|
i refer to this book-'visual c# 2005 how to program'(pearson international edition)
//the program to loads data for the rows with the specified last name into the addressbookDataSet.Address table
private void findButton_Click(object sender, EventArgs e)
{
//fill the DataSet's DataTable with only rows containing the user-specified last name
addressTableAdapter.FillByLastName(addressBookDataSet.Address, findTextBox.Text);
}
but when i implement this coding to my program error happens:
private void enterButton_Click(object sender, EventArgs e)
{
this.rEGISTERTableAdapter.FillByRFID(this.rFIDdbDataSet.REGISTER, this.rfidTextBox.Text);
}
it said:-Error-1 No overload for method 'FillByRFID' takes '2' arguments
I've already added query to the table adapter using the instruction in the book,i really don't understand why this error happens
|
|
|
|
|
Intellisense will tell you how many arguments it should be expecting. What does it say ?
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
|
|
|
|
|
how to use the intellisense?
|
|
|
|
|
It just happens. Hit the comma and it will pop up and show you the method signature. Even when you type the opening brackets, it should appear. You can also right click and choose 'go to definition'
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
|
|
|
|
|
this appear when i hit the comma
->int REGISTERTableAdapter.FillByR(RFIDdbDataSet.REGISTERDataTable dataTable)
|
|
|
|
|
hwyr 554 54t5 545y y 45
Anuj Kumar y54y545
|
|
|
|
|
I need to know where the taskbar is in my C#, WinForms app. I tried googling as well as searching the MSDN for something useful but nothing came up apart from that:
http://msdn.microsoft.com/en-us/library/bb787949(VS.85).aspx[^]
and I don't know what's the easiest way insert WinAPI code into a C# application. Or perhaps there's a better way?
TIA,
Greg
|
|
|
|
|
The easiest way to use WinaApi in C# is P/Invoke[^]
Giorgi Dalakishvili
#region signature
my articles
#endregion
|
|
|
|
|
It depends what you're wanting to do with it, as different things will require different API calls. Have a look at pinvoke.net[^]. They have C# examples for nearly everything!
Dave
|
|
|
|
|
Maybe you could use the difference between the Bounds and WorkingArea of the Screen object to locate the task bar.
|
|
|
|
|
I've searched everywhere, and this looks like the code i used to use before i stopped coding and started school work.
Form1 form = new Form1();
form.Show();
but now it will not open my second form that i am making in conjunction with this project.
Error 1 Cannot implicitly convert type 'WindowsFormsApplication1.Form2' to 'WindowsFormsApplication1.Form1' C:\Documents and Settings\Nick\My Documents\Visual Studio 2008\Projects\Project\Project\Form1.cs 44 26 Project
This is the error message I keep getting, i made sure the second form name was Form2 as well to make sure nothing was messing up.
|
|
|
|
|
Form2 form2 = new Form2();
form2.show();
assuming second form is called Form2 and in the same namespace.
Dave
|
|
|
|
|
Thanks for your help. I remembered what it was just not how to use it.
P.S. you were close,
Form2 form2 = new Form2();
form.show();
is the right way ^_^
modified on Monday, June 2, 2008 6:12 PM
|
|
|
|
|
No, that's utterly broken. Your form2 instance is never shown, you're showing a different form entirely. What is form2 for ?
Oh, and never create local variables and then show them modelessly ( show ). Use showdialog, or use member variables.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
|
|
|
|
|
Christian Graus wrote: Oh, and never create local variables and then show them modelessly ( show ). Use showdialog, or use member variables.
What is side-effect(problem) in using form.show() ?
Memeber variales, Does they mean memeber at class level?
|
|
|
|
|
ummm no thats wrong.
C# Beginner Nick wrote: form.show();
where have you declared the instance 'form'?
C# Beginner Nick wrote: Form2 form2 = new Form2();
If you create an instance of form2, then to show it, you use:
<br />
form2.Show();<br />
Cheers,
|
|
|
|
|
C# Beginner Nick wrote: Form2 form2 = new Form2();
form.show();
Newing a Form2 instance and Show a form that were instance somewhere else, is probably the lurking problem waiting to happen in your original post.
|
|
|
|
|
C# Beginner Nick wrote: P.S. you were close
No, I was correct.
Your initial code was:
Form1 form = new Form1();
form.Show();
doing
Form2 form2 = new Form2();
form.show();
will create an instance of Form2 (form2 ) that is not used, but will show your Form1 instance again (form ).
Dave
|
|
|
|
|
Hi,
Can a windows service run a console application?
Basically my goal is to have a windows service with a FileSystemWatcher monitor a directory. If that directory has any MS Word documents in it, convert them to pdf and then move them to their final resting place.
I've created the windows service, it finds the files and starts a MS Word in the background. But on the line that opens a document, it fails. I presume because its running from a windows service and MS Word is probably trying to display some dialog. So my thinking is that if I move the conversion functionality to a console app and just let the windows service do the monitoring it will work.
Thanks for the feedback!
Just because we can; does not mean we should.
|
|
|
|
|
Your service can launch a console app (invisible if necessary) and pass arguments to it etc... so pass the filename to be opened to the console app and let that handle the word/pdf stuff.
Dave
|
|
|
|
|
Thank you
Just because we can; does not mean we should.
|
|
|
|
|
Hello Everyone! I need help with a code that i need to write. Can someone please point me in the right direccion? What i need to do is the following:
Create a C# script that will scan LDAP for an attribute called lbpcsfax, then scan AD for lbpcsfax(lbpcsfax is like a user's property like phone#, fax# ). The script should compare both and then generate a txt file only with the discrepancies on both. Let's say a user in LDAP has a fax number and in AD appears as not having one or viceversa. The output should look like:
XPID.............Display name............LDAP fax#...............AD fax#
jpeterson........Peterson, John.......123-519-1234...........No fax# found
jmichels..........Michels, Jon............No fax# found...........232-559-2020
Then the program should copy the txt file to an email.
Program should recognize the user's credential when running from user's machine. No need to create any kind of security setting for AD.
Any help is greatly appreciated.
|
|
|
|
|
What exactly are you having problems with? If you don't know where to start, look at the System.DirectoryServices and System.DirectoryServices.ActiveDirectory namespaces and the DirectoryEntry and DirectorySearcher classes. If you have a specific area you're stuck on, please give us more details so we can help you.
|
|
|
|
|
Hi
In the article SNMP Library by zitun, the "testSet" function does not work as expected because you cannot change the name of a computer by a snmp request. Here's the message:
Error: SNMP: Variable does not exist; status: NoSuchName; index: 0
*** SNMP protocol error while processing <op>:
SNMP error status: NoSuchName
SNMP error index: 0
Error: SNMP: Variable does not exist; status: NoSuchName; index: 0
My problem is that I always get this error whenever I try to set a value in the printers on the network. There are 45 printers and all of them are Xerox - Phaser 4510. There's one in which the set command works: Lexmark T430. But this one isn't being shared like the others. My goal is to control the maximum number of printed pages by sector. If one exceeds the monthly limit then the printer must be blocked. The project is almost finished, but I'm stucked at this little set command.
I've already tested the program using the library from AdventNET but a similar message appears...
I'm afraid the solution is somewhat related to permissions on the network but this would be very strange, as I've looked a thousand times the configurations and everything is fine.
It's obvious impossible "the variable does not exist" because I CAN get the value!
-----------------
// A simple set
public static void snmpset(string hostName, string oid, string value)
{
SNMPDll.SNMPAgent agent = new SNMPDll.SNMPAgent(hostName);
SNMPDll.SNMPObject s = new SNMPDll.SNMPObject(oid);
agent.setValue(s, SNMPDll.SNMPOIDType.OctetString, value + "\0");
}
Thanks for your attention, Icaro.
|
|
|
|
|
Hello friends,
I want to keep a search option in my form. Which is consist of a combo and a text box.
The combo will contain different criteria on which the user will search. And in the text field the user will input the specific item. Suppose one wants to search things based on DepartmentId. So he will select departmentid from the combo box and he will input the departmentid number in the text box to see all result.
Now what i want to do is that whenever he selects departmentid from the combo box and suppose the first char he wrote in the text box is 1, what will happen whenever he press 1 all departmentid starts with 1 will appear in a pop-up type of somthing below so it becomes even more easier for him to select the exact departmentid. Now can anyone plzz help me?
|
|
|
|