Re: DrWatson Error in Event Log - MultiByteToWideChar - Visual Basic Discussion Boards

Brian_Murphy20-Jul-05 4:43

20-Jul-05 4:43

Hi,

I have an input form with quite a few textboxes. When I tab to one of these textboxes I want it to highlight the complete data and not just put the cursor at the end of the data. This means that the user can overtype the data instead of deleting and then typing.

Any help appreciated

Re: Textbox enter behaviour

Anonymous20-Jul-05 4:52

Anonymous

20-Jul-05 4:52

Give this a try:

To handle one text box:

<br />
Private Sub TextBox1_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.Enter<br />
'select all text in the text box<br />
TextBox1.SelectAll()<br />
End Sub<br />

To handle multiple text boxes:

<br />
Private Sub TextBox1_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.Enter, TextBox2.Enter, TextBox3.Enter<br />
Ctype(sender,TextBox).SelectAll()<br />
End Sub<br />

Note: Text is selected when the user tabs into the Textbox

Re: Textbox enter behaviour

Brian_Murphy20-Jul-05 5:02

Brian_Murphy

20-Jul-05 5:02

Cheers

Worked a treat !!
Wink | ;)

DrWatson Error in Event Log - MultiByteToWideChar

ViralParikh20-Jul-05 4:33

ViralParikh

20-Jul-05 4:33

--------------------------------------------------------------------------------

Hi,
We have VB6 application up and running having SQL 2k as database. It has about 50 and more user using at pick hrs.

Now the problem is, sometime, few user got error message and kicked off from the application. I analyze windows eventlog and found that type of error is DrWatson and some exception thrown for multibytetowidchar kind of.

I really don't have any idea what happening here. If anybody have any little idea abt this I can give descriptive and exact explaination to them and will discuss further.

Thanks
Viral

Re: DrWatson Error in Event Log - MultiByteToWideChar

Dave Kreskowiak20-Jul-05 12:31

Dave Kreskowiak

20-Jul-05 12:31

Without the EXACT error message, it's not even possible to do a meaning ful search on it. Since we have no idea what your code is even doing at the time of the problem and MultiByteToWideChar is part of the Win32 and is used inside all VB6 apps extensively, this could be, literally, caused by anything in your app.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: DrWatson Error in Event Log - MultiByteToWideChar

ViralParikh21-Jul-05 8:20

ViralParikh

21-Jul-05 8:20

Error message on User's screen
"Child.exe has generted erros and will be closed by Windows. You will need to restart the program. An error log is being create."

Error message in error log - error log retrive form event viewer of administrative tool.
Type – Information
Source – DrWatson
Description - The application, , generated an application error The error occurred on 07/19/2005 @ 08:20:47.979 The exception generated was c0000005 at address 7C5B89AE (MultiByteToWideChar)

Can you help me out with this information.
If you want something more / else... write me up.

I am trying to find out the pattern of the error.
Let hope for the best.

Re: DrWatson Error in Event Log - MultiByteToWideChar

Dave Kreskowiak21-Jul-05 10:05

Dave Kreskowiak

21-Jul-05 10:05

There's just not enough information to pin this down, but, it could be caused by a badly formed SQL statement. If your code is using string concatenation to build SQL queries, like

Dim mySQLStatement As String
mySQLStatement = "SELECT * FROM sometable WHERE field1=" & somevariable & " AND field2 Like '" & something & "'"

you'll problably have problems that you can't trace down.

You might also try upgrading the MDAC to the latest version.

This is one of those problems that is very generic in nature and is not going to be solved easily. If you don't have to source code for the app, you're pretty much out of luck.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: DrWatson Error in Event Log - MultiByteToWideChar

ViralParikh26-Jul-05 6:01

ViralParikh

26-Jul-05 6:01

We got the source code at last...
Now what would be your approach to trace down this proble.
What you suggest to eliminate this error?
Just let you know, that this problem is not consistant and pops up in few forms till now. After kicking out from the application, user do the same thing again, it will work fine.

Viral

Re: DrWatson Error in Event Log - MultiByteToWideChar

Dave Kreskowiak26-Jul-05 10:07

Dave Kreskowiak

26-Jul-05 10:07

ViralParikh wrote:
Now what would be your approach to trace down this proble.

Put in instrumentation code to log what is going on by follow what functions are being called with what parameters, what return values are coming back from functions, and sql queries.

I didn't say this would be easy...

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Setting the Datagrid Row Backcolor for Selected rows

prathiba_naresh20-Jul-05 4:20

prathiba_naresh

20-Jul-05 4:20

Hi All,

I have a requirement for shading the backcolor of certain rows of the Datagrid.

Lets assume my table has 4 rows in it. I want to display the alternate rows in different colours and if two consecutive rows is grouped for some reason they need to show the same color. (Can't Use Datagrid's Alternatebackcolor and backcolor).

Case 1

Row 1 & 3 backcolor as Pale green
Row 2 & 4 backcolor as Dark green ( Easy with the above said properties)

Case 2

Row 1 backcolor as Pale green
Rows 2 & 3 backcolor as Dark green
Row 4 backcolor as Pale green

Tried loads of samples but can't achieve these 2 cases with any of them.

can someone help ?

Thanks

Re: Setting the Datagrid Row Backcolor for Selected rows

thealca20-Jul-05 13:47

thealca

20-Jul-05 13:47

there is no way that u can do it in DataGrid as far as i know. . . u can try MS FlexGrid

Re: Setting the Datagrid Row Backcolor for Selected rows

progload20-Jul-05 16:54

progload

20-Jul-05 16:54

enumrate the cells in the whole row and color the cells as you go:

http://www.syncfusion.com/faq/winforms/search/745.asp[^]

hope this helps.

Re: Setting the Datagrid Row Backcolor for Selected rows

prathiba_naresh20-Jul-05 22:22

prathiba_naresh

20-Jul-05 22:22

I Tried this sample yesterday and this doesn't solve my first case wherein i have to display alternate colors for each layer.

Anyway thanks for your help.

Connecting to AS400 from VB.Net

moramagwede20-Jul-05 3:34

moramagwede

20-Jul-05 3:34

I am trying to figure out a way to connect to the AS400 from vb.net. how do i go about doing it?
I need a detailed explanation because i haven't done this before.
please help.
Unsure | :~

Re: Connecting to AS400 from VB.Net

Dave Kreskowiak20-Jul-05 3:41

Dave Kreskowiak

20-Jul-05 3:41

You don't connecto to the machine, you connect to a server running on it. What are you trying to connect to?

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: Connecting to AS400 from VB.Net

moramagwede20-Jul-05 3:59

moramagwede

20-Jul-05 3:59

Thank you for responding,

Im supposed to try and connect to a file thats on the AS400, to see if i can connect to it. i'm very new at this and this is my first actual attempt.

i'm supposed to be able to view the contents of the file.
what do i need to be able to do this? Confused | :confused:

Re: Connecting to AS400 from VB.Net

progload20-Jul-05 6:02

progload

20-Jul-05 6:02

"I need a detailed explanation"

Here is a very good place to start learning it, download the PDF file.

http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/sg245183.html[^]

Hope this helps

progload

Re: Connecting to AS400 from VB.Net

moramagwede21-Jul-05 0:11

moramagwede

21-Jul-05 0:11

Thanks for the reply progload,

My problem is nobody seems to know how this works here.
i have been asked to test the connection to the AS400 using vb.net
i have the server ip address, i have the user id and password to log into the as400. what or rather how would i test the connection then.
is it possible for a detailed explanation.
i need to display the file contents from a specified library into a data grid, tell me or give me an example. Confused | :confused:

thanx in advance.

File/Folder Operations: Looking for ideas.

Brad Fackrell20-Jul-05 3:23

Brad Fackrell

20-Jul-05 3:23

I’m building an application that is used to manage project data such as CAD files, images, etc.

At the beginning of a project, a ‘rough’ directory structure that holds project information is created. This structure changes throughout the process of working on the project. The changes include: File/Folder renaming, deletion, adding and moving.

I’m trying to think of a user friendly interface where these file/folder operations can take place. I’m thinking of something similar to a Windows Explorer type window but with the ability to move folders up and down the tree. Or, even better, drag a folder to another location.

Has anybody ever seen any examples similar to this? Any ideas or suggestions??

Thanks
Brad

Re: File/Folder Operations: Looking for ideas.

Anonymous20-Jul-05 3:57

Anonymous

20-Jul-05 3:57

Give these a try:

http://www.codeproject.com/vb/net/VbNetExpTree.asp[^]
http://www.thecodeproject.com/vb/net/DragDropPersistingTreeV.asp[^]
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/html/vbtskstartingdragoperations.asp[^]

Re: File/Folder Operations: Looking for ideas.

Brad Fackrell20-Jul-05 4:23

Brad Fackrell

20-Jul-05 4:23

Anonymous wrote:
http://www.codeproject.com/vb/net/VbNetExpTree.asp[^]

...Very nice.

Anonymous wrote:
http://www.thecodeproject.com/vb/net/DragDropPersistingTreeV.asp[^]

...Perfect! (When combined with the first article.)

Thanks

add Summary or Description

waleedEad20-Jul-05 0:59

waleedEad

20-Jul-05 0:59

I Have Classes in VB.NET ,I Want to Summary description for My classes to Enable User of it To Ease of Use
Note: I See that in C# But I can't do it in VB.NET

Re: add Summary or Description

Dave Kreskowiak20-Jul-05 2:39

Dave Kreskowiak

20-Jul-05 2:39

This isn't supported in Visual Studio .NET 2002 or 2003 with using a 3rd party plug-in, like VBCommentor[^]. Though in 2005, this is fully supported.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

scanned image

royrana19-Jul-05 21:55

royrana

19-Jul-05 21:55

I have a scanned answer sheet which has 5 circles in it corresponding to the answers.2 circles are made black using 2b pencils. Whenever i want to read the value of the marked circles it is giving different values. But using a bmp or gif with system color i m getting the value 0 whenever black color is used.
Pls help me to code the scanned image.
Pls mail me if anything is unclear.

foImage Capture VB 6.0 to Oracle and Read the point clicked on the image in VB 6.0

soft_Brains19-Jul-05 21:12

soft_Brains

19-Jul-05 21:12

Hi
I would like to know how to capture an image in vb then store it to the database oracle and then.

Example : Capture a image then the user will click on particular area of the picture i.e some pixel point here i should read the particular area/pixel point and store that area as predefined disease in the database if he cliks on some other area/pixelpoint then store it as someother disease or problem into the oracle database.

Pls can anyone help me.

Regards

Lion Heart
Software Engineer
Bangalore

Last Visit: 31-Dec-99 18:00 Last Update: 3-Jul-24 22:00

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