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Hi ...
- Import the System.Drawing.Bitmap
- Declare a new bitmap image: Dim pic As New Bitmap(filename)
- Now use the pic.getpixel(x,y) method to get the A,R,G,B numbers in the image ... x & y r the coordinates
for i = 0 to pic.width - 1
for j = 0 to pic.height - 2
c = pic.getpixel(x,y) 'c is a color
next
next
- You can declare and array of colors and increment its index for color repitition in the loop the divide the total color occurances by the total colors in the image
Hope It's useful ... And if u need anything else in this field don't hesitate to ask me 
Best Regards
3ala2 
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Dear all,
Pls tell me how to retrive OLE Object from msaccess.
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I have my project uploaded on an open ip. my project uses ajax and added reference in web.config. there is also other project in .net. these projects take my web. config as their web.config. and throws error that ajax.dll not found. i have to remove this http handler from web.config. but my ajax works.
plz help me to find the solution.
Thanks For ur help
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Hi,
I am using the following code in codebehind file for creating a saveAs dialog box in webApplication in VB.net.
Dim filename As String = Session("DateTimeStampZip")
Dim fullPath As String = Server.MapPath(ConfigurationSettings.AppSettings("ServerDownload")) & "\" & filename
Dim dataStream As FileStream = New FileStream(fullPath,System.IO.FileMode.Open)
Dim fileLength As Integer = System.Convert.ToInt32(dataStream.Length)
dataStream.Close()
dataStream = Nothing
Response.Clear()
Response.ContentType = "application/octet-stream"
Response.AppendHeader("Content-Disposition", "attachment; filename=" & filename)
Response.AppendHeader("Content-length", fileLength.ToString())
Response.WriteFile(fullPath)
Response.End
My problem is that when I run the above code, I am getting a saveAs DialogBox with (checkbox:Always ask before opening this type of file.) shown in disabled mode..
With disabled I mean, in non-editable mode i.e; I am not able to check or uncheck the box.
When i click on open button in the box, same box pops up second time with the checkbox in enabled mode. Now i am able to open the file.
I want this saveAs dialogBox with the checkbox in enabled mode when I run the code first time and not after I click on open button in the dialog box.
Can anyone workout a solution to my problem..
PLease its urgent...
or any other way to create the dialog box using code in c# or vb.net...
Vikram Mera
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Hello,
I am starting a new Asp.Net 2.0 web site.I am looking for a fixed width web site.
I notice that CNN is using a 875px fixed width web site and Yahoo a 950px width web site. And many other web sites are using widths higher then 800px.
My question is:
What do you think of moving to widths higher then the 750px...780px usually used taking the 800px screens in consideration.
Thanks,
Miguel
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That depends on your design. You can have a web page that wills the whole screen and looks good on any resolution (relative width's).
--------------------------------------------------------
My portfolio & development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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According to this[^] 16% are still using 800x600.
You have to consider what kind of users you will have and if it's likely that they have chosen a higher resolution. On a site like this, for example, it's likely that almost everyone has the knowledge to change the screen resolution. However, if everyone has the knowledge, some will still choose to use a lower resolution for various reasons, like dyslexia or poor eyesight.
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b { font-weight: normal; }
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Hi,
I have a hyperlink column named change bound to a datagrid. In the datagrid I have 5 rows and 5 columns. I have a row named logo in which i will dsplay the images from database in an order and when i click the change button corresponding to the first row, it should be directed to a new popup window in which i have to dislay the corresponding logo of the first row in an image window and when i click browse and upload a new logo from the db the new logo should be displayed in the image window of the popup menu. i have done upto file uploading in popup but i dont know how to retrieve the image from the database and upload another image to db. my question is if we have to retrieve the image from the database do we have to create a new connection in the new window where the popup is created or we have to connect from the parent window (in which the datagrid is displayed). Pls provide me with a solution.
Thanx
saravanan
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 hi to all
i am stored the picture in database like this images\logos\country\1.jpg
my question is how to retrieve the picture and display <asp:image id="PictureBox1" style="Z-INDEX: 107; LEFT: 280px; POSITION: absolute; TOP: 144px"
runat="server" Height="32px" Width="88px"></asp:image>
this control
regards
saravanan
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Hi there
first, it's
(images/logos/country/1.jpg) not (images\logos\country\1.jpg)
So u have 2 options
the first option is on Page_Load event use the following code
PictureBox1.ImageUrl= The path got from the database
OR use this in the aspx file ...
<asp:Image id="PictureBox1" style="Z-INDEX: 102; LEFT: 120px; POSITION: absolute; TOP: 128px" runat="server" Width="400px" Height="200px" ImageUrl='<#% getImagePath()#>'></asp:Image>
and in the code behind define:
public function getImagePath() As String
... any code to get the path of the image
Return (The image path got from the database)
End function
Hope it's helpful
Best Regards
3ala2
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I have been tinkering around with Web Deployment projects. Generally I like the contol they give you but the problem is when I have a Sub-Web in the Site I get...
It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
Any ideas?
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This is always embarrassing when I answer my own questions but...
The answer is to Check the box which says "Use IIS MetaBase..." This will get the build input from the local website instead of the file server. You use this when you have your project in your local IIS.
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This error can be caused by a virtual directory not being configured as an application in IIS.
Is your SquareFeetWS configured as a virtual directory? It looks like IIS by default would consider "webservices" to be a virtual directory and no SquareFeetWS. If you have a web.config file in SquareFeetWS directory that has the authentication mode set, try deleting that line.
With Regards
Satips
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I am working on an ASP.NET 2.0 project using visual studio 2005.
The problem I have is that everytime that I precompile the project and publish it, all the binaries get a new random filenames and the aspx files are updated accordingly. Even using the option "Use fixed naming and sigle page assemblies", it generates a single binary file for every aspx file, but it has some random digits at the end of it.
This is a problem if there are design changes in the already published previous version because I have to manually change the header of it.
Is there any way to force the publisher tool to generate binary files without this random naming?
Thanks a lot for your help
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Use a web Deployement project if you don't have nested webs. Also if you Publish Web vs. Copy Web you won't mind that the files are named when they are published. You just have to re-deploy the site when you change something but MSBuild will change the headers for you.
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Hi,
I've been trying to format some fields as Decimal numbers but not as currency. The other numeric formats work great (currency, scientific notation, etc.) and the "D" works fine with Dates. The "D" will not work for me on a numeric field though. I've tried both embedding in the DataBinder statement:
<%# DataBinder.Eval(Container, "DataItem.AmountPaid", "{0:D2}") %>
and as a DataFormatString:
DataFormatString="{0:D2}"
I've also tried the ItemDataBound event. No luck.
Any suggestions?
Will
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Are you just trying to display two decimal places? If so, use the F format specifier:
Decimal pi = new Decimal (Math.PI);<br />
Console.WriteLine ("{0:F2}", pi);
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Thanks! That's doing it for me. I ignored the "F" because description in the MSDN doc is pretty vague (fixed) . . . until you follow the chain to the "Standard Numeric Format Strings". I just didn't go far enough the first time. I also see there that the "D" only works with integral types as the other poster suggested. I'm not sure what type results from the DataBinder statement? Evidently it's not a String or Decimal. Thanks again.
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What is the data type of the field? The "D" specifier will only work with integral types.
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b { font-weight: normal; }
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I'm not sure what type results from the DataBinder statement? Evidently it's not a String or Decimal. But, I see what you mean now that I found "Standard Numeric Format Strings" item in the MSDN doc. I circumvented the issue by using the Fixed format instead. Some time when I'm not under the gun I'll have to follow up and figure this one out. Thanks.
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The DataBinder returns a value of the type Object, but the real type of the value depends on the data type of the source. If you for example have a int field in the data base, the object contains an Int32 value.
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b { font-weight: normal; }
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Hello There!
I have a usercontrol named A that displays data from a database. I create a dynamic number of usercontrols depending on the number of hits from the database given a certain critera. If I receive 4 datasets from the database I create 4 usercontrols and so on…
These Usercontrols contains repeater objects displaying the data aswell as a button that interact with the data. Im now experiencing some major problems to get these buttons to fire once pressed.
I do believe I have done it the right way.
Usercontrol A
1. Initialize
2. declare Click method
<br />
private void InitializeComponent()<br />
{<br />
this.OpenButton.Click += new System.EventHandler(this.Open_Click);<br />
this.Load += new System.EventHandler(this.Page_Load);<br />
}
protected void OpenButton_Click(object sender, System.EventArgs e)<br />
{<br />
}
It works perfect using static usercontrols, but not in this dynamic case. It wont even enter the OpenButton_click method in debug mode.
Is the EventHandler passing the event to the main app or what is happening.?!? Nothing what so ever happens..
Please help me Experts-Number-One, you are my only hope….
/Peter
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See,
Recall that the framework create the controls tree only for static controls - this is why the event of the dynamic controls could not reached there targets when the page is posted back - so this is your job, as i describe in a minute.
The problem is that the page controls tree is built before the page load - and events that should be fired target to controls resolved in that stage. Hence if your dynamic controls are not existed in this level - WITH THE SAME ID AS THEY HAD IN THE PREVIOUS POSTBACK - the events will not be fired.
So, a good solution will be:
1 - When you create the controls assigned them a unique id. Aparantly you will do it in the Page_Load, you should do it only if the page was not post bask. Dont forget to add you controls to the Controls Collection of their container. For example - if you add these controls directly on the form - Write: Page.Controls.Add(...your control here).
Page_load...
- if not post back
- Create the control
- Assigned the created control a unique id
- Add the created control to its container "Controls" collection.
2 - When you create these controls - put some information in the ViewState so you can rebuild these controls when the page will be posted-back:
- ViewState[some key]=information.
The information should be encoded in a way that can describe you in the next step what controls were existed before the post back.
3 - Override the TrackViewState method of the page and rebuild the dynamic part of your page using the information you saved in the ViewState. Again dont forget to add these dynamic created controls to your Controls collection.
That is all!
If the dynamic controls that you are creating are always the same (obviously they are not) you could be satisfied with the Page_Load part without checking the PostBack status.
Best regards,
e-laj
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