CS0120 Error - An Object Reference Is Required For The Non-static Field, Method, Or Property?
Mar 24, 2010
I am getting a CS0120 error when trying turn a button visible after checking some variables. In plain english, If AmmohelpSession.UserActions contains AmmohelpEnums.UserAction.ArticleEdit then turn the Edit button visible. Here is my comparison:
[Code]....
In the code behind for AmmohelpSession, a public class AmmohelpSession which contains a private variable: private HashSet<UserAction> _userActions; has been stated. In that same file, there is a public function for the UserActions that does a get or set method.In the code behind for AmmohelpEnums, we are setting byte variables to specific actions. Mine would be something like:
[Code]....
Where is my error coming from ?????
View 1 Replies
Similar Messages:
May 7, 2015
I'm using jQuery and setInterval method in my asp.net web application.
I call the webservice every 5 seconds in order to check for DB changes. When i see a change, i want to change the photo of the linkButton that located on the master page, but i can to that due to static constrains.
An object reference is required for the non-static field, method, or property 'System.Web.UI.Page.Master.get'
my c# code is:
[WebMethod()]
public static bool checkDBChange(string userId) {
DBConnection dbConnection = new DBConnection();
if (dbConnection.isChanged(userId)) {
((Site1)Master).SetImageUrl = "~/Icons/a.ico";
}
return false;
}
The SetImageUrl is a setter in my master page that sets the new url to the linkButton. How I can implement it?
View 1 Replies
Feb 15, 2010
I usually only write in ASP, so I am not very familiar with this script. Can anyone tell me how to how to request a querystring so I can use it to pull the image location. Like this.
PhotoCropper.aspx?userid=1090&picid=47
private const string ORIG_SAMPLE_PHOTO_URL = @"/PhotoCropperC/photos/1090/47.jpg";
I have tried just using Request.QueryString["userid"];, but I get the compiler error. Here is my code:
public partial class PhotoCropper : System.Web.UI.Page
{
//Make sure you give the IUSR_MachineName permissions to the directory below
private const string ORIG_SAMPLE_PHOTO_URL = @"/PhotoCropperC/photos/TheDog.jpg";
//private const string ORIG_SAMPLE_PHOTO_URL = "~/photos/TheDog.jpg";
private const string CROPPED_SAMPLE_PHOTO_URL = @"d:/inetpub/sites/dc/cropper/TheDogCropped.jpg";
protected void Page_Load(object sender, System.EventArgs e)
{
if (!Page.IsPostBack)
{
loadPhoto(ORIG_SAMPLE_PHOTO_URL);
}
else {
loadPhoto(CROPPED_SAMPLE_PHOTO_URL);
btnCrop.Visible = !btnCrop.Visible;
}
}
View 6 Replies
Feb 9, 2011
I m having a webService.
In that I m using Caching.
I have wrote following code to store datatable in cache.
using System.Web.Caching;
Cache.Insert("dt", dt, null, DateTime.Now.AddHours(1), TimeSpan.Zero, System.Web.Caching.CacheItemPriority.Default, null);
It give me error like "An object Reference is required for non static field.
View 2 Replies
Jul 14, 2010
Getting this error when I submit my form to savetext.aspx action file:Compiler Error Message: CS0120: An object reference is required for the nonstatic field, method, or property 'System.Web.UI.Page.Request.get'
On this line: string path = "/txtfiles/" + Request.Form["file_name"];
Whole code:
<%@ Page Language="C#" %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.IO" %>[code]....
View 2 Replies
Mar 22, 2010
Aplogies if this has been discussed before but I couldn't find an answer.
I'm trying to use jquery/Ajax to access some webmethods in my codebehind. This is fine, but I would in my function like to reference a placeholder (phStory in the code below) on my page and also load a usercontrol into that placeholder.
Unfortunately I get the message: "An object reference is required for the non-static field, method, or property 'TestControls.phStory' " and similar for the usercontrol. Does anyone know how I can still access my placeholder and usercontrol from within this.
It has to be stati as it's a WebMethod but this then throws up these errors.
[code]....
View 4 Replies
Dec 4, 2010
I'm a beginner at this, sorry if I get the terminology wrong. I'm using Visual Web Developer 2010 Express with C# 2008 and .NET v4.0 to create a website which will have a database application.
I have a SQL Server table which contains some bit fields (FruitsEarlySpring etc). When I linked this to a GridView with SELECT only defined, the bit fields were displaying as greyed-out checkboxes. To replace these with something more attractive I used Item Templates with Labels instead of the Checkboxes with custom binding e.g. Tick(Eval("FruitsEarlySpring")) and this logic in the code-behind file:
[Code]....
The label text font family is set to Webdings so that the "a" displays as a tick (a 'check'?), and this works very well.
My problem is, I have a separate page which displays the same fields using a FormView and I want to display them the same way, referring to the same logic, but I can't seem to access the method. I get runtime error CS0120, "An object reference is required for the non-static field, method, or property 'APR2.Fungi.Tick(object)'
line Line 338: <asp:Label ID="EarSprLab" runat="server" Font-Names="Webdings"
Line 339: Text='<%# APR2.Fungi.Tick(Eval("FruitsEarlySpring")) %>'></asp:Label>
Before this I tried not qualifiying the method name and got error message CS0103, "The name 'Tick' does not exist in the current context". The code-behind files occupy the same namespace, and the class and method are now both public so I don't think it's a scope problem. I have searched this forum for similar problems and no, I don't have two master pages, or a duplicate set of files.
View 2 Replies
Mar 26, 2011
I have a private static field in my Controller class in an MVC web application.
I have a static method in that controller that assigns some value to that static field, I want to apply lock on that static field until some other instance method in the controller uses the value stored in the static field and then releases it.
DETAILS:
I have a controller named BaseController having a static ClientId field as follows and two methods as follows:-
public static string ClientId = "";
static void OnClientConnected(string clientId, ref Dictionary<string, object> list)
{
list.Add("a", "b");
// I want the ClientId to be locked here, so that it can not be accessed by other requests coming to the server and wait for ClientId to be released:-
BaseController.clientId = clientId;
}
public ActionResult Handler()
{
if (something)
{
// use the static ClientId here
}
// Release the ClientId here, so it can now be used by other web requests coming to the server.
return View();
}
View 1 Replies
Aug 10, 2010
I'm beginner in AJAX. I was developing an ASP.Net Web-Site (MVS 2008, ASP.Net version 2.0.50727), so on current step I need pop-up windows with server code functionality. I decided to try AJAX. I have downloaded the latest version AjaxControlToolkit.Binary.NET35, added dll to Bin folder, and writed code as:
[Code]....
I use ScriptManager coz I can't compile project with ToolkitScriptManager. When I start web site I can't get the expected result, only I get script error message like "Object doesn't support property or method".
View 16 Replies
Aug 19, 2010
i have little knowledge on javascript but i need to use this code get from somewhere for a jquery to work. I face this "Jscript runtime error: Object does not support property or method" whenever im trying to run this page. In my experience, im get this error msg 9 out of 10 times i use javascript in my system. Im using Microsoft Visual web developer 2008, i wonder if this is related to my problem, i not sure there is anything i need to add as reference or update anything. But anyway, in short, i just couldn't use javascript code when using this development tool because of this sort of error. Anyway, it happen that last time i tried use the same type of jquery code in another project and it seems to work well without an error. But now when im try to use it again in this recent project i created, it come out with this error and i have no idea how to solve it even look through google and this forum. It doesn't really seems like its the code problem itself although im not sure, because any javascript code just couldn't work. So below is my code that i need to use.
[Code]....
View 5 Replies
Feb 3, 2011
when i am declaring my connection string i am getting error below is my connection string
[Code]....
the error is A field initializer cannot reference the non-static field, method, or property 'Default3.con1' .i am unable to type con1.
View 2 Replies
Jan 28, 2011
I am trying to use jGrowl in ASP.NET, but am getting a Microsoft JScript runtime error: Object doesn't support this property or method error when trying to run the page in IE.
<link rel="stylesheet" href="css/jquery.jgrowl.css" type="text/css" />
<style type="text/css">
div.jGrowl div.smoke {
background: url(images/smoke.png) no-repeat;
[Code]....
View 1 Replies
Jun 9, 2010
I am trying to validate my gridview checked checkboxs, using code below.
I get "Microsoft JScript runtime error: Object doesn't support this property or method" error when button is clicked and i used breakpoints to check strangely, i am getting back gridViewx count=3 in javascript function. my gridview has nested gridview?
CodeBehind.aspx
page on_load
ActiveAssignButton.Attributes.Add("OnClick", "return IsCheckBoxSelected(" & GridView2.ClientID & ")")
html page
function IsCheckBoxSelected(gridViewx) {
if (gridViewx != null) {
var chkBoxes = gridViewx[0].getElementsByTagName("input");
for (i = 0; i < chkBoxes.length; i++) {
if (chkBoxes[i].type == "checkbox" || chkBoxes[i].type == "CHECKBOX") {
if (chkBoxes[i].checked == true) {
return true;
}
}
}
alert("At least one ticket needs to be selected!");
return false;
}
}
View 3 Replies
Mar 8, 2011
I am writing a Web Application in ASP.NET using C#. Whenever I run it, I get three types of Runtime Javascript Errors.
My Problem is that even though I am running a new Web Application with out any modification, then I also get the same errors.
These are the errors:
Microsoft JScript runtime error: Object doesn't support this property or method
at
document.addEventListener("mousemove", updateLastMouseMoveCoordinates, false);
Microsoft JScript runtime error: Object expected
at divSurveyInit();
Microsoft JScript runtime error: Object doesn't support this property or method
at enter code here:
document.addEventListener("mousemove", updateLastMouseMoveCoordinates, false);
View 2 Replies
Sep 30, 2010
in my default.aspx page i have a dropdown List and a textbox with a submit button below that there are 2 listbox... and the dropdown list holds the names of the listbox
my logic here is to select an item from the dropdown list and put some text in the text box and submit the form which will add an item to the listbox selected.. but when i do this i get an error saying Object reference not set to an instance of an object. i tried to figure out the problem and found that when i remove the reference to the Site Master Page it works fine and when i undo and apply my reference back to the Site Master Page i get the same error.
[Code]....
View 2 Replies
Aug 2, 2010
I am trying to sort in gridview however I got some error message in _dopostback function which shows "Microsoft JScript runtime error: Object doesn't support this property or method" at theForm.submit()
my user.aspx.cs shows as follows
[code]....
View 7 Replies
Jun 10, 2010
I have just asked which one is better?Static Vs Non-Static? [URL]I would like to take this discussion one step ahead.Consider If i pass reference of Panel control as parameter to Public static method, will static method still rules in performance?
View 1 Replies
Aug 30, 2010
I'm using Entity Framework. The following code throws a runtime error "System.NullReferenceException: Object reference not set to an instance of an object." The line before the error, it looks like newControl is in fact instantiated.
My model has a Control entity and a ControlType entity. Control includes the Navigation Property "ControlType." I'm trying to set ControlType.Type = 2.
[Code]....
View 5 Replies
Jan 21, 2010
I am using grid view as mentioned below, it is giving me error "object reference not set", but if comment allowpaging and pagesize lines, it works. let me know whats wrong I am doing?
[Code]....
[Code]....
View 2 Replies
Jul 21, 2010
We have a Static class that 's called CData in our asp.net c# app.It handles all the data layer CRUD functionality on our pages.
Problem is, were are losing the intellisense reference in our pages to it.For example: we would expect to type CData.(dot) and have a list of methods and properties available to us.
Nope. Not there.
I kind of thought it was because the file was getting too long at 3000 lines of code, since some other static classes were working ok.
So then I thought that I'd try wrapping the CData Class in a namespace. That worked, but of course I had to put an include statement of the top of each page that's using CDATA, also, now some of the other developers are getting errors in there pages complaining about missing methods that are in CDATA, but their pages are not seeing.
View 1 Replies
Feb 1, 2010
I am trying to get the value of the id field in my gridview but I keep coming up with this error when i do selectedValue or selecteIndex
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
How do I get that id? What I am trying to do is when the user select that link it will delete that information from the database. Here's my code:
[Code]....
[Code]....
View 5 Replies
Feb 22, 2011
I hate to see the name of the class used as a string parameter like "FileDownloader" in the code, and I would like to use something like this FileDownloader.Name(), where FileDownloader is name of the class.
Only problem is that I can't find out how to do that without instantiating object or creating a static method...
Is there a way to get a class name in .net without having the object instance and without creating a static method that returns the name of the class?
View 3 Replies
Aug 25, 2010
I have a url like this:
http://www.somepage.com/main.aspx. In this page, when I click on a link it takes me to a page
http://www.somepage.com/cental.aspx?cid=200. So in the cental.aspx.cs page I did the following in the page load:
if(request.querystring["comp"].tostring() != null)
{
//do some thing [code].....
So I got an error like: object reference not set to an instance of reference.My problem is, I am using the same page. So when I go from some page, I will have "comp". but other times not. So when there is no "comp", how do I handle it in request.querystring?
View 3 Replies
Jan 21, 2011
I'm trying to reference a public property from a string. How can this be done in vb.net? I have the text value of "FirstName" stored in strucParam(i).TxtPropertyName.
This is what I'm currently doing:
Dim tmpValue As String
Dim ucAppName As UserControl_appName = CType(Parent.FindControl(strucParam(i).ParentFindControl), UserControl_appName)
tmpValue = ucAppName.FirstName.Text
How can I use the value in strucParam(i).TxtPropertyName so that I can remove ".FirstName" from my code?
View 1 Replies
Jan 24, 2011
When I get an Object Ref error, it can sometimes be a real pain to find out which variable is causing the error (when you can't debug). Is there a way for this error to throw the classname that isn't assigned?
View 2 Replies
