AddHandler Question - Visual Basic Discussion Boards

Tamimi - Code5-Dec-06 1:03

5-Dec-06 1:03

check this :
http://www.c-sharpcorner.com/winforms/ExcelReadMG.asp

http://www.codeproject.com/useritems/Excel_Application_in_C_.asp

http://www.c-sharpcorner.com/3/StocksIntoExcelMG.asp

http://visualbasic.about.com/od/learnvbnet/a/blecvbsbs1403.htm

http://www.vbdotnetheaven.com/Code/Jul2003/2124.asp[^]

When you get mad...THINK twice that the only advice
Tamimi - Code

how to write code for datagrid sort command......

tirumal12315-Dec-06 0:47

tirumal1231

5-Dec-06 0:47

i have tried much on for sorting a simple datagrid but yup!

Dim DV As DataView
Dim ds1 As DataSet
DV = ds1.Tables("tbl_emps").DefaultView
Me.DataGrid1.DataSource() = DV
Me.DataGrid1.DataBind()
this is the code what i have written..

the error is :

Object reference not set to an instance of an object.
can anyone help me out please Smile | :)

tirumal

Flash in .NET from

IPhilVeryGood5-Dec-06 0:42

IPhilVeryGood

5-Dec-06 0:42

Does anybody knows how to play an swf file inside a .NET form.
I tried to use the flash ocx component but it says failed to load activeX.
Is there any other means?

Thanks in advance,

Phil

Re: Flash in .NET from

milkyjoe5-Dec-06 6:11

milkyjoe

5-Dec-06 6:11

You could use a webbrowser control and navigate to the swf file

Add the WebBrowser control to your form and call the navigate method from code
i.e. WebBrowser1.navigate("pathto swf").
Should work as long as a working swf player is registered with IE.

i need one example keypress event Program in VB.Net

somagunasekaran4-Dec-06 23:18

somagunasekaran

4-Dec-06 23:18

I need one example program for Keypress event.that is put on Ascii values.so pls tel me one textbox to another textbox.pls tell me the exmple program in VB.Net

Thanking You
somasundaram G

Re: i need one example keypress event Program in VB.Net

king gamo5-Dec-06 3:27

king gamo

5-Dec-06 3:27

///6.0

If KeyAscii = 8 Then
Exit Sub
End If

If KeyAscii = 46 Then
If InStr(txtRate.Text, Chr(46)) = 0 Then
Exit Sub
Else
KeyAscii = 0
End If
End If

If Not IsNumeric(Chr(KeyAscii)) Then
KeyAscii = 0
End If

///.Net 2005
If Asc(e.KeyChar) = 8 Then
Exit Sub
End If

If Asc(e.KeyChar) = 46 Then
If InStr(txtRate.Text, Chr(46)) = 0 Then
Exit Sub
Else
e.Handled = True
End If
End If

If Not IsNumeric(e.KeyChar) Then
e.Handled = True
End If
End Sub
////
this is for trapping only numbersand 1 decimal point in a textbox on the keypress event. hope it helps

Love makes the world go round

Re: i need one example keypress event Program in VB.Net

Dave Kreskowiak5-Dec-06 14:33

Dave Kreskowiak

5-Dec-06 14:33

All you have to do is handle the KeyDown event of the TextBox. I have no idea what you want to do with the Ascii value, so...

Private Sub TextBox1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
    ' The keycode is in e.Keycode.
    Console.WriteLine("KeyCode value: " & e.KeyCode )
End Sub

Dave Kreskowiak
Microsoft MVP - Visual Basic

AddHandler Question

Pete Newman4-Dec-06 21:55

Pete Newman

4-Dec-06 21:55

vs.net ( vb ) 2005

I have a form which when loaded adds x number of checkboxes. In the function i have written to add the checkboxes i have included the folling lines

ACheckBox.Tag = Index

' Index being the number of the current Checkbox

AddHandler aCheckBox.CheckChanged, AddressOf MyClickHandler

How in the 'MyClickHandler' sub will i be able to find the index of the aCheckBox that was clicked ?

Thanks for any help D'Oh! | :doh:

I really do need help..... all this computer stuff is way over my head !!

Re: AddHandler Question

nlarson115-Dec-06 2:05

nlarson11

5-Dec-06 2:05

Sub MyClickHandler(sender as object,e as system.eventargs)

sender.tag ' checkbox that was checked.

end sub

Re: AddHandler Question

Dave Kreskowiak5-Dec-06 14:24

Dave Kreskowiak

5-Dec-06 14:24

To expand on the other posters answer... When you create the checkboxs in your code, set the Tag property of each CheckBox to the number you want. You can then look at that property in the ClickHandler code to figure out which one was clicked.

Dave Kreskowiak
Microsoft MVP - Visual Basic

replacing a string that has double quotes to single qoutes

steve_rm4-Dec-06 20:35

steve_rm

4-Dec-06 20:35

Hello,

I have some strings which I want to replace them with single quotes so that I can use them as arguments that are passed to a sql query.

Example, string variable Name:
"Peter John"

Should be replaced with single quotes
'Peter John'

so name should contain only 'Peter John'

Is there any possible way to do this.

I have tried doing the following:
name.replace(34, 39) 'unicode characters, did seem to work.
name.replace(" "" ","'") 'Not work either

I have been told to use the escape characters:
name.replace('\"','\'')' Syntax error expression expected

Many thanks for any help,

Steve

Re: replacing a string that has double quotes to single qoutes

Taylor Kobani4-Dec-06 23:22

Taylor Kobani

4-Dec-06 23:22

please tell us why u intend to do this

Re: replacing a string that has double quotes to single qoutes

Guffa4-Dec-06 23:47

Guffa

4-Dec-06 23:47

steve_rm wrote:
I have been told to use the escape characters:
name.replace('\"','\'')' Syntax error expression expected

As you asked in the C# forum, you got C# code. You can't use escape sequences in VB.

---
b { font-weight: normal; }

Re: replacing a string that has double quotes to single qoutes

IPhilVeryGood5-Dec-06 0:39

IPhilVeryGood

5-Dec-06 0:39

Not totaly sure I understand your request, but if the value of 'name' variable contains the double quote, name.replace("""","'") should work.

Phil

Activation Program

pathak784-Dec-06 18:23

pathak78

4-Dec-06 18:23

hi,

Any one have an idea about making activation software.

Thanks,

Re: Activation Program

MatrixCoder4-Dec-06 19:10

MatrixCoder

4-Dec-06 19:10

Could you be more specific?

Making Trail Software

pathak784-Dec-06 18:05

pathak78

4-Dec-06 18:05

Hi,
I want to make a software for trail use of 30 days or 15 days etc.
Please give me an idea.

Thanks,

Re: Making Trail Software

MatrixCoder4-Dec-06 19:14

MatrixCoder

4-Dec-06 19:14

They way I would do it is, after you install your program, store the date that your program was installed for the first time, and use DateTime function to add the days since ran. Then, if your program has been installed for 30 days, set a Boolean value that locks the interface (or however you want to discontinue access to your program).

Re: Making Trail Software

Leah_Garrett5-Dec-06 14:40

Leah_Garrett

5-Dec-06 14:40

Where would you store the values?

Usual user settings locations would be easy enough to find eg: isolated storage.

A key in the registry? You could create an algorithm for generating a key in the registry and just store the date with no other identifying informaiton. And then just leave the key there until a full version was installed.

Re: Making Trail Software

MatrixCoder5-Dec-06 17:20

MatrixCoder

5-Dec-06 17:20

Leah_Garrett wrote:
Where would you store the values?

In the program. Every time it starts up, it checks to see if it has been 30 days since it's been installed.

Re: Making Trail Software

Leah_Garrett5-Dec-06 17:23

Leah_Garrett

5-Dec-06 17:23

MatrixCoder wrote:
In the program.

You mean as part of the binary? Have you got code samples or references?

Re: Making Trail Software

pathak785-Dec-06 17:42

pathak78

5-Dec-06 17:42

Hi,
I have already tries this but there is one loose point.
If a user not changed his system date and runs our software at the same date in which date it installed, No way to increase run days.
Think about it and give me any more idea about this.

Thanks for your reply.

VB.Net Windows Application Performance [modified]

Ravi kumar G4-Dec-06 17:58

Ravi kumar G

4-Dec-06 17:58

Dear Friends,

I have faced Big Problem in my Project Boecoz of Performance Issue,
in my application some forms have lot of controls that kind of forms takes too much time to open and process time.
"SO HOW TO IMPROVE THE PERFORMANCE IM MY APPLICATION"

Thanks and Regards
Ravi.G

-- modified at 9:46 Tuesday 5th December, 2006

Ravikumar
[Coimbatore]

Re: VB.Net Windows Application Performance

Dave Sexton4-Dec-06 21:10

Dave Sexton

4-Dec-06 21:10

I think you've answered your own question there - use fewer controls on a form & create more forms.

Re: VB.Net Windows Application Performance

Ravi kumar G5-Dec-06 3:10

Ravi kumar G

5-Dec-06 3:10

Yes it s true, bocoz i have used lot of tab pages, but thats is client requirements so i want some other solution,

Thanks
Ravi.G

Ravikumar
[Coimbatore]

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