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by: DraguVaso |
last post by:
Hi,
I'm using the DataGridView in VB.NET 2.0. The DataSource is a Generic List
of a custom class0: lstMyPersonnes = New List(Of clsPersonne).
When I add a new clsPersonne to lstMyPersonnes, and rebind the
lstMyPersonnes to my DataGridView.dataSource, it shows the new record in
the DataGridView as it should be.
But when I click on a cell of that row, I suddenly got this error: "Index -1
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by: dbuchanan |
last post by:
Hello,
Is this a bug?
Is there some kind of work around?
I want to add default values for a few columns in my datagridview
I found the "DefaultValuesNeeded" event for the datagridview
I gave it a try using the example given in
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by: stevenhaochen |
last post by:
I add a user control (a simple textbox control) to customize
datagridview column to test how to add user control to datagridview. I
found a weired behavior. I can not input "q", "!", "#".
But I can input other keys (e.g. "Q", "@", "W")
Anybody found this question? It looks like the textbox eat the input
'q' and does not show up in the text.
Public Class DataGridViewEditorButtonEditingControl
Inherits TextBox
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by: Paul Hemans |
last post by:
Hi, I am using VS2005. I have a form with a tabControl on it. Suddenly I can
no longer see any of my controls, on any of the pages, or even the
tabControl itself. They still exist because the various objects are
available in the properties interface. If I select one I can see all the
properties but the control doesn't show in the design area.
When I run the application the form appears blank. Here are the properties
on the tabControl that...
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by: =?Utf-8?B?Q2hyaXN0aWFuIFdlaW5lcnQ=?= |
last post by:
Hello,
I currently fight with a problem during the derivative of WinForm controls.
In Visual Studio I created a new User Control. This control is derived from
the DataGridView of the System.Windows.Forms namespace. I want to use this
control as a template for futher controls. Within this control i want to set
some property values to be pre-defined for further derived controls.
My base class looks like this:
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by: jehugaleahsa |
last post by:
Hello:
I am sure this question comes up a lot. I need to disable the controls
on my Windows forms so that when the BindingSource is empty some the
controls bound to it will be disabled.
This will make it clear to the user that they have to create a new
item first before they start working.
This needs to be an easy process because there are many, many forms.
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by: DaveL |
last post by:
Hello,
I have a Custome Control which contains
TextBox
Button
DataGridView
design is Textbox , button When a user clicks the button
i resize the custom control canvasarea to expose the datagridview below
the textbox
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by: Andrus |
last post by:
I have DataGridView in virtual mode containing 3500 rows.
In code below, assigning to RowCount value to 3500 takes 8 seconds.
CPU usage goes high at this time.
Stepping by F11 into user code shows few celltemplate property getters and
combobox/datecombo constructor calls without database access which does not
take a lot of time.
Debug output (below) shows lot of messages Stepping over non-user code.
Running in release mode from...
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by: alex21 |
last post by:
Ok im getting this exception from a DataGridView control in my program.
System.ArgumentOutOfRangeException was unhandled
Message="Value of '132' is not valid for 'Value'. 'Value' should be between 'minimum' and 'maximum'.\r\nParameter name: Value"
Source="System.Windows.Forms"
ParamName="Value"
StackTrace:
at System.Windows.Forms.ScrollBar.set_Value(Int32 value)
at System.Windows.Forms.DataGridView.ScrollRows(Int32...
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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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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