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I tried each event without the others present. As a last test I added event "CellValueChanged" to see if I was getting some event and it worked.
namespace DataGridView_Events
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
InitializeTable();
}
private void InitializeTable()
{
dataGridView1.ColumnCount = 3;
dataGridView1.Columns[0].Name = "Column0";
dataGridView1.Columns[1].Name = "Column1";
dataGridView1.Columns[2].Name = "Column2";
dataGridView1.Rows.Add(5);
dataGridView1.Rows[0].HeaderCell.Value = "Row1";
dataGridView1.Rows[1].HeaderCell.Value = "Row2";
dataGridView1.Rows[2].HeaderCell.Value = "Row3";
for (int i = 0; i < 3; i++)
{
dataGridView1.Rows[i].Cells[0].Value = 0 + i;
dataGridView1.Rows[i].Cells[1].Value = 10 + i;
dataGridView1.Rows[i].Cells[2].Value = 20 + i;
}
dataGridView1.Refresh();
}
private void dataGridView1_KeyPress(object sender, KeyPressEventArgs e)
{
int i = 0; i = i + 1;
}
private void dataGridView1_KeyDown(object sender, KeyEventArgs e)
{
int i = 0; i = i + 1;
}
private void dataGridView1_KeyUp(object sender, KeyEventArgs e)
{
int i = 0; i = i + 1;
}
private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
int i = 0; i = i + 1;
}
}
}
So many years of programming I have forgotten more languages than I know.
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Thanks. I needed to add the following to pass the event up:
private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
e.Control.KeyPress += new KeyPressEventHandler(dataGridView1_KeyPress);
}
So many years of programming I have forgotten more languages than I know.
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You need to explain what not working" actually means. As it stands it is anyone's guess what you are doing wrong.
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Now how do I do it when I put it in a custom control.
protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
}
protected override void OnEditingControlShowing(DataGridViewEditingControlShowingEventArgs e)
{
e.Control.KeyPress += new KeyPressEventHandler(OnKeyPress);
base.OnEditingControlShowing(e);
}
I get an error on the OnKeyPress in setting the event handler:
No overload for 'OnKeyPress' matches delegate in 'KeyPressEventHandler'
So many years of programming I have forgotten more languages than I know.
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Simple:
protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
HandleKeyPress(this, e);
}
protected override void OnEditingControlShowing(DataGridViewEditingControlShowingEventArgs e)
{
base.OnEditingControlShowing(e);
e.Control.KeyPress += HandleKeyPress;
}
protected virtual void HandleKeyPress(object sender, KeyPressEventArgs e)
{
}
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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Beautiful, Thank you. The event OnKeyPress never gets used.
So many years of programming I have forgotten more languages than I know.
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It is clear if you can find it by guessing the right search que. Thanks again.
So many years of programming I have forgotten more languages than I know.
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You can see the keyword KeyPressEventArgs in your code, so that should be a starting point.
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Hello I have a beginner question, hopefully it isn't a stupid question.. If I rip a CD into a mp3 file with Windows Media Player on Windows Vista, will the quality be the same as if I ripped it on Windows 10?
My Windows 10 computer doesn't have a cd slot. My old Windows Vista laptop has one but I'm worried the sound quality will be worse if I rip it with my Windows Vista laptop. This is an important CD. Does the operating system matter? I assume the Windows 10 Media Player is more up to date. Or does it not matter at all? Thanks.
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This is a site for software development, not technical support on your laptop.
But no - it'll make no difference: the quality of the music will be the same. Whether it's legal or not is another matter...
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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Tovino James wrote: it isn't a stupid question..
It is.
Tovino James wrote: My old Windows Vista laptop has one
Laptops have bad sound. Vista is bad too.
Your sound will be bad-bad. The only solution is to set fire to your laptop 
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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I have to create one appliaction for PDF drag Drop
I have done the codine for drag drop PDf to my windows from application,
Now i want to upload PDF file to using SI component called IAGS_ImageUpload
Could you please help me how do i upload drag drop pdf file to SI component
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I need a c# code for dot matrix direct printing code
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I need a Ferrari and £1,000,000.
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i think it not a big for you give me Ferrari. Better you send me man
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I think you missed his point. Why should anyone do your work for you and just hand it over for free?
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Print Direct To Windows Printer (EPOS Receipt)
The Master said, 'Am I indeed possessed of knowledge? I am not knowing. But if a mean person, who appears quite empty-like, ask anything of me, I set it forth from one end to the other, and exhaust it.'
― Confucian Analects
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Thank you but i need Dot matrix printer code above code is POS code (Receipt).I'm using Dot matrix rolled paper
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The code is no different for a dot matrix printer.
The only thing that would change would be what you send to the printer.
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I KNEW you would say that.
The Master said, 'Am I indeed possessed of knowledge? I am not knowing. But if a mean person, who appears quite empty-like, ask anything of me, I set it forth from one end to the other, and exhaust it.'
― Confucian Analects
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I have a created a WinForms User Control class (C# WinForms project in and Visual Studio 2017) that has (3) controls in it: A label, textbox, and button. Next drag-and-drop that User Control onto a WinForm, and it appears with each of the child controls. All appears good, for now..
Next I decide to make some changes in the User Control custom class, so I open it in the visual designer, move the button to a new location and change the size and change the caption of the button and save my changes. Rebuild. Next I open the Form that uses an instance of the User Control, and I do NOT see the updates I made to the User Control class.... The button is at the original location and original caption and original size.
Surely, the creates of this platform should now that anyone would expect these changes to be applied to the instance of the control wherever it is used in the app.
Please tell me I am missing something very basic here to make this work like true inheritance should...
I made short a video here to demonstrate this issue:
Video: Custom User Control on WinForm
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I am creating an application to do utility billing. I want to be able to add notes/comments to each customer/meter. I'm a newbie so I am asking what is the best way to enter and store these notes. Right now I have a access database, I have a table dedicated to just the notes. I am storing date and time stamp as to when the note was added, the customer number and the note. Each note is stored in a record for each customer. I have a textbox on the windows form that I enter and display the information.
Is this the best way or is there a better/easier way. Since I am new I might be overlooking something.
With my code now I am having trouble combining the records for each customer and displaying them in the textbox. If the way I am doing it works then I will post other help on that issue.
Thanks in advance...
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Hello guys , I try to create a Download Manager but when I was running my project and I click in start download button after that this error happen.
______________________________________________________________________________________________________
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at DotnetDownloader.frmnewdownload.btnstartdownload_Click(Object sender, EventArgs e) in E:\VisualProject(CSharp)\DownloadMenager\DotnetDownloader\frmnewdownload.cs:line 72
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
DotnetDownloader
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3056.0 built by: NET472REL1
CodeBase: file:----------------------------------------
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
-----------------------------------------------------------------------------------------------------------
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