Re: Scrolling Two Datagrids Simultaneously - C# Discussion Boards

Nnamdi Onyeyiri3-Oct-04 0:04

3-Oct-04 0:04

Put a value for it in one of the following folders.

For All users:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

For the current users:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

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Zapss3-Oct-04 21:16

Zapss

3-Oct-04 21:16

How can i add this from c# application?any example

Nnamdi Onyeyiri4-Oct-04 1:30

4-Oct-04 1:30

using Microsoft.Win32;
.....
RegistryKey hkcu = Registry.CurrentUser;
RegistryKey run = hkcu.OpenSubKey("Software\\Microsoft\\Windows\\CurrentUser\\Run");
 
run.SetValue("MySoftware", "C:\\Path\\To\\Software.exe");

something like that should do the trick.

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Member 12723814-Oct-04 19:17

Member 1272381

4-Oct-04 19:17

using Microsoft.Win32;

string strAssemblyPath;
strAssemblyPath = System.IO.Path.GetDirectoryName(base.Context.Parameters[ASSEMBLYPATH_STATENAME]);
Process.Start(strAssemblyPath+"\\Application.exe");

RegistryKey MainKey;
MainKey=Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths");

RegistryKey ApplicationKey=MainKey.OpenSubKey("Application",true);

ApplicationKey.SetValue("Application.exe",strAssemblyPath+"\\Application.exe");

Check the Above code written in c#. This Code i have written for writting my application path into registry.

And u can add the application to the Start up in another way also.

Check while creating setup u can create a chort cut to the start menu startup folder. that will also run the application.

Arun Kumar Sabat

Scrolling Two Datagrids Simultaneously

Zapss5-Oct-04 18:31

Zapss

5-Oct-04 18:31

Thanks for your replay.
i have another doubt?
how can i hold system shut down process
until user close my c# application properly...

RFickling2-Oct-04 18:13

RFickling

2-Oct-04 18:13

Hi,

I have two datagrids on a WinForm. I want to keep them synchronized so that when the user scrolls one of them, I can programmatically scroll the other one an equal amount. The datagrid is new to me. How can I do that?

Royce

Re: Scrolling Two Datagrids Simultaneously

Heath Stewart3-Oct-04 9:29

Heath Stewart

3-Oct-04 9:29

If you had searched for answers to your problem first, you may have run across http://www.codeproject.com/script/comments/forums.asp?msg=911474&forumid=1649#xx911474xx[^], which describes the solution to what you're searching for. The fact that this is for a RichTextBox doesn't matter; the same solution works for practically all scrollable controls so long as the controls that they encapsulate handle the standard scrolling messages.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

[My Articles]

Weird Memory Problem

matthias s.2-Oct-04 17:54

matthias s.

2-Oct-04 17:54

Hi,

I'm using C#Express Beta and accordingly the framework 2.0.

I recently realized that my application, when starting has a workingset peak of ~128 MB. WTF | :WTF:

I startet wondering a bit because the application didn't yet do anything really usefull.

So I fired up the IDE, created an empty WinForms project and compiled a release build. Please note that I have not added any extra code! Here is what I have figured out:

1. On launching the resulting exe, the TaskManager shows a workingset of ~70 MB.

2. When I minimize the MainForm window the workingset shrinks to ~400 KB.

3. Maximizing the window again results in a workingset of ~1460 KB, which I could live with.

Does anyone have an idea how to go on about this?

Confused | :confused:

BTW.: Is there a way to monitor in detail what and where and how your application is using up the memory? I have a monitor to get information as of what modules are loaded, but is ther a way to figure out of what classes or resources are taking up the space?

Any pointers are highly appreceated.

Thanks in advance,

Matthias

If eell I ,nust draw to your atenttion to het fakt that I can splel perfrectly well - i;ts my typeying that sukcs.
(Lounge/David Wulff)

Re: Weird Memory Problem

EssOEss2-Oct-04 18:26

EssOEss

2-Oct-04 18:26

128? 70? Wow, that is a lot. Mine starts at 10-20 usually, for a "blank" app.
Yea, this weird behaviour is well known and has always been there. I haven't seen an answer to what causes it.

There is a memory profiler available for .Net which will show you exactly what uses how much memory and more.

http://www.microsoft.com/downloads/details.aspx?FamilyId=86CE6052-D7F4-4AEB-9B7A-94635BEEBDDA&displaylang=en[^]

Re: Weird Memory Problem

matthias s.3-Oct-04 12:43

matthias s.

3-Oct-04 12:43

Thanks for your reply. I've downloaded the tool and am now trying to figure out if and how it could help me Smile | :)

Thanks again!

Matthias

If eell I ,nust draw to your atenttion to het fakt that I can splel perfrectly well - i;ts my typeying that sukcs.
(Lounge/David Wulff)

Inet in C# ?

youssef2-Oct-04 14:18

2-Oct-04 14:18

Hi,

How can I use this command in C# ?

Inet.Execute "http://200.100.100.100/econtrol.html", "POST", "P1=t"

Best Regrads

youssef

eggie52-Oct-04 16:25

eggie5

2-Oct-04 16:25

What's Inet?

/\ |_ E X E GG

youssef3-Oct-04 0:01

3-Oct-04 0:01

Inet is a component in VB6 for communicate in HTTP, FTP, HTTPS.
I receive this command in a VB6 project and me I working in c++ or c#

Can you help me for translate this command in C# or C++ ?

Best Regards

youssef

Nnamdi Onyeyiri3-Oct-04 0:00

3-Oct-04 0:00

Using the HttpWebRequest and HttpWebResponse classes.

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youssef3-Oct-04 0:46

3-Oct-04 0:46

Thanks a lot

youssef

Salil Khedkar4-Oct-04 20:57

Salil Khedkar

4-Oct-04 20:57

If you don't want to go the programatic way and if this inet thingie is an exe which accepts command line params:

System.Diagnostics.Process.Start(@"C:\Path\inet.exe", @"http://200.100.100.100/econtrol.html POST P1=t"); Wink | ;)

youssef5-Oct-04 12:50

Re: A timer func problem???

5-Oct-04 12:50

Why this code doesn't working ?
Is it correct ?

using system.net;

System.Net.WebRequest req = null;
System.Net.WebResponse rsp = null;

try
{

req = System.Net.WebRequest.Create("http://200.100.100.100/econtrol.html?P8=t");
req.Method = "POST";
req.Timeout = 5000;
}
catch (Exception ex2)
{
string sErr = "Cannot connect to Internet. " + ex2.Message;
}

youssef

A timer func problem???

cemlouis2-Oct-04 14:08

cemlouis

2-Oct-04 14:08

Hi,

I have the below code which runs after choosing an item from the listbox (choose the first one). Goes to the below item after 5 seconds and then goes to another after 5 sec again... So here is my question: I have a func which I named as process() I want to run this func only once when each item is selected in the listbox? So how can I do that???

Thank you,
Cem Louis

<br />
<br />
using System;<br />
using System.Drawing;<br />
using System.Collections;<br />
using System.ComponentModel;<br />
using System.Windows.Forms;<br />
using System.Data;<br />
using System.Timers;<br />
using System.Threading;<br />
<br />
namespace WindowsApplication14<br />
{<br />
	/// <br />
	/// Summary description for Form1.<br />
	/// <br />
	public class Form1 : System.Windows.Forms.Form<br />
	{<br />
		private System.Windows.Forms.ListBox listBox1;<br />
		private System.Windows.Forms.Button button1;<br />
		private System.Timers.Timer timerClock = new System.Timers.Timer();<br />
		/// <br />
		/// Required designer variable.<br />
		/// <br />
		private System.ComponentModel.Container components = null;<br />
<br />
		public Form1()<br />
		{<br />
			//<br />
			// Required for Windows Form Designer support<br />
			//<br />
			InitializeComponent();<br />
			InitializeTimer();<br />
<br />
			//<br />
			// TODO: Add any constructor code after InitializeComponent call<br />
			//<br />
		}<br />
<br />
		public void InitializeTimer()<br />
		{<br />
			this.timerClock.Elapsed += new ElapsedEventHandler(OnTimer);<br />
			this.timerClock.Interval = 5000;<br />
		}<br />
<br />
		/// <br />
		/// Clean up any resources being used.<br />
		/// <br />
		protected override void Dispose( bool disposing )<br />
		{<br />
			if( disposing )<br />
			{<br />
				if (components != null) <br />
				{<br />
					components.Dispose();<br />
				}<br />
			}<br />
			base.Dispose( disposing );<br />
		}<br />
<br />
		#region Windows Form Designer generated code<br />
		/// <br />
		/// Required method for Designer support - do not modify<br />
		/// the contents of this method with the code editor.<br />
		/// <br />
		private void InitializeComponent()<br />
		{<br />
			this.listBox1 = new System.Windows.Forms.ListBox();<br />
			this.button1 = new System.Windows.Forms.Button();<br />
			this.SuspendLayout();<br />
			// <br />
			// listBox1<br />
			// <br />
			this.listBox1.Location = new System.Drawing.Point(8, 8);<br />
			this.listBox1.Name = "listBox1";<br />
			this.listBox1.Size = new System.Drawing.Size(120, 95);<br />
			this.listBox1.TabIndex = 0;<br />
			// <br />
			// button1<br />
			// <br />
			this.button1.Location = new System.Drawing.Point(8, 112);<br />
			this.button1.Name = "button1";<br />
			this.button1.Size = new System.Drawing.Size(120, 23);<br />
			this.button1.TabIndex = 1;<br />
			this.button1.Text = "Run";<br />
			this.button1.Click += new System.EventHandler(this.button1_Click);<br />
			// <br />
			// Form1<br />
			// <br />
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);<br />
			this.ClientSize = new System.Drawing.Size(136, 142);<br />
			this.Controls.Add(this.button1);<br />
			this.Controls.Add(this.listBox1);<br />
			this.Name = "Form1";<br />
			this.Text = "Form1";<br />
			this.Load += new System.EventHandler(this.Form1_Load);<br />
			this.ResumeLayout(false);<br />
<br />
		}<br />
		#endregion<br />
<br />
		/// <br />
		/// The main entry point for the application.<br />
		/// <br />
		[STAThread]<br />
		static void Main() <br />
		{<br />
			Application.Run(new Form1());<br />
		}<br />
<br />
		private void Form1_Load(object sender, System.EventArgs e)<br />
		{<br />
			listBox1.Items.Add("Arthur");<br />
			listBox1.Items.Add("Alex");<br />
			listBox1.Items.Add("Amie");<br />
			listBox1.Update();<br />
		}<br />
<br />
		private void OnTimer(object source, ElapsedEventArgs e)<br />
		{<br />
			this.nextvalue(this.listBox1.SelectedIndex);<br />
		}<br />
<br />
		private void button1_Click(object sender, System.EventArgs e)<br />
		{<br />
			if(this.listBox1.SelectedItem!=null)<br />
			{<br />
				this.timerClock.Start();<br />
			}<br />
			else<br />
			{<br />
				MessageBox.Show("Select an Item");<br />
			}<br />
		}<br />
<br />
		private void nextvalue(int currentPosition)<br />
		{<br />
			if(currentPosition+1<=this.listBox1.Items.Count-1)<br />
			{<br />
				this.listBox1.SetSelected(currentPosition+1,true);<br />
			}<br />
			else<br />
			{<br />
				this.timerClock.Stop();<br />
			}<br />
		}<br />
<br />
		private void process()<br />
		{<br />
			// Does something in an 5 second interval<br />
			// Must run once<br />
		}<br />
	}<br />
}<br />

partyganger2-Oct-04 16:21

partyganger

2-Oct-04 16:21

Add a boolean class member that starts out as false. Whenever the timer event is triggered, check if it's false. If so, set it to true. In the ListBox SelectedIndexChanged event handler (or whatever the event is called that gets called whenever you select a different item from the listbox), set the boolean to false again, thus resetting it and allowing the timer event to run again.
This way, Process() can only run when a different item has been selected. And since the Process() then sets the boolean flag to true, it will only run once.

<br />
bool itemIsInTimer = false;<br />
<br />
private void listbox1_SelectedIndexChanged(object sender, System.EventArgs e)<br />
{<br />
 this.itemIsInTimer = false;<br />
}<br />
<br />
private void process()<br />
{<br />
if(!this.itemIsInTimer)<br />
{<br />
this.itemIsInTimer = true;<br />
// do process<br />
}<br />
}<br />

adding to the byte[] ?

SniperED0072-Oct-04 10:00

SniperED007

2-Oct-04 10:00

I have the following:

To read an image from the northwing db im doing the following (im using 78 as the current images in the northwind db have 78 bytes of header information):

<br />
ms.Write(img, 78, img.Length-78);<br />
			<br />
bmp = null;<br />
bmp = new Bitmap(ms);<br />

Then to write the image to the db:

<br />
FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);<br />
<br />
BinaryReader br = new BinaryReader(fs);<br />
      		<br />
byte[] photo = br.ReadBytes((int)fs.Length);<br />

The problem is I need to add 78 bytes when writing a new image to the db, so that when I read the image its like the others that already exist in the db. Anybody know how to do this?

Re: adding to the byte[] ?

Nnamdi Onyeyiri2-Oct-04 23:58