly, except I now need to make one grid dynamic. It will populate once the user makes certain selections in ddl filters. The grid will not have a data source on pageload, I will need to send a json request to the controller but how do i create a placeholder for the grid? I can't use
#grid.GetHTML(...)
because it throws an error wanting a datasource. I was declaring the grid with a model initially:
var gridHistory = new WebGrid(
Commissions.Models.CommissionHistoryModel.getCommissionHistory());
But now that I don't know the data I need until after the user makes selections, I was going to try to do something like this (which throws an error since I'm not supplying a datasource):
var gridHistory = new WebGrid();
How can I supply a datasource when I don't have it at runtime?
you can create partial action (with httpget attribute) returning PartialView which contains your dynamic WebGrid. Each time user make changes to ddl you should render you partial via $.ajax to some placeholder in main view.
I believe the WebGrid has a shortcoming of not doing database level paging. If you have large amounts of data you will have some performance problems.
You might be interested in Dynamic MVC (http://dynamicmvc.com). It will perform dynamic database level sorting, filtering, and paging. It also exposes the the html in partial views so you can customize the html directly in more of an mvc style instead of a webforms control style.
In my ASP.NET MVC Webb app, I want a page to hold a DataGrid with ButtonColumns. To this I have a List<> of items that I want to represent in the DataGrid. By use of a textbox, I want the app (on the client side) to search the List<> for items matching the text string (preferably with LINQ).
What does this really require? Can this be done simply with Javascript? Do I need AJAX?
Does anyone here have experience with this kind of solutions?
Thanks!
You want to create a ViewModel of your List. Have a Grid on your view. You can use JavaScript&AJAX or post back to filter the grid. Most grids have filters built in.
I suggest you start on a MVC tutorial to get you started.
See ASP.NET MVC 4 Datagrid
I would like to move items from one list to another on a page, and I'm pretty flexible about what type of a list it is. What's the best way to do that? ASP.NET Ajax? jQuery? Anything else?
There's a nice tutorial on CodeProject that covers dragging with ASP.NET and jQuery:
http://www.codeproject.com/KB/webforms/JQueryPersistantDragDrop.aspx
if you want to do this and PostBack instead of using AJAX to update your data based on from fields you'll need to get creative about what types of controls you use. Page validation will complain about ASP controls like dropdownlists, listboxes, etc. if they contain selected items that weren't in the list when it was rendered.
Better to use AJAX to send back your updates or use HTML controls like unordered lists or select added via javascript and stuff the selected data in another control that doesn't complain (hiddenfield) on PostBack. The alternative is turning off page validation and I don't think that's a good idea.
You can also might look at YUI Library, I'd say it implements Drag & Drop in a very simple and flexible way:
http://yuilibrary.com/yui/docs/dd/
There are a lot of examples etc...