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by: Terrence |
last post by:
I am doing some of the C# walkthroughs to transition from
VB to C#. When I try to execute
static void Main()
{
Aplication.Run(new Form1())
}
I raise a 'System.NullReferenceException" in
system.windows.forms.dll
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by: Eric Diana |
last post by:
I am trying to place an strings into an array of strings I am
declaring as
Dim Fields() As String
I have another variable im doing the same thing with and it works.
Public Shared Operations() As String
This is the error I am getting
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by: muralidharan |
last post by:
WebForm1.aspx Code:
<%@ Register TagPrefix="ComponentArt" Namespace="ComponentArt.Web.UI"
Assembly="ComponentArt.Web.UI" %> <ComponentArt:TreeView
id="TreeView1" Height="520" AutoPostBackOnNodeMove="false"
DragAndDropEnabled="true"
NodeEditingEnabled="False" KeyboardEnabled="true"
CssClass="TreeView" NodeCssClass="TreeNode"
SelectedNodeCssClass="SelectedTreeNode"
HoverNodeCssClass="HoverTreeNode" NodeEditCssClass="NodeEdit"
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by: Janet Heflin |
last post by:
Very new in the C# world so give me a break here. I have created two
web forms, one passes information to the other and brings up the data
based on the passed field. When I do the updateRow I get the object
recrence not set to an instance of an object. If I rem out the error
message on the update it goes through and acts as though it updates
but does not. Here is the updateRow statements:
private void updateRow(object source,...
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by: Raed Sawalha |
last post by:
i have a windows form(Main) with listview, when click an item in listview i
open other window form (Sub) which generate the selected item from parent
window in as treeview items when click any item in treeview i display the
content item in axWebBrowser, i close the sub form normally when i close the
main the following error is generated
An unhandled exception of type 'System.NullReferenceException' occurred in
system.windows.forms.dll
...
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by: huobazi |
last post by:
I have many dropdownlist controls in my ascx (and use LoadControl in a aspx fiel) file,so i write a method "InitList(DropDownList list,string strsql,string TextField,string ValueField)"
but when i want to get the BigClassList.SelectedItem.Text and BigClassList.SelectedItem.Value in a button onclick method,btnSmallClassEdit_Click(....),there post an error " System.NullReferenceException: 佫¶ÔÏóÒýÓÃÉèÖõ½¶ÔÏóµÄʵÀý¡£",
I Don't know the...
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by: Patrick.O.Ige |
last post by:
I'm loading an Array below but getting the error "Object reference not set to
an instance saying 'ItemNumber = CType(Args.Item.FindControl("ItemNumber"),
TextBox).Text' is the error line.
I DON'T KNOW WHAT I'M DOING WRONG I USED ASP.NETWebMatrix and its working
well!!
Any help!!
I have declared ItemNumber as u can see below
" :-
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by: Patrick.O.Ige |
last post by:
What could cause the error:-
System.NullReferenceException: Object reference not set to an instance of an
object.
Any ideas?
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by: ishanisircar |
last post by:
hiya,
i am using vb and asp.net with sql server. when the vb page is run, a gridview is displayed. In the gridview when a link button is clicked, a calendar is displayed. i am using this code to displat the calendar. but i keep getting a System.NullReferenceException. how can i remove this?
i get an error on this line of my code
CType(grTemp.FindControl("txtRenewTill"), TextBox).Visible = True
here is my code:
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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