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p/invoke, or COM
Christian Graus
Driven to the arms of OSX by Vista.
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I am trying to implement paging in a datalist control but it seems so complicated anyways, i am using a stored procedure instead of a data list and the value is inputted from a querystring, but i just can't seem to find any example that implemented it my way. Anyone with any great walk through?
Ferron
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Hi,
I am creating a webpage that retrieves data from remote database and stores it in a dataset based on a sql query. Later this dataset is bound to a datagrid in the same page. This is working fine, for a single user. Problem is when multiple user are using the webpage, the dataset gets updated with all rows that are retrieved by other users. Hence the datagrid show what I searched for and also what other users are searching for. Can anyone help me solve this issue?
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You haven't provided any code. So I assume you have declared the DataSet as static. If yes, you need to change this.
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I have declared the dataset as Private in the Main Class.
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And what is the Main class? How do you persist the instance of the Main class from one request to the next? Does each user have their own instance of the class, or do you have a static reference to a single instance of that class?
Despite everything, the person most likely to be fooling you next is yourself.
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This is what I do...
public partial class myForm1 : System.Web.UI.Page
{
private Dataset ds;
protected void Page_Load(object sender, EventArgs e)
{
}
public void GetDataset
{
I populate the dataset here
}
}
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The data set is local for the request, so there is nothing in your code that suggests that a search by one user would affect a search by another user. Therefore the problem has to be in the part of the code that you haven't shown.
Despite everything, the person most likely to be fooling you next is yourself.
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Hi
How can I get serial number of HDD, i have used the reference System.Management other property can use but only name SerialNumber can not use. So please help me
Socheat
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thank for your information
Socheat
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Hi,
the article ABitSmart provided shows how WMI will help you.
Unless you are using Vista, it needs administrator rights there. 
Luc Pattyn [Forum Guidelines] [My Articles]
- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use the code block button (PRE tags) to preserve formatting when showing multi-line code snippets
modified on Friday, June 10, 2011 11:40 PM
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Please check what Luc has pointed out and also it behavior on Win2K. Take a look at the messages posted for the article.
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You do know that the hard disk serial number changes when it's reformatted, right?
"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
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I not mean like that, I mean get the HDD serial that has on the HDD.
Socheat
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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.”
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Ambient,that is unless my memory is going too!
Alan.
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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.”
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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
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Check this: http://www.morganskinner.com/Articles/StrongNameIdentityPermission
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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
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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,
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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.
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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.”
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