I've the following code for a DropDownListFor and is working ok
@Html.DropDownListFor(Function(model) model.Habilitacoes, New SelectList(ViewBag.Habilitacoes, "KeyHL", "DescricaoHL"), New With {.class = "FillHSpace"})
[code].....
How do I modify or create my own Html.ActionLink helper to accept and handle the first parameter (linkText) passed in as an empty string / nothing?Details: I currently have a strongly typed view that's passed a model which contains search results. My view loops through each item in the model and attempts to display a link to a contact with the following code:
@Html.ActionLink(currentItem.ContactName, "contact", "details", New With { .id = currentItem.ContactID }, Nothing)
Normally this would work just fine, but not every item in my search result has a ContactName. The Html.ActionLink helper errors when this first parameter is empty. In case it helps, here's the model property for ContactName (which is generated from a template due to Database First, so I don't believe it can be modified):
Public Property ContactName As String
I'd like to have a helper function that simply returns nothing if the ContactName is an empty string / nothing.I'm guessing I need to extend this helper, and I've struggled to find any good, up-to-date resources in VB.net for extending helper functions. Other approaches are more than welcome if they're considered best practice. I'm working in VB.net, MVC3, and Razor in the ASP.net 4.0 framework.
How do I reference a Namespace in .NET MVC3 with the Razor view engine?
I understand this can be done in C#:
@using Namespace;
However in VB this doesn't seem to work:
@Imports Namespace
(i'm talking about inside a .vbhtml file)
I am working on MVC3, i have a situation where i want to do something like this:
<Div>
@Code
Dim i = 1
[Code]....
but razor is throwing wrong syntax error message. how to do this properly in side razor code.
Using MVC3 and Razor View engine, I created a VB.NET web application in VS 2010. This creates the default Account and Home Controller along with corresponding Action Views.Now if I open any vbhtml file I get the following error message in the Error List window.
Error 50 Syntax error. C:****MVC3AppVBViewsAccountLogOn.vbhtml MVC3AppVB
(See screenshot here http://www.flickr.com/photos/7672540@N07/5469248676/)
[code].....
I have a view that is displaying a Drop down list using the HTML helper DropDownListFor
[Code]...
I'm having an issue with the view setting the selected value on the drop down list if we are reloading the Search View. I've checked the View Model (ItemSearchViewModel) when it comes into the Search function and the Manufacturer is populated with the proper selected value and successfully passes that value back to the Search View. At some point the data passed to the view doesn't seem to populate the selected value, was wondering if anyone had some ideas on why this is happening and what I can do to fix it.
I am using Html.DropDownListFor to build a select list. It is a simple list of numbers from 1 to 100. One of the parameters - selectList As System. Collections.Generic.IEnumerable(Of SelectListItem) - is the list's options, which I have usually built manually, like this: [code] But this time I want a list from 1 to 100. And I refuse to manually create it :)Is there some sweet LINQ magic to build a list for me?
View 1 RepliesI'm following the ASP.NET MVC Tutorial and having started in VB.NET I'm having trouble converting the following razor code:
[code]...
on both the <li> tags. I understand I need to use line continuation but can't figure out where. I'd be greatful if you can point out the problem.
MVC 3 is great but in some cases I am having trouble translating the Razor syntax. Anyone know of a good VB.Net Razor reference?
View 1 RepliesTrying to create VB.net equivalent for following code and I get error
<ul>
@for (int i=0; i < ViewBag.NumTimes; i++) {
<li>@ViewBag.Message</li>
}
</ul>
how do I add this htmlAttribute on MVC 3 Razor view?
New With {.watermark = "sometext", .title = "sometext"}
I tried the C# way but it's not working (@watermark) but it's not working.
UPDATE here is the current usage I am trying but it's not working.
@Html.EditorFor(Function(model) model.FirstName, New With {.maxlength = "50"})
This isn't working either
@Html.EditorFor(Function(model) model.FirstName, New Object() {"maxlength=50"})
In the MVC 3 book by Steven Sanderson on p185 at the bottom, the following expression is used to render the paging links.
@Html.PageLinks(Model.Paginginfo, x=> Url.Action("List", new {page = x}))
What is the VB.NET equivalent? I am stuck on the x url lambda bit.
With the MVC3 Razor synax, one may render a string like so
@ViewData("photo")
My problem is: How can I append a dot to the above code.The following will result in a "Public member 'jpg' on type 'String' not found.
@ViewData("photo").jpg
I've tried the following code but does not produce my intended result:
@ViewData("photo") .jpg
@ViewData("photo"):.jpg
@ViewData("photo") & ".jpg"
I'm quite new to MVC and while I've been trying to follow the best practices , I believe I may not be understanding certain fundamentals of either
-a. Using models and viewmodels appropriately
-b. Passing models into a controller for validation purposes.
The general purpose of my program is to select a stored procedure from a list of stored procedures, create a form where the user can fill out all the appropriate input variables, and then to execute that stored procedure. The tool is for non-technical people, so I'm eventually going to have to do a good deal of input validation.
As such I have four models: A Script Model, a Parameter Model, a Parameter Enum model and a Query Model, and two viewmodels: a paramviewmodel that generates the form to fill out, and a scriptviewmodel that creates a listbox filled with the possible script choices. I am using a prewritten database system to fill out my viewmodels in an init method in my controller (which I'm not sure is the proper way to do this?).
The viewmodels are as follows:
Imports System
Imports System.Collections.Generic
Public Class ScriptViewModel
[Code]....
I'm trying to work out the functionality. Also, I think this may be too much code in the view, even though most of it is display code.
Anyways, I have two main questions. One, does creating a model in my controller, calling an init method on it, and then passing it to the view make any sense in an mvc context (if not, how would I proceed?). Two, if I want to perform validation on the form I output in my htmlhelper, but I want to use my query model validation (and not my paramviewmodel), how can I do that? Most of the examples I've seen involve a controller that recieves an appropriate model variable, and the binding is performed outside the controller itself. They then just check modelstate. Is there any way I could do something similar here?
Edit: Is there any way I can make the syntax highlighting less crappy?
I'm trying to implement a file upload system and I don't really get what to do.
I'm looking for the easiest way to do it. After long researches, I've found those explanations.
forums.asp.net/t/1678157.aspx/2/10
So, here is the things I've done inside the view :
@Code
Dim fileName As String = ""
If (IsPost) Then
[Code].....
Problem : GetHtml is not a member of 'System.Web.UI.WebControls.FileUpload'
What can I do to fix this? Is it the good way to handle file uploads?
Function Monitor() As ActionResult
Dim db = New QuarterDBContext()
Dim items As IEnumerable(Of SelectListItem) = db.getQuarter.[Select](Function(c) New
[code].....
Having issues getting myself started on MVC3.Trying to define a simple route here in Global.asax [code]
View 3 RepliesHow do I do this in Razor (VB.NET):
[Code]....
I have a razor.vbhtml view and would like to use string resources normally accessible via My.Resources. Seems like I can only get to My.Computer, My.Log and couple other namespaces from the view, but not My.Resources. I've tried changing access modifier to public and adding Imports, neither worked.
View 1 RepliesIs not the @Model MyModelClass notation not supported in VB Razor Views? It's not working for me. What is the construct for it?
View 1 RepliesI have this C# code in a Razor view:
@(Html.CheckBoxFor<RazorSamplesWeb.Models.SamplesModel>(i => i.IsActive))
I tried translating it to this:
@Code Html.CheckBoxFor(Of RazorSamplesWeb.Models.SamplesModel)(Function(i) i.IsActive)End Code
But it's complaining.
I just downloaded the MVC 3.0 RC and I'm excited to start using it, especially the Razor view engine. However, due to a few stick in the mud type people here, we are stuck using VB.NET instead of C#.When I started trying it out, I noticed some quirks. If you are creating a Razor view using CSHTML, you can write code like this:
@foreach(string genreName in Model.Genres)
{
<li>@genreName</li>
}
Razor will automatically detect that the <li> text is an HTML tag and will switch out of "code mode". With a VB.NET VBHTML file, this doesn't seem to be working. It's making me put the @: keyword in front of each line like this:
@For Each genreName As String In Model.Genres
@:<li>@genreName</li>
Next
If I don't have it there, I get a runtime error. Also, the <text></text> tags don't seem to work.
I am new to Razor view syntax and as most of the examples are in C# in coverting the below Razor syntax to vb.net
<div>
@using (Html.BeginForm())
{
[code].....
I am getting extra whitespace characters rendered in my horizontal list of anchor tags below. This is causing a major CSS styling issue for me. I know this question has been addressed as far as a C# workaround is concerned (asp.net mvc razor extra space), but can anyone help me with a VB workaround? I don't have the advantage of curly braces to eliminate all whitespace in a single-line If condition.
I have managed to work around it for now by writing an HtmlHelper extension method, but this dynamic code is only used in one place (the master layout page). It seems to me that this should really be done in the .vbhtml page. Here is the erroneous code, along with commented-out attempts at workarounds. The goal is to create a horizontal list of "sibling" pages based on a site map, with slightly different styles for the current page's link and the link just before it. [Code]
This should not be as hard as it seems to be, but I can't for the life of me create a table in VB using Razor syntax. The following does not work (despite what some examples would lead me to believe):[code]
View 2 RepliesI need to get the selected value of a ComboBox in a DataGridView. I have it partially working, but I get a Null Reference Exception if I change a another ComboBox in the grid.[code]...
View 5 RepliesI read a lot topic in this forum about how to set a SelectedValue in aDataGridViewComboBoxColumn but nothing was useful for me. I dont know why, maaybe I dont know understand the problem.ets see: I have a DataGridView where one column is a DataGridViewComboboxColum. filled it. know read the selectedIndex with a EventHandelr and one Delegate created in the DataGridView EditingControlShowing event.This is the class with I Fill the DataSet for the ComboBox.
Public Class Expample1
Private code As String
Private name As String
[code].....
What is the meaning of 'selected value' in combobox properties?
I create a combobox with valuemember = ID (primary key, autonumber) and displaymember = name. How do I get it to select the row with ID of 10, for example?
[code]...
I am using ASP.Net MVC3 with MySQL Trying to figure out beast way to return sql result from controller to view and display output using webgrid help class.
tried following its not working.Controler code
data = New DataTable
da = New MySqlDataAdapter("SELECT * FROM " + tables.SelectedItem.ToString(), conn)
cb = New MySqlCommandBuilder(da)
da.Fill(data)
ViewData("grid") = data
[Code]...
I have a MVC application, which creates a Chart in the business logic like this:
StatisticsModel.Chart.Width = 150
StatisticsModel.Chart.Height = 300
StatisticsModel.Chart.Attributes.Add("align", "left")
StatisticsModel.Chart.Titles.Add("Statistics for: " + StatisticsModel.ProductNumbers)
StatisticsModel.Chart.ChartAreas.Add(New ChartArea)
[Code]...