C# Discussion Boards - CodeProject

How to Convert Geomedia format into shape file?

pkd_198024-Jul-06 19:16

pkd_1980

24-Jul-06 19:16

Are there any free utilities for converting Intergraph GeoMedia Access warehouse(.mdb)to other formats, especially to ESRI shapefile format or Foxpro tables format? D'Oh! | :doh:

Thanks in advance

Pankaj Dubey

Regarding Textbox, Treeview and ListBox properties

aruna_koride24-Jul-06 16:56

aruna_koride

24-Jul-06 16:56

Hi all

I am developing instant message application, I need to select a node from treeview and enter the text in the textbox,click Send button to append the text to another ListBox.

I have problems in following:
1.When I select a node and enter the text in the textbox,the node is unselected immediately, I wanted to keep node highlighted.

2.When I enter the text and hit enter, I wanted to do same function as Send
button, instead the cursor is going to next line on hitting enter key.

Please help me , I tried changing all the events/properties but didn't work.

Aruna

Re: Regarding Textbox, Treeview and ListBox properties

Andrew Lygin24-Jul-06 19:13

Andrew Lygin

24-Jul-06 19:13

Hi, Aruna.
1. treeview.HideSelection = false.
2. You can a) set form.AcceptButton = btnSend if your form is a dialog or you can b) handle KeyDown event of the textbox:

private void textbox_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyData == Keys.Enter)
    {
        // Handle Enter here.
    }
}

Re: Regarding Textbox, Treeview and ListBox properties

aruna_koride24-Jul-06 20:50

aruna_koride

24-Jul-06 20:50

Thanks a lot Andrew!
My problem solved with your help.

How to wrapper a MFC Dll , please help!!!

dfbx24-Jul-06 16:50

dfbx

24-Jul-06 16:50

i have a MFC dll from a video capturer SDK which i want to use in C#.

it was defined in MFC function with a class named AVEControl.

i have not the source code of the Dll but only the head file as below.

if i use [DllImport] directly, an runtime exception is shown with the message "can not found the entrypoint in *.dll".

i guess it was because all function is in the class so i can not call it directly.

so i want to know how to wrapper it with VC++.net or otherwise.

<here is="" the="" head="" file="" of="" dll="">

!!!please notice the DEFINE of CLASS!!!

// AVEControl.h: interface for the AVEControl class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_AVECONTROL_H__4E171B4B_A11B_49F1_B41C_5F4A31B5CF08__INCLUDED_)
#define AFX_AVECONTROL_H__4E171B4B_A11B_49F1_B41C_5F4A31B5CF08__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#ifdef DEVICECONTROL_EXPORTS
#define DEVICECONTROL_API __declspec(dllexport)
#else
#define DEVICECONTROL_API __declspec(dllimport)
#endif

typedef HRESULT (*AVECALLBACK) (PBYTE pbData, LONG lDataLength);

#define E_DEVICE_NOT_READY 0xB0004001L

class DEVICECONTROL_API AVEControl
{
public:
HRESULT StartRecordWithoutPreview(HWND hWndCap, CString FileName, __int64 pFileLength, UINT pFileMessage, BOOL pShowSetting = TRUE);
HRESULT StartRecordWithPreview(HWND hWndCap, RECT rc, CString FileName, __int64 pFileLength, UINT pFileMessage, BOOL pShowSetting = TRUE);
HRESULT StartPreview(HWND hWndCap, RECT rc);
HRESULT SetVideoClippingWindow(HWND hwnd);
HRESULT SetCallback(AVECALLBACK Callback);
HRESULT GetVideoStatus(PUCHAR pSta);
HRESULT SetVideoPosition(LPRECT lpSRCRect, LPRECT lpDSTRect);
void GetCurrentImage(CString BmpFileFullName);
BOOL IsGraphRunning(void);
HRESULT StopGraph(void);
HRESULT ApplySettings(CString IniFileFullName);
HRESULT SetVideoProcAmp(long Property, long Value);
HRESULT GetVideoProcAmp(long Property, long* Value);
HRESULT GetEvent(long* EventCode, LONG_PTR* Param1, LONG_PTR* Param2, long msTimeout);
HRESULT SetNotifyWindow(OAHWND hwnd, long lMsg, LONG_PTR lInstanceData);
HRESULT InitDeviceControl(void);
AVEControl();
virtual ~AVEControl();

};

#endif // !defined(AFX_AVECONTROL_H__4E171B4B_A11B_49F1_B41C_5F4A31B5CF08__INCLUDED_)

Re: How to wrapper a MFC Dll , please help!!! [modified]

Ista25-Jul-06 3:15

Ista

25-Jul-06 3:15

Use PInvoke instead.

If it were a class it would have utilized the ATL helper methods and an entry point would have been found.

Nick

-- modified at 9:15 Tuesday 25th July, 2006

Unexplained error when databinding

nurul aida24-Jul-06 15:43

nurul aida

24-Jul-06 15:43

hi,
i need help regarding on this matter.
i'm facing this error and do not know how to fix it. Cry | :((

fyi, im a beginner in .net.
i'm using datatable as a datasource of my datagrid.
the SQL used to get the data from the database begin with:

SELECT SubName, COUNT(*) AS Total FROM tblOneOnOne WHERE creator='"+User.Identity.Name+"'GROUP BY SubWWID, SubName ORDER BY total DESC

my error is as follows:
----------------------------------------------------
Server Error in '/nco6Peoplemap_dev' Application.

DataBinder.Eval: 'System.Data.DataRowView' does not contain a property with the name ID.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: DataBinder.Eval: 'System.Data.DataRowView' does not contain a property with the name ID.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): DataBinder.Eval: 'System.Data.DataRowView' does not contain a property with the name ID.]
System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName) +147
System.Web.UI.WebControls.DataGrid.CreateControlHierarchy(Boolean useDataSource) +1317
System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) +49
System.Web.UI.WebControls.BaseDataList.DataBind() +23
NCO6Peoplemap.OneOnOne_report.BindSubordinateName() in c:\nco6peoplemap\oneonone_report.aspx.cs:142
NCO6Peoplemap.OneOnOne_report.CheckAccess(String sIDSID) in c:\nco6peoplemap\oneonone_report.aspx.cs:76
NCO6Peoplemap.OneOnOne_report.Page_Load(Object sender, EventArgs e) in c:\nco6peoplemap\oneonone_report.aspx.cs:53
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +772

Version Information: Microsoft .NET Framework Version:1.1.4322.2300; ASP.NET Version:1.1.4322.2300 -----------------------------------------------------------------------------

really hope that someone can help me on this.

Thanks so much!

Re: Unexplained error when databinding

Ed.Poore24-Jul-06 21:52

Ed.Poore

24-Jul-06 21:52

nurul aida wrote:
DataBinder.Eval: 'System.Data.DataRowView' does not contain a property with the name ID.]

First instance of error

nurul aida wrote:
DataBinder.Eval: 'System.Data.DataRowView' does not contain a property with the name ID.

Second time it appears

nurul aida wrote:
'System.Data.DataRowView' does not contain a property with the name ID.

Third time it appears

If you need any more explanation try checking your column names to make sure that they match up.

Formula 1 - Short for "F1 Racing" - named after the standard "help" key in Windows, it's a sport where participants desperately search through software help files trying to find actual documentation. It's tedious and somewhat cruel, most matches ending in a draw as no participant is able to find anything helpful. - Shog⁹

Ed

Re: Unexplained error when databinding

nurul aida24-Jul-06 23:26

nurul aida

24-Jul-06 23:26

i did check and all my column name, it did match up.
any clue?

Re: Unexplained error when databinding

Ed.Poore25-Jul-06 0:25

Ed.Poore

25-Jul-06 0:25

nurul aida wrote:
any clue?

Nope

The exception quite clearly states that it can't find the ID column in the DataRowView so that's where you'll have to look.

Re: Unexplained error when databinding

nurul aida25-Jul-06 20:30

nurul aida

25-Jul-06 20:30

Ed, thanks for the help.
it is actually one column didn't match... Blush | :O

thanks!

richtextbox : can I display a normal string as a URL

micko197424-Jul-06 12:46

micko1974

24-Jul-06 12:46

Hi,
I'm wrinting a windows application in C# and want to build a 'breadcrumbs' section to show the user where they are in the application.

In keeping with the webstyle of breadcrumbs most users are familiar with I want my breadcrumbs to display as hyperlinks.

I tried using a group of linklabels (on for each level) but I have trouble with this when one of the level names is so long that it overwrites part or all of the next label... so I thought I'd use a richtextbox.

I declared a couple of strings to handle the rtf syntax:

<br />
string rtfStart = "{\\rtf1\\ansi\\ansicpg1252\\deff0\\deflang1033{\\fonttbl{\\f0\\fnil\\fcharset0 Verdana;}}\r\n\\viewkind4\\uc1\\pard\\f0\\fs18 ";<br />
string rtfEnd = "/\\par\r\n}\r\n";

then added my level names inbetween:

<br />
            string test = rtfStart + root + Separator + deck + rtfEnd;<br />
            richTextBoxBreadCrumbs.Rtf = test;<br />

However this just displays my level names without URL style formatting.

So my question is, can you force a richtextbox to display a string which is not a URL as a URL and if so, what am I doing wrong?

If this can't be done and I have to resort to using a linklabel, is there any way to deduce which part of a link label has been clicked if I just build my breadcrumbs as one long linklabel?

Too hot and tired, Newbury, UK

Re: richtextbox : can I display a normal string as a URL

mav.northwind24-Jul-06 20:09

mav.northwind

24-Jul-06 20:09

Hi!
You might want to take a look at this article[^]

Regards,
mav

--
Black holes are the places where god divided by 0...

Re: richtextbox : can I display a normal string as a URL

micko197425-Jul-06 2:32

micko1974

25-Jul-06 2:32

Mav,
I think that's just what I'm looking for. Thanks!
Mike

is there a way to check if the current input language uses latin letters?

xkx3224-Jul-06 11:55

xkx32

24-Jul-06 11:55

hi

can you please tell me if there's a way to check the current InputLanguage if it's considered a latin language?

thank you

Re: is there a way to check if the current input language uses latin letters? [modified]

engsrini24-Jul-06 20:18

engsrini

24-Jul-06 20:18

use System.Globalization; namesapce<br />
and check <br />
<br />
if(CultureInfo.CurrentCulture.DisplayName=="Latin") //Note Check the exact name of Language it would not be "Latin" in your system<br />
<br />
to get currently istalled cultures name use CultureInfo.InstalledUICulture.DisplayName

-- modified at 2:18 Tuesday 25th July, 2006

Re: is there a way to check if the current input language uses latin letters?

lmoelleb24-Jul-06 22:10

lmoelleb

24-Jul-06 22:10

I do not think there is a direct way. You can go though the CultureInfo's TextInfo property and get the code page (ANSI, OEM or whatever you like) and try to base it on this. It would probably narrow it down to a few codepages you should "include", but to be honest I am afraid you might as well create a manual list and check the major language name. It should not take toooo long. Smile | :)

Cloning rows in a dataset/datatable.

PyroManiak24-Jul-06 11:13

PyroManiak

24-Jul-06 11:13

I'm literally trying to clone data rows, nothing very complicated, infact, they aren't even going to be changed during this section of the project.

I've captured the rows I want to clone using a custom SQL query, but I'm not sure how to insert them back into the database with new ID's(primary key is autonumber)...

can't I just run a .update of some sort?

I've tried copying the data table from results of my query and merging into the complete table, that doesn't make any change.
I dont seem to be able to .insert anything other then independant values for each column.

I'm using VS 2005 and C#.

Thanks.

Type Checking with a attribute

Ista24-Jul-06 11:07

Ista

24-Jul-06 11:07

I want to add an attribute

[TypeChecker()]
public class MyClass {}

That will format all serializable properties to a date format of "yyyy/mm/dd"

Is that possible with an attribute?

I know it can be accomplished with AOP, but thats bulky and I would like to avoid that.

Thanks,
Nick

1 line of code equals many bugs. So don't write any!!

Yes its possible

Ennis Ray Lynch, Jr.24-Jul-06 11:21

Ennis Ray Lynch, Jr.

24-Jul-06 11:21

But you may have to write your own serializer to acheive it ( idk?) also you would most likely want your attribute on the property level.

One workaround is to mark your date property as not serializable and create a seperate string property that returns the string formated the way you want it.

A man said to the universe:
"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."

-- Stephen Crane

Re: Yes its possible

Ista25-Jul-06 3:12

Ista

25-Jul-06 3:12

Ennis Ray Lynch, Jr. wrote:
One workaround is to mark your date property as not serializable and create a seperate string property that returns the string formated the way you want it.

Well not actually. Since it will be evaluating at class level it should stay there. Plus, it puts a lot of responsibility on the developer to remember to include the attribute on each method.

Ennis Ray Lynch, Jr. wrote:
But you may have to write your own serializer to acheive it ( idk?) also you would most likely want your attribute on the property level.

And actually since an attibute is added at runtime I can just have my attibute extend the ISerlializable and iterate through each property. Formatting the date fields as they are encountered.

Thanks for your efforts to help,
Nick

1 line of code equals many bugs. So don't write any!!

.net remoting Object oriented programming.

Sanjay Khan G24-Jul-06 10:29

Sanjay Khan G

24-Jul-06 10:29

I was trying to implement .net remoting in my project as
object oriented programming. Means, I get success to create
server process as SAO/CAO but in my client application after geting server remoted object, I was trying to pass a object in method of server remoted object, whitch was created on client side .
But I could'nt succes.
If you need my project to solve my problem , then send me email on EMAIL ID : sanjaykhang@yahoo.co.in

Re: .net remoting Object oriented programming.

Ista24-Jul-06 10:56

Ista

24-Jul-06 10:56

more than likely its not serializable. But know one can answer with that little amount of information

1 line of code equals many bugs. So don't write any!!

.net remoting Object oriented programming.

Sanjay Khan G24-Jul-06 10:27

Sanjay Khan G

24-Jul-06 10:27

I was trying to implement .net remoting in my project as
object oriented programming. Means, I get success to create
server process as SAO/CAO but in my client application after geting server remoted object, I was trying to pass in method of server remoted object, whitch was created on client side .
But I could'nt succes.
If you need my project to solve my problem , then send me email on EMAIL ID : sanjaykhang@yahoo.co.in

RichTextBox Selection color problem

Radu Sorin24-Jul-06 10:17

Radu Sorin

24-Jul-06 10:17

As short as i can explain... I have a RichTextBox that i want to use for syntax highlighting. For coloring i use:
richControl.Select(...);
richControl.SelectionColor= ...;
and it works . The text is highlighted using a list of keywords. Lets say that I have te following line in my textbox:

I like icecream

In this line "like" is a keyword and its color is red(for explanation sake) and all the other words are black. THE PROBLEM is that if I move the caret just after the word "like" and I start typing, the new inputed characters will also be red,and i wanted them to be black. How can i escape this problem?

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