Re: On Enter Button1 is clicked - Visual Basic Discussion Boards

how can change the LeftMost dimension of an array

Rupesh Kumar Swami17-Jun-08 2:50

17-Jun-08 2:50

hi all
i want to change the leftmost dimension of a two - dimensional array. but redim statement does not change the Left Most dimension. For example i declare a two-dimensional array as following
Dim WrappingItemInfo(0, 4) As String
after that i write following statement at particular condition
ReDim Preserve WrappingItemInfo(1, 4)
but above statement give error "'ReDim' can only change the rightmost dimension.".
so how can i change the leftmost dimension of an array ?

Rupesh Kumar Swami
Software Engineer,
Integrated Solution,
Bikaner (India)

My Company

Re: how can change the LeftMost dimension of an array

Christian Graus17-Jun-08 3:01

Christian Graus

17-Jun-08 3:01

set WrappingItemInfo(1) to be a new array of four elements. This would work in C#, should work in VB.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: how can change the LeftMost dimension of an array

Rupesh Kumar Swami17-Jun-08 3:34

Rupesh Kumar Swami

17-Jun-08 3:34

sir,
thanks for your response but i does not properly get you
can you explain it bit more with code(whether in c# or vb)

one more thing. in my previous post, i simply give a example. In real condition, Leftmost dimension of an array is increased every time by one when a particular condition is found.

Rupesh Kumar Swami
Software Engineer,
Integrated Solution,
Bikaner (India)

My Company

Re: how can change the LeftMost dimension of an array

Christian Graus17-Jun-08 4:30

Christian Graus

17-Jun-08 4:30

int [,] n = new int[5,5]();
n[0] = new int[5]();

something like that

Re: how can change the LeftMost dimension of an array

Guffa17-Jun-08 12:22

Guffa

17-Jun-08 12:22

You should use a dynamic collection instead of an array, like a List(Of String()).

An array can't be resized, so what the ReDim command does is to create a new array, and copy all data from the old array to the new array. It can get pretty expensive as the array grows...

Despite everything, the person most likely to be fooling you next is yourself.

On Enter Button1 is clicked

Assaf8217-Jun-08 2:04

Assaf82

17-Jun-08 2:04

Hello
How i can let the user who use my application when he click enter
so the button1_click event is fire

Thank for your help

Assaf

Re: On Enter Button1 is clicked

Christian Graus17-Jun-08 2:08

Christian Graus

17-Jun-08 2:08

Well, don't call it button1, for a start ( that's just dumb )

You have properties on the form for the AcceptButton and CancelButton. These set what buttons are pressed by Enter and Escape

Re: On Enter Button1 is clicked

Assaf8217-Jun-08 2:12

Assaf82

17-Jun-08 2:12

I'm sorry to ask this question on this form, it's an asp.net application

But Thanks for your help

Assaf

Re: On Enter Button1 is clicked

Christian Graus17-Jun-08 2:26

Christian Graus

17-Jun-08 2:26

Ah... well, it's good to consider the forum you use, and how you word the question, so you can feel sure people will actually understand what you're asking.

Runtime Problem

monika_vasvani17-Jun-08 0:06

monika_vasvani

17-Jun-08 0:06

Hi ALl

I have one windows based application in vb.net.

when i place one button named as "Report" on form,it appears perfectly at design time but when run this application,i have not seen "Report" button on my
form.

what happened excetly?

pls help me

Thanks
monika

Re: Runtime Problem

Ajay.k_Singh17-Jun-08 0:33

Ajay.k_Singh

17-Jun-08 0:33

Check Visible property of button it has to be true, to be sure of it you may also set this property on Form load event.

-Ajay.

Re: Runtime Problem

~Khatri Mitesh~17-Jun-08 2:04

~Khatri Mitesh~

17-Jun-08 2:04

Hii Monika
Just check the button Location,Size,Visible property.
else delete the button and re add the new button.
May be it solve your problem
Thanx
Mitesh Khatri

Problem Retrieving a Connection String from App.Config

Vimalsoft(Pty) Ltd16-Jun-08 22:06

Vimalsoft(Pty) Ltd

16-Jun-08 22:06

Good Morning All

i have the Following App.Config file in VB2003 and a Windows Application.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
	<appSettings>
		<!--   User application and configured property settings go here.-->
		<!--   Example: <add key="settingName" value="settingValue"/> -->
		<add key="timer.Enabled" value="True" />
		<add key="timer.Interval" value="1000" />
		<connectionstring>
		<add name ="Tshwane_Train"
		connectionString = "login=sde;Password=topology;Database=Tshwane_Valuations_Train;
		Server=SGIICORNETGS01"/>
		</connectionstring>
	</appSettings>	
</configuration>

and am Accessing this Connction string from the Vb App, like this

Dim constr As String = Configuration.ConfigurationSettings.AppSettings("Tshwane_Train")

When i compile the Application, i get no Errors ,but but when i try to run the application, i mean the Part that will need to Connect to the Database i get the Following Error.

An unhandled exception of

type 'System.Configuration.ConfigurationException' occurred in system.dll<br />
Additional information: Unrecognized element

What is Wrong

Thanks

Vuyiswa Maseko,

Sorrow is Better than Laughter, it may Sadden your Face, but It sharpens your Understanding

VB.NET/SQL7/2000/2005
http://vuyiswamb.007ihost.com
http://Ecadre.007ihost.com
vuyiswam@tshwane.gov.za

Re: Problem Retrieving a Connection String from App.Config

Andy_L_J17-Jun-08 2:05

Andy_L_J

17-Jun-08 2:05

You might try something like this:

connStr = My.Settings.ConnectionString

Works for me.

I don't speak Idiot - please talk slowly and clearly

Re: Problem Retrieving a Connection String from App.Config

Vimalsoft(Pty) Ltd17-Jun-08 3:07

Vimalsoft(Pty) Ltd

17-Jun-08 3:07

hi man

Am i missing Something here, your My(.), intelisense does not recognise it, am creating a Windows Application. Are there any references that i missed ?

thanks

Re: Problem Retrieving a Connection String from App.Config

Vimalsoft(Pty) Ltd17-Jun-08 3:14

Vimalsoft(Pty) Ltd

17-Jun-08 3:14

At First i saw my e-mail with this Code from you

Public Sub initializeDataConnection()

        Dim strConn As String

        Dim settings As ConnectionStringSettings

        settings = ConfigurationManager.ConnectionStrings _
              (WindowsApplication1.My.MySettings.APPProdConnectionString")

        If Not settings Is Nothing Then
            strConn = settings.ConnectionString
            cn = New SqlConnection(strConn)
        End If

    End Sub

and when i click to go to CodeProject, i see a Different Answer, did you change it?

let us look at the above code, i understand what you are doing and in the Following line where you declare like this

Dim settings As ConnectionStringSettings

The ConnectionStringSetting is not recognised, am using VS2003 and VB(Windows App) is this Applicable to it?

Thanks

Re: Problem Retrieving a Connection String from App.Config

Mark Churchill17-Jun-08 3:14

Mark Churchill

17-Jun-08 3:14

Your app.config has a seperate section for connection strings. Have a google.

Mark Churchill
Director
Dunn & Churchill
Free Download:
Diamond Binding: The simple, powerful, reliable, and effective data layer toolkit for Visual Studio.

Re: Problem Retrieving a Connection String from App.Config

Vimalsoft(Pty) Ltd17-Jun-08 4:59

Vimalsoft(Pty) Ltd

17-Jun-08 4:59

i have Resolved the Problem

like this, the App.Congif File looks like this

<configuration>
	<appSettings>
		<!--   User application and configured property settings go here.-->
		<!--   Example: &lt;add key="settingName" value="settingValue"/> -->
		<add key="timer.Enabled" value="True" />
		<add key="timer.Interval" value="1000" />
		<add key="Tshwane_Train" value="User id=sde;Password=topology;Database=Tshwane_Valuations_Train;Server=SGIICORNETGS01"/>
    </appSettings>
</configuration>

and am Accessing it from my code like this

Dim constr As String = Configuration.ConfigurationSettings.AppSettings("Tshwane_Train")

And its working

Thanks for your Answer

Re: Problem Retrieving a Connection String from App.Config

Noctris18-Jun-08 0:39

Noctris

18-Jun-08 0:39

The "key" attribute (or node .. what is this thing anyway ?) does not have a connectiontring atrribute.

Use: <add key="keyname" value="value" /> and it should work...

you can skip the <connectionstrings> <connectionstrings /></connectionstrings> part too...

combobox Problem....

soniasan16-Jun-08 21:25

soniasan

16-Jun-08 21:25

I am working in window based application

funFillCombo_prod(CmbProduct, "select productid,product from product_master where status=1")
CmbProduct.ValueMember = "productid"
CmbProduct.DisplayMember = "product"
CmbProduct.SelectedIndex = 0

In function I fill the combobox ……… by dataset
Public Function funFillCombo_prod(ByVal cmbCombo As ComboBox, ByVal strsql As String) As Boolean
Try
Dim intI As Integer
If con.State <> ConnectionState.Open Then con.Open()
GDataAdapter = New SqlDataAdapter(strsql, con)
GDataSet = New DataSet()
GDataAdapter.Fill(GDataTable)
cmbCombo.DataSource = GDataTable.DefaultView
funFillCombo_prod = True
Catch ex As Exception
MsgBox(Err.Source & " : " & Err.Description, vbInformation, g_MSG_Title)
funFillCombo_prod = False
Finally
GDataSet = Nothing
End Try
Exit Function
End Function

Private Sub CmbProduct_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CmbProduct.SelectedIndexChanged
If CmbProduct.Items.Count > 0 Then
If CmbProduct.SelectedIndex <> -1 Then
MessageBox.Show(CmbProduct.SelectedValue.ToString())
End If
End If

End Sub

Problem is that in CmbProduct_SelectedIndexChanged I want valumember of a combobox

But msgbox which I write in that event is giving me the desired o/p but problem is that…
For two times I got this message System.Data.DatarowView. then I got the valuemember which I require,

Please tell me how to solve this System.Data.DatarowView. Problem

Re: combobox Problem....

Christian Graus17-Jun-08 2:09

Christian Graus

17-Jun-08 2:09