Re: Creating a Pause Button....... - C# Discussion Boards

Re: Creating a Pause Button.......

4-Oct-08 2:14

if you put your main processing into a separated thread. it will be easier to pause/resume the thread.

Best regards,
Jaime.

Member 46731984-Oct-08 3:24

Member 4673198

4-Oct-08 3:24

There are 5 functions are getting called for different purposes for a same argument.
when Pause button is clicked, how is it possible to know which function is executed or which one is being executed currently or which one will be executing next. And then pauses the execution till the time it is resumed by again clicking the PAUSE button....

Re: Creating a Pause Button.......

dybs4-Oct-08 12:09

dybs

4-Oct-08 12:09

Assuming your processing is all in the same class, set a class-level flag indicating the pause occurred. Also assuming your processing is being done in a loop, you might try the following:

private: bool pause;

void PauseButton_Click(Object sender, EventArgs e){
  pause = true;
}

void ContinueButton_Click(Object sender, EventArgs e){
  pause = false;
}

void ProcessFunction(){
  while(someCondition){
    if(pause){
      continue;
    }
    // Processing code goes here.
  }
}

void ProcessFunction(){
  while(someCondition){
    while(pause){
      Thread.Sleep(0);
      Application.DoEvent();
    }
    // Processing code goes here.
  }
}

I know some developers are against using Application.DoEvents() unless absolutely necessary, so you may perfer the first method. If you're trying to use the same button for pause and continue, then you just need the one event handler and just toggle your flag:

pause = !pause;

Brandon

How to access stored procedure

fancyfree833-Oct-08 20:39

fancyfree83

3-Oct-08 20:39

I have created stored procedure for calculating salary.how will i access that procedure using c#.NET

vinoth

Wendelius3-Oct-08 21:33

Wendelius

3-Oct-08 21:33

You use SqlCommand Class[^]

The need to optimize rises from a bad design

TALHAKOSEN4-Oct-08 3:40

TALHAKOSEN

4-Oct-08 3:40

Look at that, it can give you an idea )
conn = new
SqlConnection("Server=(local);DataBase=Northwind;Integrated Security=SSPI");
conn.Open();

// 1. create a command object identifying
// the stored procedure
SqlCommand cmd = new SqlCommand(
"CustOrderHist", conn);

// 2. set the command object so it knows
// to execute a stored procedure
cmd.CommandType = CommandType.StoredProcedure;

// 3. add parameter to command, which
// will be passed to the stored procedure
cmd.Parameters.Add(
new SqlParameter("@CustomerID", custId));

thanks for everything i have...

Nouman Bhatti4-Oct-08 10:08

Nouman Bhatti

4-Oct-08 10:08

if you are using SQL
then you need
1. import the system.data.sqlclient namespace
2. then create a object of sqlconnection with appropriate parameters
3. then either create a objects of sqlcommand and sqldatareader and in commad specify the storedprocedure name or you can also create a object of sqldataadaptar and sqldataset and in sqldataadaptar you can set your stored procedure name.

if u r working on anyother db than import the namespace and create objects accordingly

Jaffer Mumtaz4-Oct-08 20:17

Jaffer Mumtaz

4-Oct-08 20:17

Hi,
Visit
http://support.microsoft.com/kb/310070[^]

Try to learn to use google for such queries

Not working : Wmv file to Flv file using C#

Ashwin. Shetty4-Oct-08 20:48

Ashwin. Shetty

4-Oct-08 20:48

if you r using SQL please check the below code
string strSqlConnectionstring = "sqlserver details with provider";
System.Data.SqlClient.SqlConnection _ObjSQLCon = new System.Data.SqlClient.SqlConnection(strSqlConnectionstring.ToString());
System.Data.SqlClient.SqlCommand _ObjSqlCom = new System.Data.SqlClient.SqlCommand();
try
{
_ObjSQLCon.Open();
_ObjSqlCom.Connection = _ObjSQLCon;
// your store procedure name
_ObjSqlCom.CommandText = "Your Store procedure name";
_ObjSqlCom.CommandType = System.Data.CommandType.StoredProcedure;

// you can add parameter as per your requirement
// parameter name & datatype should be as per you have mentioned in your procedure
// set the direction of your parameter
// you need to add output parameter in the same way but direction out be output
_ObjSqlCom.Parameters.Add("your parameter name", System.Data.SqlDbType.Char, 50).Direction = System.Data.ParameterDirection.Input;
_ObjSqlCom.Parameters.Add("your output parameter name", System.Data.SqlDbType.Char, 50).Direction = System.Data.ParameterDirection.Output;
_ObjSqlCom.Parameters[0].Value = "your parameter value";
_ObjSqlCom.ExecuteNonQuery();
// to get the output value you can use either array location of that parameter or the parameter name
// if you are confused then just right click on _ObjSqlCom and view it in immediate window after you have executed _ObjSqlCom.ExecuteNonQuery();
}
catch
{

}
finally
{
strSqlConnectionstring = string.Empty;
if (_ObjSqlCom != null)
{
_ObjSqlCom.Dispose();
_ObjSqlCom = null;
}
if (_ObjSQLCon != null)
{
if (_ObjSQLCon.State != System.Data.ConnectionState.Closed)
{ _ObjSQLCon.Close(); }
_ObjSQLCon.Dispose();
_ObjSQLCon = null;
}
}
if you further douts feel free to email me at ashwin@omtechsolutions.com Smile | :)

Ashwin Shetty. Mumbai. India

elango.sham3-Oct-08 20:24

elango.sham

3-Oct-08 20:24

Hai all,

In my application i am using the code below i mentioned. But it couldn't converted into flv format and its not saved into specified path .Can any one help me to do this using c#.

Process ffmpeg,hai;

string video;

string mpg;

video = Page.MapPath("new clip_04.wmv");

mpg = Page.MapPath("") + "\\video.flv";

ffmpeg = new Process();

ffmpeg.StartInfo.Arguments = " -i " + video + " -s 480*360 -deinterlace -ab 32 -r 15 -ar 22050 -ac 1 " + mpg;

ffmpeg.StartInfo.FileName = Page.MapPath("ffmpeg.exe");

ffmpeg.Start();

ffmpeg.WaitForExit();

ffmpeg.Close();

How to get mouse pointer of object after using Graphics.ScaleTransform()?

cocoonwls3-Oct-08 18:08

cocoonwls

3-Oct-08 18:08

Hi all,

I have a image with point(10,10). I can move that image by using mouse when point to location point(10,10). Now, i am using Graphics.ScaleTransform(0.9f,0.9f) to resize the image. My question is,how can i change the location point of that image after resize?(It should not be at point(10,10) anymore,am i right?)

Any idea or hits are welcome.

regards
cocoonwls

Re: How to get mouse pointer of object after using Graphics.ScaleTransform()?

cocoonwls15-Oct-08 0:10

cocoonwls

15-Oct-08 0:10

Dear all,

Finally i am find out a way to do that, below is the sample code Laugh | :laugh:

//in pixel
PointF ScalingFactor = new PointF(1, 1);
//get world position, zoomvalue is float type
PointF viewPoint = new PointF((float)(e.X) * (ScalingFactor.X / zoomvalue),
                             (float)(e.Y) * (ScalingFactor.Y / zoomvalue));
//replace the exsiting MouseEventArgs(e) and this will send to mouse event args
MouseEventArgs WorldPosition = new MouseEventArgs(e.Button, 
                                                  e.Clicks, 
                                                  (int)viewPoint .X, 
                                                  (int)viewPoint .Y, 
                                                  e.Delta);

Note: Example code refrence from project "DrawToolsForRoman"

regards,
cocoonwls

WebBrowser Control and Images

#realJSOP3-Oct-08 17:18

3-Oct-08 17:18

I've got the WebBrowser control displaying my html, but it seems to not be able to handle images (I'm using a fully qualified path, and it still doesn't work). What am I missing?

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Jaime Olivares3-Oct-08 19:21

Re: WebBrowser Control and Images [modified]

3-Oct-08 19:21

are you using the "file" protocol? Like

Best regards,
Jaime.

#realJSOP3-Oct-08 22:48

3-Oct-08 22:48

That doesn't seem to work either. Frown | :(

I also just found out that I can't load/apply an external stylesheet...

modified on Saturday, October 4, 2008 6:13 AM

Jaime Olivares4-Oct-08 2:16

4-Oct-08 2:16

John Simmons / outlaw programmer wrote:
I also just found out that I can't load/apply an external stylesheet

That's not true, you can use stylesheets in local html files.
Maybe you have not described your problem clearly.

Best regards,
Jaime.

#realJSOP4-Oct-08 2:35

4-Oct-08 2:35

I didn't say the control couldn't. I was saying I can't get it to. Here's the code:

private string BuildHtml()
{
	StringBuilder builder = new StringBuilder("");
	builder.Append("<html>");
	builder.Append("<head>");
	builder.AppendFormat("<base href='{0}' />", Application.StartupPath);

	// this line doesn't appear to have any effect
	//builder.Append("<link rel='stylesheet' type='text/css' href='cpam.css' />");

	// but this code works
	builder.Append("<style>");
	builder.Append("body { font-family:arial; font-size:11pt; }");
	builder.Append(".articleTable { width:100%; border:0; background-color:Black; ");
	builder.Append("                font-family:arial; font-size:11pt; }");
	builder.Append(".darkRowChanged { background-color:#B1E3FF; }");
	builder.Append(".lightRowChanged { background-color:#E5F6FF; }");
	builder.Append(".darkRow { background-color:#EEE; }");
	builder.Append(".lightRow { background-color:white; }");
	builder.Append(".descText { font-size:9pt;color:#777;margin-top:3; }");
	builder.Append(".titleText { font-weight:bold; font-style:italic; }");
	builder.Append(".headerRow { background-color:#999; height:20px; line-height:20px; }");
	builder.Append(".dataRow { height:60px; }");
	builder.Append("</style>");

	// closing open tags
	builder.Append("</head>");
	builder.Append("<body>\n");
	builder.Append("</body>");
	builder.Append("</html>");
	return builder.ToString();
}

// usage 
this.webBrowser1.Navigate("about:blank");
HtmlDocument doc = this.webBrowser1.Document;
doc.Write(string.Empty);
this.webBrowser1.DocumentText = BuildHtml();

I've also tried the following to get the file:

href="./cpam.css"
href="c:\fully\qualified\path\cpam.css"

I have a feeling that if I can find out why either images won't display or the css file won't load, the whole thing will fall into place. I simply don't know what I've missed here, and finding info with google on this problem is impossible because of the lack of documentation anywhere concerning the webbrowser control.

Jaime Olivares4-Oct-08 2:50

4-Oct-08 2:50

again, you should try with the file protocol:

href="file://c:\fully\qualified\path\cpam.css"

Best regards,
Jaime.

#realJSOP4-Oct-08 3:13

4-Oct-08 3:13

I *did* try that and it didn't work.

Everything I've managed to find on the web says that the normal DOS path should work, and nobody else has mentioned the "file://" thing.