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How do I invoke external windows applications (AutoCAD) through C#.Net code?
Zaki
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My english is poor,so if i misunderstood your question please do not make fun of me.
System.Diagnostics.Process.Start(String filePath);
the parameter filePath you can read form the regedit;
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How do cut data from datagrideview ?
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to cut data from gridview
there are two ways:
1. cut datafrom grid source
2.cut the grid rows or columns
we can delete rows or columns by this way
//gridview1.Deleterow(indindex)
//gridview1.col
for more pls inform me
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Hey all,
I hope someone can point me in the right direction, if im in the wrong place please let me know - didn't want to post in the WCF forum as this is still the old version 2.0 remoting.
I have created a remoting object - although it still looks really limited - however i still don't get the 'why' of remoting.
In this case i thought that remoting would be the correct way to get my service to communicate with a UI.
I have written a UI, it starts up as a separate client (with lets call it UIConsoleInterface), and instantiates a object (lets call it UIConsole) in the server menory/process/etc space.
The issue i have must be simple as no one actaully talks about the bit that is confusing me.
When the object is created in the server (UIConsole)it is created as a singleton - but it is started on demand from the client. This means that i can't initialise variables etc in the object as my application has no idea that is has been created (right?)
The issue is that the UI is state dependent - it needs to know what is going on in the service, all examples i've seen just work with data created during the constructor of the remotable object.
The only way round this that i can see is to create a static object that my UIConsole object can call to get data from the application - this seems really very messy.
I also have tried to create a local UIConsole object during the server startup - this involves activators and unwrapping the object - but even then when my client connects it creates a second instance of UIConsole.
So first question - What's the best way to get a service to communicate (2-way) with a UI
Second question - what is the official/best practices way to tie a remotable object to local data on your server?
Or should i just get over it and use the static object as my bridge between the service data and the local remotable object?
Any help appreciated!
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Hi,
trying to help with my limited experience (a 1 time use of remoting which was great for me)
I've stopped at this line in your question,
I also have tried to create a local UIConsole object during the server startup - this involves activators and unwrapping the object - but even then when my client connects it creates a second instance of UIConsole.
in my application I've used remoting for a 2nd instance of my application to communicate with the first and only one,
make your server rerun the client with parameters (parameters== the data you want to send to the client),
make an if to check if there is an instance already running (you can find a lot of examples to that on google and in this site),
if its not the first time, instead of running for the 2nd time, use remoting to send the parameters to the first instance,
(if you need help with that part i can help), and quit the 2nd instance
hope this helps in something
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In C# fore color of datimepicker have default color black.
Now, I want to change fore color :Black->blue
Do i do?
Thanks
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Unfortunately this is not possible. MS have hardcoded it to use either SystemColors.ControlText or Colors.Black (I'm not sure which).
The ForeColor property is hidden as any change to it is ignored.
You can 'roll your own' by deriving from DateTimePicker. In the constructor call
Style(ControlStyles.UserPaint, true); then override OnPaint and draw it yourself.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
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This enables use of the BackColor as well as ForeColor. I've used the DropDownButton part of the ComboBox for ease. I haven't implemented any of the editing on the text part of the control that is available in the .Net supplied one as that isn't quite as trivial! I also haven't checked the Enabled state to alter the way it's drawn, and I haven't drawn any border around the control as I can't remember how to get the colors in use by the system. 
So there's plenty left to do but it should give you a start.
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
namespace MyControls
{
public class MyDateTimePicker : DateTimePicker
{
public MyDateTimePicker()
: base()
{
this.SetStyle(ControlStyles.UserPaint, true);
}
[Browsable(true),
EditorBrowsable(EditorBrowsableState.Always),
DefaultValue(typeof(Color), "Window")]
public override Color BackColor
{
get { return base.BackColor; }
set { base.BackColor = value; }
}
[Browsable(true),
EditorBrowsable(EditorBrowsableState.Always),
DefaultValue(typeof(Color), "WindowText")]
public override Color ForeColor
{
get { return base.ForeColor; }
set { base.ForeColor = value; }
}
protected override void OnPaint(PaintEventArgs e)
{
StringFormat stringFormat = new StringFormat();
stringFormat.LineAlignment = StringAlignment.Center;
using (Brush brush = new SolidBrush(BackColor))
{
e.Graphics.FillRectangle(brush, 0, 0, ClientRectangle.Width, ClientRectangle.Height);
}
using (Brush brush = new SolidBrush(ForeColor))
{
e.Graphics.DrawString(Text, Font, brush, ClientRectangle, stringFormat);
}
Rectangle dropDownRectangle = new Rectangle(
ClientRectangle.Width - Height, 0, Height, Height);
if (ComboBoxRenderer.IsSupported)
ComboBoxRenderer.DrawDropDownButton(e.Graphics, dropDownRectangle, ComboBoxState.Normal);
else
ControlPaint.DrawComboButton(e.Graphics, dropDownRectangle, ButtonState.Normal);
}
}
}
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
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hello sir/mam
i have a problem plz solve me out this problem.
i am working on a window application in c# .i have a datagrid which contain a DataGridBoolColumn and datagridtextboxcolumn.i am using table name as stock which contains feild subject,bookname,rate,sellrate,quantity.lbltotal is the label which shows the the total of sellrate.now my problem is that i have to show only those total which are checked
means if any one unchecked the check box the sellrate must be deducted in the from the total.
and i have to insert all the rows of the datagrid in the table except those which are uncheked.plz help me . thanks in advance 
try
{
SqlConnection cn=new SqlConnection(Class1.connect());
SqlDataAdapter cmd=new SqlDataAdapter("select subject , bookname,rate,sellrate ,quantity from stock where class ='"+txtclass.Text+"'",cn);
// DataSet dt=new DataSet();
DataTable dt=new DataTable("stock");
cmd.Fill(dt);
dataGrid1.DataSource=dt;
this.dataGrid1.TableStyles.Clear();
DataGridTableStyle tb=new DataGridTableStyle();
tb.MappingName="stock";
DataGridBoolColumn td=new DataGridBoolColumn();
td.MappingName="rate";
td.HeaderText="";
td.AllowNull=true;
td.Width=20;
tb.GridColumnStyles.Add(td);
DataGridTextBoxColumn txt=new DataGridTextBoxColumn();
txt.MappingName="Subject";
txt.HeaderText="Subjects";
txt.Width=160;txt.ReadOnly=true;
tb.GridColumnStyles.Add(txt);
txt=new DataGridTextBoxColumn();
txt.MappingName="bookname";
txt.HeaderText="Book Name";
txt.Width=200;
txt.ReadOnly=true;
tb.GridColumnStyles.Add(txt);
txt=new DataGridTextBoxColumn();
txt.MappingName="sellrate";
txt.HeaderText="Rate";
txt.Width=160;
txt.ReadOnly=true;
tb.GridColumnStyles.Add(txt);
dataGrid1.TableStyles.Add(tb);
// SqlConnection cn=new SqlConnection(Class1.connect());
SqlCommand cd=new SqlCommand("select sum(sellrate) from stock where class='"+txtclass.Text+"'",cn);
cn.Open();
SqlDataReader dr=cd.ExecuteReader();
if(dr.Read())
{
lbltotal.Text="Total = "+dr[0].ToString();
}
else
{
lbltotal.Text="Total = 0 0";
}
cn.Close();
}
catch(Exception ex)
{
MessageBox.Show(ex.Message,Class1.name());
lbltotal.Text="Total = 0 0";
}
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well, you should you make a function 'UpdateTotal' and call it on that column value change event.
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
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I do not really understand what your mean,
I suggest if you can like this:
td.TrueValueChanged += new EventHandler(td_TrueValueChanged);
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Send receive files over bluetooth, discover bluetooth devices using franson bluetools on Pocket PC (Windows Mobile)
modified on Saturday, March 7, 2009 3:39 PM
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There's samples etc on the vendor's site[^] and a reference manual[^]. All that from the first result in Google[^].
Please search in future before asking here - especially when it comes to 3rd party tools!
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
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Dear friends,
i have a multi dimentional matrix, for example x[][], i want to sort it by one coloumn, for example:
coloumn 1: ab , uh, wh, ko, to
coloumn 2: 12, 8, 11, 3 , 1
Soretd Matrix that i want is:
coloumn 1: ab, wh, uh, ko, to
coloumn 2: 12, 11, 8, 3, 1
can anybody help me?
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Depends on what exactly a column is - do you have have an array of rows or an array of columns?
If you have an array of rows, sorting by the first column should be easy:
(warning: untested)
static void SortByColumn<T>(T[][] data, int column) where T : IComparable<T>
{
Array.Sort<T[]>(data, (T[] row0, T[] row1) =>
{
return row0[column].CompareTo(row1[column]);
});
}
Last modified: after originally posted -- angle bracket formatting failure..
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Hey guys,
I need to click pictures using a webcam.... in c#.....
how to do it???
Any reference or link will help a lot...
Waiting for ur reply
Umang Jain
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What? A webcam is an image/video capture device. A mouse is a pointing/clicking/scrolling device. I don't see how you're going to make these interchangeable.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
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i want to capture images using a webcamera in c#... whenever the user wants i.e. by clicking a button alongside....
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Here[^] is one. If you search here / google you'll find many others.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
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Hi everybody.
Just spent some very frustrating houres fighting with Vista.
Wanted to know, what exception I get, when I write to a folder where I hav no rights. OK - just some lines and I'll see:
StreamWriter sw = null;
try
{
sw = new StreamWriter( @"C:\Windows\System32\MyService\test.txt", true, Encoding.GetEncoding( "windows-1252" ) );
sw.WriteLine( "sometext" );
}
catch (Exception e)
{
MessageBox.Show( e, "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Warning );
}
finally
{
if (sw != null) sw.Close();
}
I took C:\Windows\System32\MyService\test.txt because I was to lazy to change the rights of some testpath and I know (knew?) I could not write there as 'normal user'.
The result: no exception and no file???
what the?
check the path - OK
try to write from cmd (copy con: C:\Windows\System32\MyService\test.txt) - Access is denied. 0 file(s) copied.
So I change the rights for Users on C:\Windows\System32\MyService to Full Access.
Rerun of prog gives the same results???
copy con: now works
After some headscratching and wondering I changed the filename in the program to test2.txt. Now it writes the file. Back to test.txt - no exception and no writing???
Took away Full Access (and write and modify and write) and tried test3.txt. As expected no and no. Back to Full Access - test3.txt no and no, test4.txt no problem.
I created a new folder under System32. Same results as before.
If I do the same with a path like C:\testpath, everything works as expected. Normaly I can write, if I take away some rights (deny write or something) I get my exception (UnauthorizedAccessException by the way)
So how does .NET or something first supress an exception and then somehow remember it later?
Please help
Norbert
PS. please forgive any errors in my english
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