.NET (Core and Framework)

18-Aug-09 2:08

Take a look at the documentation for PathGradientBrush class and its SurroundColors property.

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: About Graphics

Luc Pattyn18-Aug-09 2:19

crystall reports in visual studio 2008

18-Aug-09 2:19

Hi,

Here[^] is an example using PathGradientBrush.

Smile | :)

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220817-Aug-09 18:40

2208

17-Aug-09 18:40

i have crystall reports which are developed with version 10

these reports are visible in visual studio 2005 but not visible in visual studio 2008 and gives error to create control

is there any solution plz help me

thanks

Crystal Report Report Tille

chushia17-Aug-09 10:54

chushia

17-Aug-09 10:54

Crystal report Tile, can it be changed in the same report? For example, after the first two pages the title will change to something different ... this goes on ... after a few pages, the title changes again to a different one.

how to create file downloding method in ASP.NET

simran123456 217-Aug-09 2:00

simran123456 2

17-Aug-09 2:00

hi Actually i want to ceate a file downloding method in ASP.NET also i want to know fileuploading method........ in ASP. NET?

so send me ....how to create this in asp.net 2.0?????

Re: how to create file downloding method in ASP.NET

Adam R Harris17-Aug-09 11:36

Adam R Harris

17-Aug-09 11:36

How about I "send you" to the right message board ....

ASP.NET Messageboards[^]

If at first you don't succeed ... post it on The Code Project and Pray.

IEquality Comparer distinct datatable rows

vidhyaravichandar17-Aug-09 0:58

vidhyaravichandar

17-Aug-09 0:58

Hi,

my datatable contains the following columns...
resultsView.Columns.Add("Fam.", typeof(string));
resultsView.Columns.Add("Component", typeof(int));
resultsView.Columns.Add("Description", typeof(string));
resultsView.Columns.Add("Quantity", typeof(double));
resultsView.Columns.Add("Unit", typeof(string));
resultsView.Columns.Add("Unit Price", typeof(double));
resultsView.Columns.Add("Total", typeof(double));

i have a datatable,
I use IEqualityComparer to get distinct rows.
Im able to get the distinct rows...
What my problem is If i find same rows, i need to increase a columnValue in this datatable.

I mean i have column named "component" in my datatable, so if two rows are same, then i need to get one row with component value increased by 1 using IEqualitycomparer. What i get now is only one row with component column value not increased...

cud anyone plz help me to solve this problem??

Henry Minute17-Aug-09 1:10

17-Aug-09 1:10

It is difficult to help you without seeing the code you are using.

Please post your code. If you do so then please put the code between <pre>your code here</pre> tags to maintain the formatting and make it readable.

vidhyaravichandar17-Aug-09 1:19

vidhyaravichandar

17-Aug-09 1:19

thanks for ur reply,

here is my code....

my datatable(named as sortedDataTable) has columns as in my previous message... and i use iequalitycomparer as below

IEnumerable&lt;DataRow&gt; drdistinct = sortedDataTable.AsEnumerable().Distinct(new MyDataRowComparer());

in my iequalitycomparer class i have these codes...

<pre>
class MyDataRowComparer : IEqualityComparer<DataRow>
{
public MyDataRowComparer()
{
}

public bool Equals(DataRow x, DataRow y)
{
if (x.Field<string>("Fam.") == y.Field<string>("Fam.") && x.Field<string>("Description") == y.Field<string>("Description"))
{
x["Component"] = Convert.ToInt16(x["Component"]) + 1;
x["Quantity"] = Convert.ToDouble(x["Quantity"]) + Convert.ToDouble(y["Quantity"]);
//y.Delete();
return true;
}
else
return false;
}

public int GetHashCode(DataRow obj)
{
int a = obj.Field<string>("Fam.").GetHashCode();
int b = obj.Field<string>("Description").GetHashCode();

// obj["Component"] = Convert.ToInt16(obj["Component"]) + 1;
//x["Quantity"] = Convert.ToDouble(x["Quantity"]) + Convert.ToDouble(y["Quantity"]);
return a + b;
} </pre>

these code, works fine and it returns me only the distinct rows, but this gethashcode method adds the first row and then compares it with subsequent rows, so if i apend column values in equals method as in above, it doesnt affect the datatable as it adds the row in the begining itself..

Henry Minute17-Aug-09 1:52

17-Aug-09 1:52

It seems to me that your problem would be better solved by a properly constructed Stored Procedure in your database.

I am not particularly good at SQL so if this idea appeals, you might get a better solution in the General Database Forum.
However, something like:

SELECT
  Fam., Description, etc.,
  SUM(Component) AS "Component Total",
  SUM(Quantity) AS "Quantity Total"
FROM
  your_table
GROUP BY
  Fam., Description

vidhyaravichandar17-Aug-09 15:21

vidhyaravichandar

17-Aug-09 15:21

Hi,

im not using database. I have one datatable which has all rows (duplicate rows)... I want to create another datatable which contains distinct rows and while getting the distinct rows, i have to add "component" column value.

Henry Minute18-Aug-09 0:22

18-Aug-09 0:22

The same principle applies. It will be far easier to do on the original data than from a datatable. So if you are not using a database, how are you filling the datatable? What is your data source if not a database?

Dot Net Installer

Ageesh17-Aug-09 0:44

Ageesh

17-Aug-09 0:44

hi...
am using vb.net + sql 20000, now i have to install sql server then create the database and install t application, by following these process only i would be able to run t application. i wanna know will i be able to use my application with out installing sqlserver (ie by using msde can i create db) and how to create an installation package for the above

Re: Dot Net Installer

Adam R Harris17-Aug-09 11:44

Adam R Harris

17-Aug-09 11:44

Ageesh wrote:
am using vb.net + sql 20000

Well first of all, try using a database engine that isn't from the future .... lol

Ok all jokes aside,

You are going to have to use a custom action during the installation to determine if the database exists or if you should create it.
This should get you started A Custom Action for Deploying a Visual Studio 2005 Add-in[^]

As far as installing without SQL Server, thats fine but your application has to account for the lack of a SQL Server.

Normally there should be a SQL Server on the network that you can connect to, you would have to get that information from the user either during installation or the first time the app is run.
MSDN Context Properties[^]

If at first you don't succeed ... post it on The Code Project and Pray.

Importing Dll Problem

shaina223116-Aug-09 17:42

shaina2231

16-Aug-09 17:42

I m trying to import unmanage dll "pcrsrv32.dll" using following method in .NET project

DllImport("pcrsrv32.dll")> _
Function PCRSInitSrv(ByVal appName$, ByVal iniFile$) As Long
End Function

this dll is product of PC*Miler|Rail-connect not microsoft so its not successully imported becoz
on successfull PCRSInitSrv method should return 0 but in my project it return non zero value.
Plz help me is there some other method to use this dll

Adam Maras16-Aug-09 18:09

Adam Maras

16-Aug-09 18:09

Well, you're not getting a runtime exception, which means that you indeed are correctly importing the function. That being said, PCRSInitSrv returns a non-zero error code if it fails; you should use PCRSGetErrorString (another DLL-provided function) to figure out what the error is. This way, you might have a better chance of diagnosing your problem Smile | :)

Adam Maras | Software Developer
Microsoft Certified Professional Developer

Pete O'Hanlon16-Aug-09 22:48

Pete O'Hanlon

16-Aug-09 22:48

Do you not think this question would be better asked of the support team at www.alk.com? As they wrote the application, it seems likely that they will have specialist knowledge that will help.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Luc Pattyn17-Aug-09 0:16

17-Aug-09 0:16

Hi,

I haven't tested it, but this seems more appropriate:

DllImport("pcrsrv32.dll")> _
     Public Shared Function PCRSInitSrv(ByVal appName$ as String, ByVal iniFile$ as String) As Long
     End Function

You need both Public and Shared; and IMO you should provide type information on all parameters.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Show formatted code inside PRE tags, and give clear symptoms when describing a problem.

Adam Maras17-Aug-09 10:12

Adam Maras

17-Aug-09 10:12

I would have suggested the same, but the fact that the DLL's function is executing and returning a value (an HRESULT, to be exact) means P/Invoke is managing to bind the function correctly. Yeah, it's not the greatest practice, but it works...

Adam Maras | Software Developer
Microsoft Certified Professional Developer

Class Problem

JEFFERY!16-Aug-09 13:27

JEFFERY!

16-Aug-09 13:27

Hello!

I am writing a button generator application in where you type in a number within a text box and click the generate button in where it will randomly create buttons in different locations within the application.

I am also trying to make it so that an action is performed when i click these buttons, but i cant figure out how to do it. Here is my code so far.

FORM CODE:

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim newInstance As New myButton
    End Sub

End Class

BUTTON CODE:

Public Class myButton

    Public Sub New()
        Dim newButton As New Windows.Forms.Button
        Form1.Controls.Add(newButton)
    End Sub

    Friend WithEvents newButton As Windows.Forms.Button
    Public Sub mouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles newButton.Click
        MsgBox("hi")
    End Sub

End Class

As you can see from the code, it should show a message box when each instance of a button gets clicked, but its not working. I'm not sure if im doing this the right way or not, can someone please help me with this because i cannot find anything on the internet about it.

Thankyou.

Re: Class Problem

Luc Pattyn16-Aug-09 14:52

16-Aug-09 14:52

Hi,

in your code

[1] Public Class myButton

[2]     Public Sub New()
[3]         Dim newButton As New Windows.Forms.Button
[4]         Form1.Controls.Add(newButton)
[5]     End Sub

[6]     Friend WithEvents newButton As Windows.Forms.Button
[7]     Public Sub mouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles newButton.Click
[8]         MsgBox("hi")
[9]     End Sub

[10] End Class

Class myButton represents a button, i.e. ONE button, however I see two declarations: lines [3] and [6].
The "Handles newButton.Click" in [7] refers to the newButton in [6] which is and remains Nothing.
The New Button in [3] ends up in the local variable newButton, which you add to the Form, but which is unrelated to the one in [6].

The solution should be obvious.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.

Re: Class Problem

JEFFERY!16-Aug-09 15:01

JEFFERY!

16-Aug-09 15:01

Thanks for the help, i've got it working now!

Sorry if that seemed a stupid question Poke tongue | ;-P

Re: Class Problem

Luc Pattyn16-Aug-09 15:02