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• asp.net c# ip address lost after postback?

  - by Mark

  Hi all, One of my functions in a class is called GetIpAddress() which returns the following string: System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"] This all works well in regular page loads and gets my ip address, but when i for example let a user place a comment, then the ip address is lost after postback and i get an empty string returned. Am I missing something here maybe? Kind regards, Mark

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• ASP.NET AJAX weirdness

  - by LoveMeSomeCode

  Ok, I thought I understood these topics well, but I guess not, so hopefully someone here can clear this up. Page.IsAsync seems to be broken. It always returns false. But ScriptManager.IsInAsyncPostBack seems to work, sort of. It returns true during the round trip for controls inside UpdatePanels. This is good; I can tell if it's a partial postback or a regular one. ScriptManager.IsInAsyncPostBack returns false however for async Page Methods. Why is this? It's not a regular postback, I'm just calling a public static method on the page. It causes a problem because I also realized that if you have a control with AutoPostBack = false, it won't trigger a postback on it's own, but if it has an event handler on the page, that event handler code WILL run on the next postback, regardless of how the postback occurred, IF the value has changed. i.e. if I tweak a dropdown and then hit a button, that dropdown's handler code will fire. This is ok, except that it will also happen during Page Method calls, and I have no way to know the difference. Any thoughts?

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• ASP.NET MVC NullReferenceException when inheriting from a Base Controller

  - by rockinthesixstring

  I've got a base controller that I inherit all of my Controllers from. It's job is to basically set caching and error handling as well as check for mobile browsers. My UI works fine, but my Unit Tests are failing. Imports System.Web.Mvc <HandleError()> _ <CompressFilter()> _ <OutputCache(Duration:=30, VaryByParam:="id")> _ Public Class BaseController : Inherits System.Web.Mvc.Controller Protected Overrides Function View(ByVal viewName As String, ByVal masterName As String, ByVal model As Object) As System.Web.Mvc.ViewResult Dim ismobile As Nullable(Of Boolean) = Request.Browser.IsMobileDevice If ismobile Then Return MyBase.View(viewName, "Mobile", model) Else Return MyBase.View(viewName, "Site", model) End If End Function End Class The error I'm getting in my Unit test is on Dim ismobile As Nullable(Of Boolean) = Request.Browser.IsMobileDevice saying Object Reference Not Set To An Instance Of An Object.

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• Can i have One form tag inside Another in ASP.net MVC RC2

  - by coolguy97

  Hi all, I am currently Developing application in MVC2 I have want to used mutiple form tags in My application In My View I have Created a table which has Delete option which i am doing through Post for Individual Delete so i have Create form tag for each button. i also want user to give option to delete mutiple records so i am providing them with checkboxes.This form should have all the values of checkboxes and all. so form gets render Like this for Each delete button <form action="/Home/MutipleDelete" method="post"> <input class="button " name="Compare" type="submit" value="Mutipledelete" style="margin-right:132px;" /> <input id="chk1" name="chk1" type="checkbox" value="true" /> <form action="/Home/Delete" method="post"> <input type="submit" class="submitLink" value="member1" /> <input type="hidden" name="hfmem1" id="hfmem1" value="1" /> </form> <input id="chk2" name="chk2" type="checkbox" value="true" /> <form action="/Home/Delete" method="post"> <input type="submit" class="submitLink" value="member2" /> <input type="hidden" name="hfmem2" id="hfmem2" value="2" /> </form> </form> The following is not working . but IF i write my code that form renders in this way <form action="/Home/MutipleDelete" method="post"> <input class="button " name="Compare" type="submit" value="Mutipledelete" style="margin-right:132px;" /> </form> <input id="chk1" name="chk1" type="checkbox" value="true" /> <form action="/Home/Delete" method="post"> <input type="submit" class="submitLink" value="member1" /> <input type="hidden" name="hfmem1" id="hfmem1" value="1" /> </form> <input id="chk2" name="chk2" type="checkbox" value="true" /> <form action="/Home/Delete" method="post"> <input type="submit" class="submitLink" value="member2" /> <input type="hidden" name="hfmem2" id="hfmem2" value="2" /> </form> it is working in Mozilla but not in IE.I have debug and Checked values in formcollection In contoller.What to do.?

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• Selecting a Validation Framework - ASP.NET

  - by user102533

  Which validation framework would you prefer for a webforms application. This would be for a rather large complex app. I would want to specify rulesets and business validation in a single place and integrate it both on the client and server side. I'd prefer jquery for client side. Anyone has any suggestions?

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• Asp.Net(C#) inline coding problem

  - by oraclee

  Hi all; <% int i = Eval("NAME").ToString().IndexOf("."); string str = Eval("NAME").ToString().Substring(i + 1); %> <img src="../images/img_<%= str %>.gif" alt="" /> EVAL("test.txt") I need "txt" how to make ? Please Help Thank you

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• Partial views in asp.net mvc

  - by Renu123

  i am using partial view for my project but my problem is that my links are on right side of masterpage and when i clicked on particular link the view should displayed on left side on contentplace holder of master page. but right now its showing exactly below so my whole disgne is distrubed. so please if anyone know the solution tell me. thanks

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• Controller with same name as an area - Asp.Net MVC4

  - by Trober

  I have a Contacts controller in the main/top area, and I have an area named "Contacts". I get POST 404s to the Contacts controller if I register my areas before I register my top-level routes: protected void Application_Start() { AreaRegistration.RegisterAllAreas(); ModelBinders.Binders.DefaultBinder = new NullStringBinder(); RouteConfig.RegisterRoutes(RouteTable.Routes); } And, if I register my areas after my routes, my 404s to the Contacts controller goes away, but my routes to the Contacts area are now 404s. ...lots of duplicate controller name questions logged, but I haven't found a specific scenario where the area is the same name as the controller. ...probably an easy fix. Would appreciate help. :-D

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• Feedback form with the asp code

  - by vinu-arumugam

  Hi i need to generate feedback form in html(aspx) with the aspx.cs code? Can any one give some simple form?

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• Access Control inside GridView Pager Template - ASP.NET

  - by NullReference

  Hi, I am trying to access a LinkButton that is inside a PagerTemplate in a GridView. However, I am getting a NullReferenceException and I don't know what I am doing wrong here. I have tried the following... ((LinkButton)GridView1.BottomPagerRow.FindControl("lnkbtnPrevious")); ((LinkButton)GridView1.FindControl("lnkbtnPrevious")); Can someone please help? Thanks!

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• ASP.Net Roles: Page-Level Security Question

  - by jlrolin

  We're currently in the process of re-creating a brand new security model that dwarfs our existing process. Right now, we plan on grabbing a user's roles during the login process and then using a Base Page class to check if the user has the role of the corresponding page the user is navigating to. We can limit the menu's options by the user's roles as well, but we have had problems with users navigating to pages in our system by typing them in or having old bookmarks. Obviously, we need some sort of page level access. A simple function in our Base Page class that checks the role in the Arraylist against the page's assigned role would work, but I was wondering if there was any built-in functionality to support this or a cleaner solution possibly.

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• a href nested in DIV element in ASP.NET C#

  - by Gal V

  Hello all, My question is quite simple, I created a DIV, with a HyperLink control in it. As following: I created an 'onclick' event in jQuery for the DIV as well: $('#divOne').click(function() { alert('You clicked on the DIV element'); }); My goal is to trigger this event when the DIV area is clicked (working fine), BUT- When the HyperLink is clicked, I need the page to redirect WITHOUT triggering the DIV 'onclick' event (can use JavaScript or jQuery as needed). Thanks all!

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• ASP Function that returns result from stored procedures

  - by Brad

  I am working on a project that requires me to hop into to separate DB's. So I have figured that I need to have multiple functions inside of my VB page. The only problem I am having,is I am not to sure how to get this all accomplished. So far I have figured out the overall structure, just need help implementing that structure. Here is my idea: The main Function would call two other functions. We can Call them Sub Function 1 and Sub Function 2. So, the main Function takes the saved sessions information for the E-mail address and dumps in into Sub Function 1. It needs to open up a new connection to the db/stored procedure and RUN the following procedure and then return the result. Here is the stored procedure and what i think is correct. CREATE PROCEDURE WEB_User ( @EMAIL_ADDRESS varchar(80) = [EMAIL_ADDRESS] ) AS SELECT MEMBER_NUMBER FROM WEB_LOGIN WHERE EMAIL_ADDRESS = @EMAIL_ADDRESS So my question is, what is the function suppose to look like? how do I send the session information to the procedure? and finally, how do I return the stored procedure results and push back into the main function so it can be carried into sub function 2? Thank you in advance for your help... I really appreciate it!

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• ASP.NET MVC submitting json array to controller as regular post request (nonajax)

  - by j3ko

  All the examples of json I can find online only show how to submit json arrays w/ the jquery command $.ajax(). I'm submitting some data from a custom user control as a json array. I was wondering if it's possible to submit a json array as a regular post request to the server (like a normal form) so the browser renders the page returned. Controller: [JsonFilter(Param = "record", JsonDataType = typeof(TitleViewModel))] public ActionResult SaveTitle(TitleViewModel record) { // save the title. return RedirectToAction("Index", new { titleId = tid }); } Javascript: function SaveTitle() { var titledata = GetData(); $.ajax({ url: "/Listing/SaveTitle", type: "POST", data: titledata, contentType: "application/json; charset=utf-8", }); } Which is called from a save button. Everything works fine but the browser stays on the page after submitting. I was thinking of returning some kind of custom xml from the server and do javascript redirect but it seems like a very hacky way of doing things. Any help would be greatly appreciated.

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• ASP.net repeater, scroll 3 at a time

  - by Christo Fur

  I have a list of data that I need to display in a web page 3 at a time The first needs to be displayed in a div called "left" , the second in a div called "centre" and the third in a div called "right". And I need to be able to scroll through the data with a pager. And so the next 3 results will be displayed in a similar way, and so on till the end of the data set Obviously the alternating templates in the repeater are not suitable for this. Is there a smarter way to achieve this?

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• Empty Postbacks on ASP.NET pages

  - by AaronLS

  We are having a problem that seems to only be a problem when accessing our websites from internal intranet machines. When logged into the domain, and accessing our websites, postbacks are not working. Basically the page behaves as if it were refreshed and nothing was changed. When logging the GETs and POSTs with an HTTP analyzer, the post is complete empty and the ContentLength is 0. It is also very sporadic, but seems to be happening fairly often. In the case where it failed, we could see that there was an extra item in the Header for the POST, it was "Authorization" and the value was the word "Negotiate " followed by a space and then a bunch of characters and two equal symbols at the end, which looked like some kind of base64 encoded value. In a case where it succeeded, this Authorization item was no in the header, but I have logged more than one successful cases to know if that is consistent. We have seen this occur only with IE8 so far, and when it occurs it is sometimes sporadic. I can close and open the browser and it will begin working sometimes, and other times it is still broken. What might be causing the postback to be empty? This means the viewstate is not sent to the server which makes the page basically broken. It seems to certainly be a client side issue, but not sure if it's not aggravated by some server settings. Thanks in advance.

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• Set Materpage from Global.asax in ASP.NET

  - by StefanE

  Hi, I want to set the Masterpage property in Global.asax. This is what I have done but I get a NullReferenceException on the first line.. Any ideas how to do this? protected void Application_PreSendRequestContent(Object sender, EventArgs e) { System.Web.UI.Page page = System.Web.HttpContext.Current.Handler as System.Web.UI.Page; if (Session["lang"] == "eng") { page.MasterPageFile = "SideMasterPageEng.master"; } }

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• Invalid authorization specification error with Classic ASP accessing SQL Server

  - by Scott

  Hi, I am getting the following error: Invalid authorization specification I've narrowed down the error to my connection string. I have verified the server name, database, user & password are correct. Here is the string: "Provider=SQLOLEDB;Server=xxxxx.db.12345.hostedresource.com;Database=foo;UID=fooUser;PWD=fooPW" The SQL server is hosted on Godaddy so I don't have access to its settings. Please help, I've scoured the internet for a solution!

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• modifying MetaData in asp.net Dynamic Data

  - by loviji

  Hello. I want to modify MetaData. For example, let's work with Details.aspx page. There have code: protected void Page_Init(object sender, EventArgs e) { table = DynamicDataRouteHandler.GetRequestMetaTable(Context); FormView1.SetMetaTable(table); DetailsDataSource.EntityTypeName = table.EntityType.AssemblyQualifiedName; } Now, how to force to modify table.

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• Jquery .Ajax error when trying to POST data in ASP.NET MVC

  - by GB

  I am unable to access an action in my controller using .ajax. The code works on my development machine but as soon as I place it on the server it gives the error 401 Unauthorized. Here is a snippet of the code in the .aspx file... var encoded = $.toJSON(courseItem); $.ajax({ url: '<%= Url.Action("ViewCourseByID", "Home") %>/', type: "POST", dataType: 'json', data: encoded, //contentType: "application/json; charset=utf-8", success: function(result) { Update: The only time this doesn't work is when I pass json data to the Ajax call, it works fine with HTML data.

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• Client-side session timeout redirect in ASP.Net

  - by Mercury821

  I want to build a way to automatically redirect users to Timeout.aspx when their session expires due to inactivity. My application uses forms authentication and relies heavily on update panels within the same aspx page for user interaction, so I don't want to simply redirect after a page-level timer expires. For the same reason, I can't use '<meta http-equiv="refresh"/>' What I want to do is create a simple ajax web service with a method called IsSessionTimedOut(), that simply returns a boolean. I will use a javascript timer to periodically call the method, and if it returns true, then redirect to Timeout.aspx. However, I don't want calling this method to reset the session timeout timer, or the session would never time out because of the service call. Is there a clean way to avoid this catch-22? Hopefully there is an easy solution that has so far eluded me.

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• Asp .net drop down width

  - by Prashant

  I have a drop down. I want the drop down to be of 200 px width but when some one clicks on the drop down button,(the contents which come below the drop down )should be of a greater width(say 300 px or self adjusting width based on text). Is that possible ?

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• Simple C# ASP.NET Cache Implementation

  - by Brian David Berman

  I need to build up a List<object> and cache the list and be able to append to it. I also need to be able to blow it away easily and recreate it. What is a simple way to accomplish this?

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• ASP NET Custom Routing

  - by Botem Bao

  I have following patterns /invitation/mission/busstop -- return the list of busstops /invitation/mission/busstop/id -- return a specific busstop /invitation/mission/driver -- return the list of drivers /invitation/mission/driver/id -- return a specific driver /invitation/mission/driver/city/model/limit -- query driver accoring to city, model and age limit ... /invitation/questionair -- return the list of questionairs /invitation/questionair/id -- return a specific questionair /invitation/questionair/create -- create a new questionair /invitation/questionair/update/id -- update a questionair ... I expect the 'invitation' to be controller, and the rest to be action. Each of the above url should corresponds to a dedicated view page. Can anyone help me to design the routes? ===================================================================== I update the patterns, and add my expectation at the end of each url. Any suggest on the url patterns?

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• Capture and handling the tab/Textchanged event in a textbox in asp.net MVC

  - by Icerman

  I have the following code th handle a user name validation on the server side. But the event seems not firing since break points in js or C# code didn't hit. Can anyone point out where I did wrong? Here is the user control which has a user name textbox: <%: Html.TextBox("UserName", Model.Username, new { maxlength = "40", size = "20", tabindex = "1", @onchange = "CheckAvailability()" })% CheckAvailability() is defined in the User.Validation.js and included in the above user control: $(document).ready(function () { function CheckAvailability() { $.post("/Home/Survey/CheckAvailability", { Username: $("#UserName").val() }, function (data) { var myObject = eval('(' + data + ')'); var newid = myObject; if (newid == 0) { $("#usernamelookupresult").html("<font color='green'>Available :-D</font>") } else { $("#usernamelookupresult").html("<font color='red'>Taken :-(</font>") } }); } }); Here is the survey controller function which will have server side validation: [HttpPost] public ActionResult CheckAvailability(string Username) { int Taken = 0; // This is where you add your database lookup if (Username == "abc") { Taken = 1; } return Json(Taken); }

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