Suppose I have two webforms, the first is defined as:
Public partial class webform1 : System.Web.UI.Page
{ ... }
and the second as
public partial class
webform2: System.Web.UI.Page.
{...}
When I make a reference from webform2 to webform1, such as
If (PreviousPage is webform1) {
}
I get an error, it says that webform1 doesn't exist.
Aren't all public webforms really public? how do I do it?
We inherited some code that makes use of a web service on an external server from a third party. Currently all the references are done in the project directly and thus compiled to that location and such. This issue we have is that there is a test and production server for the web service with different URLs.
Is there a simple means to make the web reference more dynamic so that it can be defined in a web.config and not require changing the actual source and recompiling to switch between servers?
Probably a fairly simple one. Just need to know how I can make reference to controls in the HeaderTemplate of a DataList. I've got a form in there that I need to get the data from.
View 2 Repliesin 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]....
I am trying to call web reference "A" in an application.
The web reference "A" will then call a function in another web reference "B" through HTTPS connection (require certificate).
Then I keep getting the following error:
An unhandled exception of type 'System.Web.Services.Protocols.SoapException' occurred in System.Web.Services.dll
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?
I am finding the following error on firefox:-
XML Parsing Error: no element foundLocation: [URL] Number 1, Column 1:where as on local there is no error the code contains: protected void Button1_Click(object sender, EventArgs e) { try { SqlConnection con = new SqlConnection(WebConfigurationManager.ConnectionStrings["PintooConnection"].ConnectionString); DataSet Ds = new DataSet(); SqlDataAdapter Da = new SqlDataAdapter("Select * from Emails", con); Da.Fill(Ds); for (int i = 0; i < Ds.Tables[0].Rows.Count; i++) { Label1.Text = Label1.Text + i.ToString() ++ Ds.Tables[0].Rows[i][1].ToString() + " <br />"; SqlConnection test = new SqlConnection(WebConfigurationManager.ConnectionStrings["PintooConnection"].ConnectionString); string qry = "Insert into test values ('" + Ds.Tables[0].Rows[i][1].ToString() + "','" + Ds.Tables[0].Rows[i][2].ToString() + "','" + Ds.Tables[0].Rows[i][3].ToString() + "','" + Ds.Tables[0].Rows[i][4].ToString() + "','" + Convert.ToDateTime(Ds.Tables[0].Rows[i][5].ToString()) + "')"; SqlCommand cmd = new SqlCommand(qry, con); con.Open(); cmd.ExecuteNonQuery(); con.Close(); cmd.Dispose(); } } catch (Exception ex) { Label1.Text = ex.ToString(); } }aspx code is here:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="testforconnection.aspx.cs" Inherits="Admin_testforconnection" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ><html xmlns=[URL]><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" /> </div> <asp:Label ID="Label1" runat="server" Text=""></asp:Label> </form></body></html>I have also tried this<![CDATA[<% Response.ContentType = "text/HTML";>but the problem is same.</textarea></p>
<input type='hidden' name='ID[1]' value='178042' />
<input type='hidden' name='URL[1]' value=[URL] />
<input type='hidden' name='CAT[1]' value='ASP.NET' />
<input type='hidden' name='BOARD[1]' value='stackoverflow' />
<input type='hidden' name='P_DATE[1]' value='Jun 18 10 at 4:43' />
<input type='hidden' name='RANDOM[1]' value='oP15QfJ0c' />
<input type='hidden' name='REPLIES[1]' value='3' />
<input type='hidden' name='USER[1]' value='aziz' />
<p><input class=subject type='text' size='90' name='SUBJECT[1]' value='c# - How do you access the Source Error, Source File and Line Number of an exception to use in a custom error page?' /><select name='INDEXED[1]'><option value='1' selected>UPDATE</option><option value='2'>DELETE</option></select>Jun 18 10 at 4:43 - Replies: 3 CAT: ASP.NET<a target=_blank href="[URL]>View</a></p>
<p> <textarea rows=10 cols=100 name='POST[1]' onfocus='setSelRange(this, 0, 0)'/>Basically I want to take the following:
And make it match the styling of the rest of the application. I am creating a custom error page in my C# based project and I want it to be able to show the same information that is displayed in the ASP.NET default error page. From fiddling with reflector I can see that this is generated through HttpException.GetHtmlErrorMessage() but when I try to use this in my exception it returns null.
</textarea></p>.......................................
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]....
Does anyone have any good examples of how to make Unity 1.2 or 2.0 work with ASP.NET WebForms?
I thought I had this figured out, but evidently I'm missing something. Now I'm getting the error; "No parameterless constructor defined for this object". I remember getting this error a couple years ago, I and just don't remember what I did.
Obviously Unity isn't working as it should because somewhere along the way I've forgotten something.
Here's some of my code:
Global.asax
[code]....
public class RootObject
{
public string UserEmail { get; set; }
public List<string> UserRoles { get; set; }
}
My class and i am using in this
public List<RootObject> GetUser()
{
List<RootObject> rbl = new List<RootObject>();
RootObject rb = new RootObject();
var manager = new UserManager();
[Code]...
How to initialize Error is because of this
public List UserRoles
I tried the datagrid cell editing. But i'm getting the following error. Error message is "Object reference not set to an instance of an object.". How to solve this error? Here i attached my code also.
<asp:TemplateColumn HeaderText="Appoinment Date">
<ItemTemplate>
<%#DataBinder.Eval(Container.DataItem, "followupdate")%>
</ItemTemplate>
<EditItemTemplate>
<input ID="DateTimePicker1" runat="server"
type="text" onfocus="showCalendarControl(this);" value='<%#DataBinder.Eval(Container.DataItem, "followupdate")%>' />
</EditItemTemplate>
</asp:TemplateColumn>
Dim test3 As HtmlInputText
test3 = New HtmlInputText
test3.Value = CType(e.Item.FindControl("DateTimePicker1"), HtmlInputText).Value
I'm getting the null value. How to solve this problem?
Object reference not set to an instance of an object.
if((drpdept.SelectedItem.Text != "--Select--")|| (drpdept.SelectedItem.Text !=null))
{
}
i hve above line but i get Object reference not set
I am having a problem with rendering a menu control inside a server control. I am getting an error in the RenderContents override method when I try to render the Menu Control. The error I am getting is an Object Reference error. The code is below...
[Code]....
I have a FormView with a FileUpload to upload an image in a database.
I keep getting an object reference error.(view code)
I am using this same script to upload the image to the database, but when I try to update the file upload I get the error.
[code]....
I have adeed a dll file on my project and it's working fine with local system. but when i uploaded it on hosting webspace it's displaying error. "assembly refference is missing" i have alreday added bin folder there. So how to add bin folder on hosting spaces.
View 1 RepliesI have a gridview,when i do it is giving me null object reference error.
I am posting my code for your reference -
[Code]....
My gridview code is -
[Code]....
I lifted some nice code to handle memberships, but I want to add a customer specific field. My issue is how to reference my class from the inline c# code.
[Code]....
The problem is the line csUserProperties.AddNew(intUserId, lngCustomerId); -- I get the error "The name 'csUserProperties' does not exist in the current context. I have <%@ Import Namespace="csUserProperties" %> at the top of the file. I also tried everything with no namespace in the class below.
I invoke web reference url in app settings that is,
<appSettings>
<add key="Aggregator" value="http://mob.i-waves.com/mDirectalpha/mDirectCPWebServiceV1/Aggregator.asmx"/>
<!--<add key="Aggregator" value="http://localhost/mDirectCPWebServiceV1/Aggregator.asmx"/>-->
</appSettings>
Its working in localhost fine that is second url. But i put the in another server in the file, i got the below error.
It says sumlabel.text NullReferenceException was handled by user codeError: Object reference not set to an instance of an object, Where i went wrong?,
[Code]....
I used this brilliant solution to convert a linq query to a datatable. But I'm getting a strange error when running it. Build succeeds though.
Compiler Error Message: CS0121: The call is ambiguous between the following methods or properties:
'Gruppkoll.App_Code.ConvertToDataTableFromLinqResult.ToADOTable<Gruppkoll.MessageSet
(System.Collections.Generic.IEnumerable<Gruppkoll.MessageSet>)' and
'Gruppkoll.App_Code.ConvertToDataTableFromLinqResult.ToADOTable<Gruppkoll.MessageSet (System.Collections.Generic.IEnumerable<Gruppkoll.MessageSet>)'
I've tried re-building it and restarting the IIS. It seems as there are two classes with the same method but I've checked this and that's not the case. I'm using .NET 4.0 ASP.NET Webforms.
In my page, if i refer
using System.windows.forms;
using System.web.webcontrols.....
Textbox ambiguous reference error is occured from webcontrols and forms, how can i rectify this error... but i need those two namespaces in my asp.net page.
I am getting this error while loading(adding) it into service References (web client)
The type 'WcfTrial2.Calculation', provided as the Service attribute value in the ServiceHost directive could not be found.
How to resolve it?
I Am trying to do CRUD operation in MVC with help of this Article, [URL] But when run the page I got this "Object refernce not set to an object"
<%
foreach
(var
item in
Model) { %>
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 RepliesIn the VS2005 environment, when I test my session to make sure the page redirects to the main page (itself) if the session is null, it works. There is no error.
The function I use for this is:
[code]....
However, when it is in the production environment in IIS 6.0, when the session has timed out, and I then do a postback by doing some slider control, I see the page reload but immediately thereafter, it throws a Server Error exception of : Object reference not set to an instance of object.
Looking at the stack trace, the event occured:
AJAXEnabledWebApplication1._Default.Slider1_TextChanged(Object sender, EventArgs e)
however, why is it that the Slider1_TextChanged event fired even even after during page_load, the page was told to do a response.direct ?? shouldn't the entire page have gone through a full-page refresh life cycle ? why did it continue on to attempt to raise the Slider1_TextChanged event?