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I am working on a Data Grid View control that stores values of a matrix. The values can only be integers or floating point values. I have two problems:
1. How can I retrieve values from the DataGridView Control and store it in a double 2D array. Please tell me the approperiate method.
2. Can I bind the DataGridView Control to a specific data type, e.g. double, so that automatic validation can be done on the values entered.
Thanks
Naveed
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Hello,
I am trying to use our 3rd party fax software FaxPress. It requires this line of text to be called during a command line.
Our old VB 6 app is doing this but using a shell command. I was told this could be done using the Process class in C#.
Here is what I have:
<br />
private void GenerateFax(string output, string subject, string faxPress, string account, string files, string phone)<br />
{<br />
StringBuilder executeString = new StringBuilder();<br />
executeString.Append("SubmitFax /S " + faxPress);<br />
executeString.Append(" /U " + account);<br />
executeString.Append(" /R " + phone);<br />
executeString.Append(" /O " + output);<br />
executeString.Append(" /B " + subject + " ");<br />
executeString.Append(files);<br />
executeString.Append(" " + "/C NO COVER PAGE");<br />
<br />
Process process = new Process();<br />
process.StartInfo.Arguments = executeString.ToString();<br />
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;<br />
process.Start();<br />
}<br />
Does this look right? Is process.StartInfo.Arguments the right property? There is no batch file or .exe to be called, just this string.
Thanks for any help!
Chris
-- modified at 15:23 Wednesday 5th April, 2006
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I'm not sure, but you might have to set the targeted app to cmd.exe, or even run cmd.exe, and pass the comand line parameters through it's input stream.
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Like so? :
private void GenerateFax(string output, string subject, string faxServer, string account, string files, string phone)
{
StringBuilder executeString = new StringBuilder();
executeString.Append("SubmitFax /S " + faxServer);
executeString.Append(" /U " + account);
executeString.Append(" /R " + phone);
executeString.Append(" /O " + output);
executeString.Append(" /B " + subject + " ");
executeString.Append(files);
executeString.Append(" " + "/C NO COVER PAGE");
Process process = new Process();
process.StartInfo.FileName = "cmd.exe";
process.StartInfo.Arguments = executeString.ToString();
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.Start();
}
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tryston02 wrote: Like so? :
Does it work?
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Not sure yet. I have to get the new number for our fax machine. I'll let you know.
Thanks for the help!
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Off the top of my head, this won't work. Firstly cmd won't return (i.e. close) and it won't execute SubmitFax as the /C argument of cmd is missing. Instead use SubmitFax for the FileName property:
private void GenerateFax(string output, string subject, string faxServer, string account, string files, string phone)<br />
{<br />
StringBuilder executeString = new StringBuilder();<br />
executeString.Append("/S " + faxServer);<br />
executeString.Append(" /U " + account);<br />
executeString.Append(" /R " + phone);<br />
executeString.Append(" /O " + output);<br />
executeString.Append(" /B " + subject + " ");<br />
executeString.Append(files);<br />
executeString.Append(" " + "/C NO COVER PAGE");<br />
<br />
Process process = new Process();<br />
process.StartInfo.FileName = "SubmitFax";<br />
process.StartInfo.Arguments = executeString.ToString();<br />
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;<br />
process.Start();<br />
}<br />
Graham
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Graham,
Thanks for the input, however when I try this I get the following error:
"The system cannot find the file specified"
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Don't forget to prepend the path of SubmitFax to the FileName property.
process.StartInfo.FileName = @"C:\Path To Program\SubmitFax.exe";
If the SubmitFax is in the same directory as the exe, you can use
process.StartInfo.FileName = Application.StartupPath+@"\SubmitFax.exe";
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Looks like our Fax Server is not working. I will let you know once it's back up.
Thanks again for your help!
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Ok, The server is up and working. Here's my code:
private void GenerateFax(string outputDirectory, string subject, string faxServer, string account, string files, string phone)
{
StringBuilder executeString = new StringBuilder();
executeString.Append("SubmitFax /S " + faxServer);
executeString.Append(" /U " + account);
executeString.Append(" /R " + phone);
executeString.Append(" /O " + outputDirectory);
executeString.Append(" /B " + subject);
executeString.Append(" /A" + files);
executeString.Append(" /C NO COVER PAGE");
Process process = new Process();
process.StartInfo.FileName = @"C:\FaxPressExe\SubmitFax.exe";
process.StartInfo.Arguments = executeString.ToString();
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.Start();
}
Now when I run it I receive this error:
The instruction at "0x73dd442d" referenced memory at "0x00c99805". The memory could not be "read"
Any ideas?
-- modified at 11:27 Thursday 6th April, 2006
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You forget to replace:
executeString.Append("SubmitFax /S " + faxServer);
with this:
executeString.Append("/S " + faxServer);
"SubmitFax" is being submitted as a parameter, so it need removing (as above).
Anyway, it sounds like it's running the process as it returned an error.
Graham
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Hi everybody!
I'm new on C# programming. I have a main form in my Windows applications that contains other form as a Explorer of folders. I don't want to allow to drag the Explorer form (FrmExplorer). FrmExplorer has a TreeView. I have been looking for information about it and have written the following code:
public partial class FrmExplorer : Form
{
public FrmExplorer(string fileName)
{
InitializeComponent();
this.QueryContinueDrag += new System.Windows.Forms.QueryContinueDragEventHandler(this.FrmExplorer_CancelDrag);
}
private void FrmExplorer_CancelDrag(object sender, QueryContinueDragEventArgs e)
{
e.Action = DragAction.Cancel;
}
}
I have set the method FrmExplorer_CancelDrag in FrmExplorer Properties in the event QueryContinueDrag. But I still cannot reach the method FrmExplorer_CancelDrag when dragging the form to cancel that action.
Does anybody can help me to know what I'm doing wrong or what is it missing?
Thanks a lot in advance,
Elvia
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Hi,
How can i recognise/detect barcode type ?
I see alot of posts about creating barcode image and so on but I havent seen any code that recognise barcode type, any help?
Thanks.
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Usually the barcode reader converts the barcode into either keypresses or serial (RS232) data.
Gary
Flickr Photos[^]
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Yes but how to recognise string that i got from barcode reader
lets say we have string that says: 0075678164125, but what type of barcode is this is it code 39 ean or upc ... ?
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I'm reading a value from an ini file, ultimately by pinvoking GetPrivateProfileString from kernal32.dll. THe issue is that I want to be able to read a multiline value from one setting. I tried entering the value in the ini like this "multilineValue = line1 \n line2 \n line3", but when I read it from the file and look at it in debug I get '@"line1 \n line2 \n line3"' and the \n's are treated as string literals instead of control chars when I write the value out.
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You can replace that character combination with a newline:
str = str.Replace("\\n", Environment.NewLine);
---
b { font-weight: normal; }
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I have an xml file and I am trying to use selectnodes with an xpath expression which is not working. After trial and error I found that the xml file has this rootnode <batchRequest onError="exit" xmlns="urn:oasis:names:tc:DSML:2 :core"> and it is getting thrown off with the attribute xmlns. If I remove the xmlns attribute the xpath works fine. The xml file is a DSML message that I am receiving from another application.
Is this a bug or some limitation of the xpath? Does xpath has any limitations when it sees an xmlns attribute? Can any one suggest a workaround with this problem.
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Please don't cross post.
BanjaraBoy wrote: Is this a bug or some limitation of the xpath?
Neither.
You either have to specify the namespace prefix in the xpath expression, or use an XmlNamespaceManager, to access the nodes in the namespace.
---
b { font-weight: normal; }
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I have no problems sending a soap header in my call but how do i read the soap
header response. This is using the proxy generated class I modified it to send
the header info.
Heres an excerpt of what i have:
<br />
private SessionInfo objHeader = null;<br />
<br />
[System.Web.Services.Protocols.SoapHeader "sessionObject",Direction=SoapHeaderDirection.Out)]<br />
[System.Web.Services.Protocols.SoapRpcMethodAttribute("execute", RequestNamespace=_RequestNS, ResponseNamespace=_RequestNS)]<br />
[return: System.Xml.Serialization.SoapElementAttribute("result")]<br />
public string execute(string sql) <br />
{ <br />
object[] results = this.Invoke("execute", new object[] {sql});<br />
return ((string)(results[0]));<br />
}<br />
The sessionObject is a property that set's the private objHeader. How in the world
do i read the header coming back from the soap call
This is what the header object looks like:
<br />
[XmlRoot("SessionInfo")]<br />
public class SessionInfo : SoapHeader<br />
{<br />
<br />
[XmlAttribute("xmlns")]<br />
public string xmlns=@"http://www.aspconverters.com/SessionInfoHeader";<br />
<br />
[XmlElement(ElementName="SESSION_USER")]<br />
public string SESSION_USER = "";<br />
<br />
[XmlElement(ElementName="SESSION_ID")]<br />
public string SESSION_ID = "";<br />
<br />
[XmlElement(ElementName="SESSION_SIGNATURE")]<br />
public string SESSION_SIGNATURE = "";<br />
<br />
[XmlElement(ElementName="messageID")]<br />
public string messageID = "";<br />
<br />
[XmlElement(ElementName="id")]<br />
public string id = "";<br />
}<br />
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Is there some way anyone knows to clear out the handlers for an event? An object I've created needs to clear all handlers to it at a point in the code where it is unknown what is attached to it.
You can't just set the event to null, the compiler complains about that. I've also tried the following to no effect:
...
if (MyEvent != null)
{
Delegate[] delegateList = MyEvent.GetInvocationList();
foreach (MyEventHandler meh in delegateList)
{
MyEvent -= meh;
}
}
...
I thought it showed promise (the compiler didn't complain, and it did run fine) - unfortunately it simply didn't do anything.
I've also tried some variations to the above, using the normal way of decoupling from an event, but by trying some of the values of the delegate to get the method:
...
if (MyEvent != null)
{
Delegate[] delegateList = MyEvent.GetInvocationList();
foreach (MyEventHandler meh in delegateList)
{
MyEvent -= new MyEventHandler(meh.Method);
}
}
...
- but the Delegate.Method property (as well as it's properties) don't seem to contain the right value wanted (the compiler makes noise about the fact that a property is being passed in to the handler instead of a method).
I think I'm on the right track, but seem to be missing some key element to make it work. Anyone have any ideas?
-----
In the land of the blind, the one eyed man is king.
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Vineas wrote: ...
if (MyEvent != null)
{
Delegate[] delegateList = MyEvent.GetInvocationList();
foreach (MyEventHandler meh in delegateList)
{
MyEvent -= new MyEventHandler(meh.Method);
}
}
Try using:
if (MyEvent != null)
{
Delegate[] delegateList = MyEvent.GetInvocationList();
foreach (MyEventHandler meh in delegateList)
{
MyEvent -= meh;
}
]
Basically your trying to remove a delegate that you've only just created, me thinks, what you need is a reference to the actual delegate as the above code demonstrates.
Ed
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