|
...is this possible? how do you add userdefined properties to
the dgv unbound column properties designer.
i want to add a user defined properties on the unbound columns
settings that can be set during design time
Life - Dreams = Job
TheCardinal
BenPOS Systems
modified on Sunday, November 22, 2009 11:24 PM
|
|
|
|
|
I don't think that's possible; you are essentially asking to modify framework types.
That's generally not possible. But in most cases we can derive new types from them (when they are not sealed). In this case you could perhaps derive a custom grid type from DataGridView, a column type from DataGridViewColumn, and have your custom grid use your custom column for unbound columns. That way you can add whatever properties you like and associate your own designer class and type editors with it if you wish.
|
|
|
|
|
thanks for the reply, thats what im afraid, but i have already tried to look for more commercial product that can easily be extended 
thanks for the input, ill try your idea
Life - Dreams = Job
TheCardinal
BenPOS Systems
|
|
|
|
|
Hi All,
How can i open existing excel sheet using C# code.
For ex :In my C: directory i have xl book.i want to open and write some value.I have used below code but its giving error.am using office 2007.
string workbookPath = "c:/SomeWorkBook.xls";
Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(workbookPath,
0, false, 5, "", "", false, Excel.XlPlatform.xlWindows, "",
true, false, 0, true, false, false);
Thanks,
Mohan.T
Mohan T
|
|
|
|
|
|
Hi
Thanks for ur reply...
I have tried that
it giving below error
An unhandled exception of type 'System.NullReferenceException' occurred in testexcelwrite.exe
Additional information: Object reference not set to an instance of an object
Mohan T
|
|
|
|
|
mohant$.net wrote: An unhandled exception of type 'System.NullReferenceException' occurred in testexcelwrite.exe
Additional information: Object reference not set to an instance of an object
It clearly saying that some object is not initialize. Please go thorough the code and debugged it. Or show us the code.
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
|
|
|
|
|
Excel.Application XlApp;
Excel._Workbook XlWB;
string workbookPath = "c:/test.xls";
XlWB = XlApp.Workbooks.Open(workbookPath,0,false, 5, "", "", false, Excel.XlPlatform.xlWindows, "", true, false, 0, true, false, false);
Mohan
|
|
|
|
|
In which line it throwing the exception ? Did you debug the code ?
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
|
|
|
|
|
Its giving the exception in
XlWB = XlApp.Workbooks.Open(workbookPath,0,false, 5, "", "", false, Excel.XlPlatform.xlWindows, "", true, false, 0, true, false, false);
and Exception is:
An unhandled exception of type 'System.NullReferenceException' occurred in testexcelwrite.exe
Additional information: Object reference not set to an instance of an object.
Mohan T
|
|
|
|
|
mohant$.net wrote: XlWB = XlApp.Workbooks.Open(workbookPath,0,false, 5, "", "", false, Excel.XlPlatform.xlWindows, "", true, false, 0, true, false, false);
I think you need to initialize XlWB
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
|
|
|
|
|
I got solution...
Actuaally i missed the xlApp.Visable = true;
really sorry..
Thanks Again
Mohan
|
|
|
|
|
Great ! Go ahead !! 
Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
|
|
|
|
|
Well clearly you haven't instantiated Excel. XlApp is null. All it takes to understand this is a basic understanding of what a NullReferenceException is and a glance at the code.
|
|
|
|
|
hello all,
i need to add to my app a panel that will contain a display of files like .pdf .doc .txt. from my disk
in other words i want to have a preview of a file after i'm standing on a file name in an open file dialog.
thanks.
modified 31-Dec-20 21:02pm.
|
|
|
|
|
anyone?
modified 31-Dec-20 21:02pm.
|
|
|
|
|
What have you tried? Post your code and soemone will help you fix it, but nobody will write your code for you. Take a look at the System.IO class, that should give you some pointers.
Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP
|
|
|
|
|
i didn't asked for code,
i asket for a tool..
like printpreview, but i'm not sure that this is the best..
modified 31-Dec-20 21:02pm.
|
|
|
|
|
sagiko wrote: i asket for a tool..
Well, thats not how your post read. Anyway, as far as I know, you will need to code it yourself as you are within your application.
Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP
|
|
|
|
|
Perhaps overkill, but you could use the browser component. It won't support things like PDF natively, but if the user has Acrobat Reader (or some other program that is registered as able to open PDF files) the browser will host the viewing application. Of course this means uses may see additional UI (toolbars from the viewer app for example) depending on what they have installed on their system, but they will at least get a "preview" (actually a perfectly normal view, but perhaps scaled down).
Since you're saying "files like ..." it appears you want to show many different formats and you don't necessarily know what they are or what they will be in two years. In that respect the browser is probably a good choice, exactly because it relies upon external programs rather than having built-in support for every format. So a user who has OpenOffice will be able to preview ODT files, and an MS Office user DOC files.
|
|
|
|
|
Hi,
Does anybody can explain or share a link which will explain how to add a Bing Maps into a standalone C# program?
Thanks.
|
|
|
|
|
|
Are you suggesting Bing does not know how to interface its Maps?
Luc Pattyn [Forum Guidelines] [My Articles]
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
|
|
|
|
|
I'm working on a Service in C# that will be run on Windows and on Linux. On Linux you store app config in /etc, but on Windows XP it's "C:\Document and Settings\{USERNAME}\Local Settings\Application Data". How would I go about getting those file paths without having to worry about platform detection?
|
|
|
|
|
The app.config file is usually in the same folder as the .EXE. Assembly.GetExecutingAssembly.Location() will return the full path to the .EXE that is running. You can use the Path class to get just the path without the .EXE filename and use that to build the complete path to the app.config.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
