C#

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Re: HDD Serial Number Socheat.Net11-Feb-09 14:07 Socheat.Net 11-Feb-09 14:07  I not mean like that, I mean get the HDD serial that has on the HDD.      Socheat Help for someone whos memory is going fast. Henry Minute10-Feb-09 12:56 Henry Minute 10-Feb-09 12:56  Some properties, in controls, like Font, ForeColor etc. that automatically pick up their value from their parent control have a special name in .Net I thought they were called Foundation Properties but I cannot find any reference to that. Would someone please help a chap whos few remaining brain cells are becoming weaker by the day. WTF are they called? Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” Re: Help for someone whos memory is going fast. Alan N10-Feb-09 13:41 Alan N 10-Feb-09 13:41  Ambient,that is unless my memory is going too! Alan. Re: Help for someone whos memory is going fast. Henry Minute10-Feb-09 13:46 Henry Minute 10-Feb-09 13:46  Thanks a bunch! Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” Which Is Better - Signed or Unsigned Assemblies? BlitzPackage10-Feb-09 11:00 BlitzPackage 10-Feb-09 11:00  Good People, I have a quick question. The Infragistics graphing controls (for WPF) come in two flavors - signed assemblies and unsigned assemblies. What is the difference? Also, I am working on an application that will be sold to the general public, should I use signed or unsigned graphing assemblies? Which one is better? Thanks, BP Re: Which Is Better - Signed or Unsigned Assemblies? je_gonzalez10-Feb-09 11:46 je_gonzalez 10-Feb-09 11:46  Check this: http://www.morganskinner.com/Articles/StrongNameIdentityPermission Re: Which Is Better - Signed or Unsigned Assemblies? #realJSOP10-Feb-09 23:38 #realJSOP 10-Feb-09 23:38  Signed. Always protect your customers and yourself to the fullest extent possible. Also, use an obfuscation tool. "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 How to use a string or char array to refer to a control t_feras10-Feb-09 10:41 t_feras 10-Feb-09 10:41  Hello, I am trying to build an application where I can navigate through a series of images (either forward or backward). For example, if the "forward" button is pressed, the current displayed image is collapsed and the next image will be displayed. In my application, the image control names for these images are: Image1, Image2, Image3, etc. I currently have over 150 images that I am trying to manipulate. I'd like to find a way to use a string or char array to refer to the image control name. So far I have no luck as I am not very familiar with C#. I copied below a snippet of what I am trying to do: private void ShowPreviousImage() { //proceed backward to show the previous image string currentImage; string nextImage; char [] buf; if (imagePosition > 0) //imagePosition is the index of the image that is currently displayed { currentImage = "image" + imagePosition; nextImage = "image" + (imagePosition -1); buf = currentImage.ToCharArray(); buf.Visibility = System.Windows.Visibility.Collapsed; //Error generated: ‘System.Array’ doesnot contain a definition for ‘Visibility’ and no extension //method ‘Visibility’ accepting a first argument of type ‘System.Array’ could be found… //Same thing I get when I use the original string as shown below currentImage.Visibility = System.Windows.Visibility.Collapsed; //Error generated ‘String’ doesnot contain a definition for ‘Visibility’ and no extension //method ‘Visibility’ accepting a first argument of type ‘System.Array’ could be found… imagePosition--; } } Any help will be appreciated. Regards, Re: How to use a string or char array to refer to a control Christian Graus10-Feb-09 12:43 Christian Graus 10-Feb-09 12:43  This sounds like a disaster. You can iterate over the controls collection and find the control with a given name, or you can create a Dictionary of names to control references. Christian Graus Driven to the arms of OSX by Vista. Re: How to use a string or char array to refer to a control Henry Minute10-Feb-09 12:49 Henry Minute 10-Feb-09 12:49  Where I think you are getting confused is the ToCharArray() method. This is a method of the string class, and what it does is to return the string calling it as an array of characters. I does not convert an image into an array. The fields currentImage and nextImage, that you are using are strings representing a name that you have assigned to an image. They do not point to the image in any way. Look up, either in MSDN or Google, 'List<t>' or 'ArrayList' and learn how to create a list of images, or better, since that would take up a lot of memory, a list of file names. Then use your imagePosition field to index into that list. Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” Re: How to use a string or char array to refer to a control t_feras10-Feb-09 13:13 t_feras 10-Feb-09 13:13  Thanks for the reply, The currentImage and nextImage are supposed to be strings that represent the name of the current image and next respectively. Maybe I should use something like currentImageIndx and nextImageIndx to be clear next time. Anyways, I am not trying to save or convert the images in any how. I just want to be able use the string or char_array value as the image name. Sorry for any confusion. Re: How to use a string or char array to refer to a control Henry Minute10-Feb-09 13:53 Henry Minute 10-Feb-09 13:53  I think that you are OK with just your existing index imagePosition. the thing is to use it to index into a list or array of some kind. You can still make the current and next names as you are doing, if you need to display those values somewhere, if not they are of no use. Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” Parsing at end of line with split function alwaysthinking10-Feb-09 10:18 alwaysthinking 10-Feb-09 10:18  Im using the split function to parse a text file. How do I detect the end of a line? I tried '\0' but it didnt work as chars cant be null. Re: Parsing at end of line with split function mav.northwind10-Feb-09 10:29 mav.northwind 10-Feb-09 10:29  How about Environment.NewLine? Regards, mav -- Black holes are the places where God divided by 0... Re: Parsing at end of line with split function Guffa10-Feb-09 10:37 Guffa 10-Feb-09 10:37  You can use Environment.Newline as mav suggested, or why not simply use File.ReadAllLines to read the file into an array of strings? Despite everything, the person most likely to be fooling you next is yourself. DataSet columns ziwez010-Feb-09 8:39 ziwez0 10-Feb-09 8:39  I have a class that returns a dataset, csServices GetDataServices = new csServices(); gvServices.DataSource = GetDataServices.ServicesDS; gvServices.DataMember = "tbl_Services"; all im doing is reading data, dont need to update etc.. Although my dataset (ServicesDS) returns 1 table and 6 columns, i dont need to show all the columns in my gridview(gvServices), how can I only show the columns I specifiy ie "ID", "Name"? Following on.. should I be ref to a dataset or datatable, pros, cons? thanks Re: DataSet columns Wendelius10-Feb-09 8:47 Wendelius 10-Feb-09 8:47  You're not telling which GridView you're using, web control, WPF etc? Anyway, most gridviews work in a way that if you don't add columns to it before you bind the data, all columns are added automatically. So you should create the necessary columns beforehand either in code or in designer. The need to optimize rises from a bad design.My articles[^] Re: DataSet columns ziwez010-Feb-09 8:54 ziwez0 10-Feb-09 8:54  win forms Re: DataSet columns Wendelius10-Feb-09 9:04 Wendelius 10-Feb-09 9:04  If you're using DataGridView, then you could use for example DataGridViewColumnCollection.Add Method [^] to add desired column to the DataGridView before you bind the data (or add the columns in designer). The need to optimize rises from a bad design.My articles[^] Re: DataSet columns Mycroft Holmes10-Feb-09 13:28 Mycroft Holmes 10-Feb-09 13:28  I use 2 methods limit the columns selected from the database, this gets rid of useless columns set the column. visible = false - this hides the columns that are required but do not need to be seen by the user (id column) You can still access the data in a non visible column Never underestimate the power of human stupidity RAH Get "Input string was not in a correct format" exception when calling OdbcConnection's getSchema("Columns") for Oracle 9i database stilz10-Feb-09 8:11 stilz 10-Feb-09 8:11  Hello, I'm trying to retrieve the columns from an Oracle 9i database using OdbcConnection class's getSchema method. While I can retrieve the tables and views just fine with getSchema("tables"), everytime I call getSchema("columns") I get a System.FormatException with message "Input string was not in a correct format". I've tried various combinations of the schema string, such as "Columns", "COLUMNS", etc. Thanks in advance. Reference: http://msdn.microsoft.com/en-us/library/cc668760.aspx[^] Re: Get "Input string was not in a correct format" exception when calling OdbcConnection's getSchema("Columns") for Oracle 9i database Wendelius10-Feb-09 8:26 Wendelius 10-Feb-09 8:26  The GetSchema functionality depends on the ODBC driver. Are you using Microsoft's Oracle ODBC driver and if not, could you test GetSchema using that driver? The need to optimize rises from a bad design.My articles[^] Re: Get "Input string was not in a correct format" exception when calling OdbcConnection's getSchema("Columns") for Oracle 9i database stilz10-Feb-09 8:53 stilz 10-Feb-09 8:53  I was unable to configure Microsoft's ODBC Oracle driver successfully with the database, so I'm using Oracle's 9i driver. Thanks for the reply. Re: Get "Input string was not in a correct format" exception when calling OdbcConnection's getSchema("Columns") for Oracle 9i database Wendelius10-Feb-09 9:06 Wendelius 10-Feb-09 9:06  Ok, I'm not sure if it is able to retrieve columns collection. You could try to override the query to obtain column information. See: http://msdn.microsoft.com/en-us/library/dd283134.aspx[^] The need to optimize rises from a bad design.My articles[^] Re: Get "Input string was not in a correct format" exception when calling OdbcConnection's getSchema("Columns") for Oracle 9i database stilz11-Feb-09 10:06 stilz 11-Feb-09 10:06  Mika, Thanks for your suggestion about the driver; getSchema("columns") works fine with the Oracle database after I configure the connection using Microsoft's Oracle driver instead of Oracle's 9i driver. There is one concern, though--will the future versions of Oracle database continue to work with Microsoft's driver? Lastly, I'm still curious as to why getSchema("Tables") works with Oracle's driver but not getSchema("Columns"). Thanks.

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