I am trying to extend controller with extension method which redirects to 404 page.
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However, controller.View() method is internal and can't be called outside class methods.
I would like to extend the HtmlHelper by using metadata (similar to DataAnnotaions metadata). Specifically I want to be able to add a 'Title' attribute to html controls that will then appear as a tooltip on the control. I would like to keep the tooltip text with my model, for example by adding 'Tiltle' metadata to the model as follows:
[DisplayName("User Id")]
[Title("Enter your 10 digit user id")]
property UserId { get; set; }
So the questions are:
1. How do I add metadata (such as 'Title') to my model?
2. How do I access this metadata in my HtmlHelper extension method?
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I am trying to create an extension to extend the HtmlTextbox methods to allow our developers to add onkeydown inline javascript to auto click a button with a name they specify.
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I have an extension method which I can use from the .cs codebehind of an aspx page, but if I try to do it in a code block in the aspx, it can't find the extension method. Is there something I need to add to the page?
View 2 RepliesHow can i transfer control to a controller's method from a controller's method..I am having two Controllers Home and User.. After username and password are verified inHome Controllers method , i want to show the User Controllers index page , so i have to callindex method of Home controller..How can i do it.
View 5 RepliesWhy will not fill View page of this controller method
public ActionResult Person()
{
testEntities6 testPersons = new testEntities6();[code].....
I need to write some dynamic queries for a project I'm working on. I'm finding out that a significant amount of time is being spent by my program on the Count and First methods, so I started to change to .Single, only to find out that there is no such method.
The code below was my first attempt at creating one (mostly copied from the Where method), but it's not working.
public static object Single(this IQueryable source, string predicate, params object[] values)
{
if (source == null) throw new ArgumentNullException("source");
if (predicate == null) throw new ArgumentNullException("predicate");
LambdaExpression lambda = DynamicExpression.ParseLambda(source.ElementType, typeof(bool), predicate, values);
return source.Provider.CreateQuery(
Expression.Call(
typeof(Queryable), "Single",
new Type[] { source.ElementType },
source.Expression, Expression.Quote(lambda)));
}
Has anyone had any luck getting MVC 3 working on IIS 6?I've added the .aspx extension to the controller in my global.asax file. I also have Default.aspx in the root of the project with the following code-behind:
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This is what my global.asax looks like:
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.NET 4.0 has been installed on the server, and is selected for the project. All of this, and I still get HTTP Error 404 -
i saw the extension method code but i could not understand what it is and what is the utilities of extension method.
View 3 RepliesI am using Tuple class in WCF Service. When i add reference to my web project I get Tuple class. Now i want to add an extension method to Tuple<> class in my service which will be accessible in my Web project.
View 1 RepliesI want to ask, does adding extension methods to datatypes works in the same way as Microsoft's methods or do they have any limitaion.
This is relevant to experienced programmers who had find some limitations while using them.
I recently found out about C# extension methods and wrote this one:
/// <summary>
/// Short-hand for setting the data source and binding it.
/// </summary>
/// <param name="me">The control to set and bind the data source of.</param>
/// <param name="dataSource">The data source.</param>
public static void BindTo(this DataBoundControl me, IEnumerable dataSource)
{
me.DataSource = dataSource;
me.DataBind();
}
What do you guys think? Is this a reasonable extension method to use in a professional ASP.NET project?
I have the following Extension Method
Imports System.Runtime.CompilerServices
Namespace Extensions
Public Module IntegerExtensions
<Extension()>
Public Function ToCommaDeliminatedNumber(ByVal int As Integer) As String
Dim _input As String = int.ToString
Select Case int
Case Is > 99999 : Return _input.Remove(_input.Length - 3) & "k"
Case Is > 9999 : Return Math.Round(Double.Parse(int / 1000), 1).ToString & "k"
Case Is > 999 : Return String.Format("{0:N0}", int)
Case Else : Return _input
End Select
End Function
End Module
End Namespace
And in one of my classes I'm using user.Reputation.ToCommaDeliminatedNumber I am importing the Extensions Namespace into the Class, but the error I'm getting is...'ToCommaDeliminatedNumber' is not a member of 'Integer?'. I do have other Extension Methods for Strings and Dates that work exactly as expected... I'm just at a loss on this one.
I know there is a ListBoxFor extension method among the ASP.NET MVC Html helper extension methods, but I always thought that a checkbox list is more user-friendly than a list box.
There was a very convenient CheckBoxList control in good old WebForms, but obviously that is out of the picture now. The question is, why is there no way in ASP.NET MVC to create a check box list? How can I write my own extension method that creates a check box list and behaves in a similar way ListBoxFor behaves?
I am stuck with the database row level security model that my predecessor has implemented on this project. I am trying to make an extension method for my linq to sql classes to make it easier to filter rows of data in my linq queries. The problem I am facing is that I need to somehow tell it how to access the primary key value of the object in the where clause. I get errors about DynamicInvoke(object[]) cant be converted to SQL. Here is a sample of what I am working with:
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How do I do this?
VWD 2008 Express. Visual Basic.
I am using the Directory.GetFiles method as follows:
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As expected, it returns files with the ".pdf" extension. I would like to be able to specify more than one extension (like "*.doc*" and "*.txt*", etc.). How can I use GetFiles to return files with more than one desired extension, without returning all files?
I'm binding an object to a gridview. The object (LeClient) consists of several variables, two of which are related to its phone number. One variable contains a string of digits (LePhone) and the other contains an int that represents the country code (LeCountryCode). I have an extension method for strings that works to format the string LePhone and that I'd like to pass it LeCountryCode as the parameter.
So far, on RowDataBound I have an event handler with the following line:
e.Row.Cells[5].Text = (string)(e.Row.Cells[5].Text).ToPhoneFormat(1);
I'd like to replace the 1 with the corresponding country code that's stored in the object LeClient associated with the row. How does this work? I tried
.ToPhoneFormat(e.Row.DataItem("LeCountryCode"));
Is it possible to select multiple entiies in ForEach Extension Method?
(i.e)
partial code is given
DataTableA.AsEnumerable().ToList().
ForEach(x=>
{
x.SetField<string>("Name","Jon Skeet"),
x.SetField<string>("msg","welcome")
});
when i apply multiple selection in ForEach
x=>
{
x.SetField<string>("Name","Jon Skeet"),
x.SetField<string>("msg","welcome")
}
I am unable to complete the statement.
I would like to know what the pros and cons are of creating an extension method v a partial view. From my understanding, htmlHelper extension methods are better as they enable one to unit test the view.
e.g. Assert.AreEqual(Html.Price(), "<td><tr><td>Price</td><td>4.50</td></tr>");
where the Price() method contains the presentation logic.
Since both the extension method and partial view are reusable, what then is the point / benefit of a partial view?
Inside my repeater I'm calling an extension method like so:
[Code]....
he above is giving me an "Object not set to an instance of a object" exception inside the extension method. If I comment the above expression out, it works fine, and the items are binded wtih no problems.
I am using MultiView and View in .NET but i am getting this error: Compiler Error Message: CS1061: 'ASP.default_aspx' does not contain a definition for 'NextView' and no extension method 'NextView' accepting a first argument of type 'ASP.default_aspx' could be found (are you missing a using directive or an assembly reference?)Source Error:
Line 24: THIS IS VIEW 1 . HAVE A LOOK ! iTS COOL BECAUSE OF C#.<br />
Line 25: <br />
Line 26: <asp:Button ID="Button1" runat="server" Text="nEXT" OnClick="NextView" /> Line 27: <br />
Line 28: <br />
Source File: c:UsersxxxxDocumentsVisual Studio 2012ProjectsWindowsAzure2TestCRoleDefault.aspx Line: 26
This is my aspx.cs code: using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System. Web.UI. WebControls;
namespace TestCRole{ public partial class _Default : Page { protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { MultiView1.ActiveViewIndex = 0; } } void NextView(object sender, EventArgs e) { MultiView1.ActiveViewIndex += 1; } void PreView(object sender, EventArgs e) { MultiView1.ActiveViewIndex += 1; } protected void MultiView1_ActiveViewChanged(object sender, EventArgs e) {
} }}
And this is my aspx file:
<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent"> <p> <br /> <asp:MultiView ID="MultiView1" runat="server" OnActiveViewChanged="MultiView1_ActiveViewChanged"> <asp:View ID="View1" runat="server"> THIS IS VIEW 1 . HAVE A LOOK ! iTS COOL BECAUSE OF C#.<br /> <br /> <asp:Button ID="Button1" runat="server" Text="nEXT" OnClick="NextView" /> <br /> <br /> </asp:View> <asp:View ID="View2"
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i need to find, string or boolean from database..
that is, i have a table i need to check that is string or boolean? to assigne other vairable?
using some extensions methods?
I have two webpages. Default.aspx and Default2.aspx
No code written in both pages.
I put an imagebutton without imageurl in Default2.aspx
The control is redirected to Default.aspx when Default2.aspx requests...
How does this happen?
when i run my webpage my personal webserver automatically redirects page to iisstart.htm page.my webageis not showing. what could be the problem?
View 12 RepliesI want to iterate through HtmlTable (Server Side) in ASP.NET 3.5.
foreach (System.Web.UI.HtmlControls.HtmlTableRow trow in someTable)
{
var x = trow.InnerText;
}
I received an error message that "System.Web.UI.HtmlControls.HtmlTable" does not contain a definition for GetEnumerator.
How to write an extension method or alternative to make HtmlTable as enumerable row collection?
