DataGridView BeginEdit - Visual Basic Discussion Boards

Re: Want to create layer like photoshop in vb.net

Dave Kreskowiak5-Mar-12 16:59

5-Mar-12 16:59

Oh, now I remember what it was. VB.NET finally gets Iterators and Yield support, but VB will support anonymous functions as an Iterator function, C# won't.

Also, Try blocks with Yields are also handled differently. C# will allow a yield return in the Try block, but only if there is no Catch block.

VB.NET will allow Yield in Try blocks with or without a Catch block. Kind of makes exception handling interesting.

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Dave Kreskowiak

Re: Want to create layer like photoshop in vb.net

Sergey Alexandrovich Kryukov5-Mar-12 18:38

Sergey Alexandrovich Kryukov

5-Mar-12 18:38

Interesting, thanks for a note.

I still feel like VB.NET goes behind, overall.

May be I'm wrong, but I feel you are overreacting about "history lesson", saying as if it's something bad. What's wrong with lessons? As you probably know this history better then I do (mainly because I never allowed myself to play with the idea of accepting the opportunity to work with VB), you can always tell us something more interesting and useful than I could. And correct me if I'm wrong. I've noticed a long time ago that reading your posts can be really useful; as that can give a chance to learn something, and I'm trying not to miss a lesson, even if I think I know things the best way — but I always can be mistaken, like probably all of us. Perhaps it's good to remember that if I reply to your post, it does not mean that I always address personally to you. Everyone can read our conversation.

Thank you for interesting discussion. Will talk to you later.

—SA

Sergey A Kryukov

Re: Want to create layer like photoshop in vb.net

Dave Kreskowiak6-Mar-12 5:42

Dave Kreskowiak

6-Mar-12 5:42

SAKryukov wrote:
I've noticed a long time ago that reading your posts can be really useful; as
that can give a chance to learn something, and I'm trying not to miss a lesson

Well thank you! I didn't know I had a follower! Wink | ;)

SAKryukov wrote:
May be I'm wrong, but I feel you are overreacting about "history lesson", saying
as if it's something bad.

You're right, I probably did. I have been a bit touchy lately and there's no real excuse for that.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Want to create layer like photoshop in vb.net

Sergey Alexandrovich Kryukov6-Mar-12 18:17

Sergey Alexandrovich Kryukov

6-Mar-12 18:17

I hope we are good. And we are doing basically the same thing on this site for this community. As to the criticism and possible negative estimates or votes, they are normal, absolutely unavoidable in any truly creative environment, as well as our mistakes, and they can be and should be handled in productive and constructive ways.

Best wishes,
--SA

Sergey A Kryukov

Re: Want to create layer like photoshop in vb.net

Dave Kreskowiak7-Mar-12 3:12

Dave Kreskowiak

7-Mar-12 3:12

No, we're good. If I was pissed at you, I'd just ignore you. Wink | ;)

SAKryukov wrote:
As to the criticism and possible negative estimates or votes, they are normal,
absolutely unavoidable in any truly creative environment, as well as our
mistakes, and they can be and should be handled in productive and constructive
ways.

Sadly, very true and Agreed.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Want to create layer like photoshop in vb.net

Sergey Alexandrovich Kryukov7-Mar-12 12:13

Sergey Alexandrovich Kryukov

7-Mar-12 12:13

Sergey A Kryukov

Re: Want to create layer like photoshop in vb.net

JohnPayton26-Mar-12 19:00

JohnPayton

26-Mar-12 19:00

Sorry if I'm jumping in here but I thought the conversation was interesting, I have worked with diehards of both language conventions. Both had valid reasons for their preferred environment.

But if I may, as a programmer that started writing software using Clipper (way back when, but late in life mid 40's and now nearing retirement) then progressed to VB4-6 and now VB.Net may I suggest that VB was for me an easier language to learn, and more importantly correct me if I'm wrong. One can create a working application very quickly using Visual Basic.

It's been a long time since I have to anything to do in C mainly because the company I work for uses Visual Basic as it's preferred programming environment.

DataGridView BeginEdit

Eddie Randell4-Mar-12 8:52

Eddie Randell

4-Mar-12 8:52

I have this code in CellValidating in order to try and position the cursor in the cell and select the contents, but the contents are not being selected (highlighted). Can anyone tell me why?

dg.Rows(e.RowIndex).Selected = True
dg(dg.Columns("Odds").Index, e.RowIndex).Selected = True
dg.CurrentCell = dg(dg.Columns("Odds").Index, e.RowIndex)
dg.BeginEdit(True)

Thanks

Re: DataGridView BeginEdit

Dave Kreskowiak4-Mar-12 12:29

Dave Kreskowiak

4-Mar-12 12:29

I think it's because you're doing all this from the Validating event handler. If you wait till after validation is done, you might get away with this.

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Dave Kreskowiak

OLEDB Provider

ivo753-Mar-12 8:55

ivo75

3-Mar-12 8:55

how to detect installed oledb provider in my PC. Jet 4.0 or ACE 12

Re: OLEDB Provider

Dave Kreskowiak3-Mar-12 12:14

Dave Kreskowiak

3-Mar-12 12:14

Try to connect to a database with one. If it fails, try the other.

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Dave Kreskowiak

Re: OLEDB Provider

Luc Pattyn3-Mar-12 13:05

Luc Pattyn

3-Mar-12 13:05

My idea exactly, but then I didn't want to reply that, as it sounds a bit like "I really don't know"...

Laugh | :laugh:

Luc Pattyn [My Articles] Nil Volentibus Arduum

Re: OLEDB Provider

Dave Kreskowiak3-Mar-12 14:09

Dave Kreskowiak

3-Mar-12 14:09

Really, it's the only reliable way to do it. Actually, I'd try using ACE.12 first, then downgrade to 4.0.

You could start check the version of Office that's installed, but then some application could have installed one of the Access Runtimes and making the detection code inaccurate.

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Dave Kreskowiak

Re: OLEDB Provider

Luc Pattyn3-Mar-12 14:26

Luc Pattyn

3-Mar-12 14:26

I fully agree; even if I knew a way to determine something like that, I'd probably go for the functional test anyway. With external dependencies involved, I prefer to eat the pudding, rather than to look for the boxes.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Re: OLEDB Provider

Dave Kreskowiak3-Mar-12 15:06

Dave Kreskowiak

3-Mar-12 15:06

Luc Pattyn wrote:
I prefer to eat the pudding, rather than to look for the boxes.

I haven't heard that one before. That's a good one.

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Dave Kreskowiak

Re: OLEDB Provider

ivo755-Mar-12 2:05

ivo75

5-Mar-12 2:05

what You mean? This

Public Sub ConnectToAccess()
    Dim conn As New System.Data.OleDb.OleDbConnection()
     conn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & databasePath.dbPath & ";Persist Security Info=False;"

        Try
       conn.Open()
       .......
    Catch ex As Exception
       conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & databasePath.dbPath & ";User ID=Admin;Password="
    conn.Open()
........
    Finally
       conn.Close()
    End Try
End Sub

Re: OLEDB Provider

Dave Kreskowiak6-Mar-12 5:43

Dave Kreskowiak

6-Mar-12 5:43

Kind of. I really wouldn't do it this way, but whatever works for you.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: OLEDB Provider

ivo756-Mar-12 6:08

ivo75

6-Mar-12 6:08

give me some example how to do this

I would like to create a textbox where I can input hour and minute.

AlainStP3-Mar-12 6:54

AlainStP

3-Mar-12 6:54

I am trying to figure out how to create a textbox, or another component where the user can click up and down to change the time (hours and minutes).

Like the one we use in windows when we need to change the hour/minute of our OS.

Thanks again

asp

Re: I would like to create a textbox where I can input hour and minute.

Dave Kreskowiak3-Mar-12 7:26

Dave Kreskowiak

3-Mar-12 7:26

I've never made one, but you could easily do this with a custom UserControl. A few textboxes and a couple of buttons should do it.

HourTextBox : MinuteTextBox : SecondsTextBox AmPmTextBox  UpButton
                                                          DownButton

Shouldn't be hard to figure out what to put in the Up/Down Button click handlers. You'll probably also handle the MouseDown/MouseUp events on those if the user wants to change the numbers without clicking for each increment.

Then the UserControl just exposes the time as a property. The gettor just puts a datetime object together based on the values in the textboxes. The settor does the opposite.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: I would like to create a textbox where I can input hour and minute.

Shameel3-Mar-12 7:46

Shameel

3-Mar-12 7:46

The DatePicker control allows you to do that, you just have to play around with its properties.

Re: I would like to create a textbox where I can input hour and minute.

AlainStP3-Mar-12 8:24

AlainStP

3-Mar-12 8:24

Thanks this is exactly what I was looking for

asp

DB connection string

ivo752-Mar-12 18:36

ivo75

2-Mar-12 18:36

Can I use same DB connection string to connect to MS Access 2003 and MS Access 2007? I use this "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & databasePath.dbPath & ";Persist Security Info=False;"

Re: DB connection string

Wayne Gaylard2-Mar-12 20:38

Wayne Gaylard

2-Mar-12 20:38

Yes, it is possible to use the OLE DB provider for the Microsoft Office 12.0 Access Database Engine for both 2003 and 2007 versions of Access, although it is not possible to use the Jet 4.0 OLE DB engine for Access 2007 databases.

Hope this helps

When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman

Re: DB connection string

ivo753-Mar-12 8:17

ivo75

3-Mar-12 8:17

I want to connect without install Microsoft Office 12.0 Access Database Engine in the client mashine, because my program is 2MB, but Microsoft Office 12.0 Access Database Engine is 26MB.

modified 3-Mar-12 14:29pm.

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