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What is the purpose of the data Set class that gets generated when you create a data set?
Also, how do I create a data adapter? Does the data adapter get created automatically when creating a data set.
Do you normally only create one data set in a program or do you create multiple data sets?
Now, I do have several different tables. I have login tables, teachers tables and student tables.
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How to import a MFC/C++ DLL into VB.NET 2005?
Network Development Kit 2.0
http://www.codeproject.com/internet/ndk.asp
I want to use this dll..
 
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You can do this using P/Invoke. Click[^]
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Hi,
I have a excel sheet, in that the fields are:
Name,EmployeeID,Address,Email.
Sourabh,757,New Bombay,something@something.com
I have a C1.Win.FlexGrid in which I have put the same columns in this grid with one more colum in the starting as Select(Boolean).
This is the code that I have written.....
<br />
Dim ofd As New OpenFileDialog<br />
Dim dgtemp As C1.Win.C1FlexGrid.C1FlexGrid<br />
Dim fn As String = ""<br />
Dim sheetname() As String<br />
<br />
ofd.AddExtension = True<br />
ofd.DefaultExt = ".xls"<br />
ofd.Filter = "Microsoft Excel Workbook(*.xls)|*.xls"<br />
ofd.ShowDialog()<br />
fn = ofd.FileName<br />
txtFile.Text = fn<br />
dgtemp = New C1.Win.C1FlexGrid.C1FlexGrid<br />
<br />
sheetname = dgtemp.LoadExcelSheetNames(fn)<br />
dgtemp.LoadExcel(fn, sheetname(0), C1.Win.C1FlexGrid.FileFlags.IncludeFixedCells)<br />
Thje bold part of the code is giving error as:
"Failed to open storage file."
Help...
Thanks and Regards,
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You're going to have to go to ComponentOne's site for support[^] on this. It's functionality specific to their control.
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Hello,
I have checked out the code at my end. It seems to be working fine. If the issue persists, I
would suggest you to contact at the following email addresses for further assistance.
support@componentone.com
Regards,
Allen Smith
Software Engineer
ComponentOne LLC
www.componentone.com
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That is solved, another problem now.
Eg: I have a flexgrid with two columns(Select as boolean and Name as string) in which in the column of name I already have my name, now if i again upload a excelfile which has my name, in the datagrid my name should come checked.
How do I do that. The thing which I have already done is as below:
It will take some time for you to read this, but please read as I am stuck in a quick sand.
Private Sub btnUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpload.Click<br />
Dim filename As String<br />
Dim od As New OpenFileDialog<br />
Dim SheetName() As String<br />
Try<br />
<br />
od.AddExtension = True<br />
od.DefaultExt = ".xls"<br />
od.Filter = "Microsoft Excel Workbook(*.xls)|*.xls"<br />
od.ShowDialog()<br />
filename = od.FileName<br />
SheetName = dgtmp.LoadExcelSheetNames(filename)<br />
dgtmp.LoadExcel(filename, SheetName(0), C1.Win.C1FlexGrid.FileFlags.IncludeFixedCells)<br />
<br />
Dim dgCol As C1.Win.C1FlexGrid.Column<br />
For Each dgCol In dgtmp.Cols<br />
dgCol.Name = dgtmp.Rows(0)(dgCol.Index)<br />
Next<br />
<br />
dgtmp.Cols.Add()<br />
dgtmp.Cols(dgtmp.Cols.Count - 1).Name = "SEL"<br />
dgtmp.Cols(dgtmp.Cols.Count - 1).DataType = System.Type.GetType("System.Boolean")<br />
<br />
objEms.RetrieveSearchData("FIS104", "BANK_CODE='" & BankCode & "'", "", sCompany, sPlant, dsRet, Nothing)<br />
If Not IsNothing(dsRet.Tables(0)) Then<br />
If dsRet.Tables(0).Rows.Count > 0 Then<br />
CLEARDATE = dsRet.Tables(0).Rows(0)("CLEAR_DATE")<br />
WITHDRAWLS = dsRet.Tables(0).Rows(0)("WITHDRAWLS")<br />
DEPOSITS = dsRet.Tables(0).Rows(0)("DEPOSITS")<br />
CHEQUENO = dsRet.Tables(0).Rows(0)("CHEQUE_NO")<br />
DESCRIPTION = dsRet.Tables(0).Rows(0)("DESCRIPTION")<br />
Else<br />
ShowMessage("Format not Defined", 30)<br />
End If<br />
End If<br />
<br />
Dim dgRow As C1.Win.C1FlexGrid.Row<br />
For Each dgRow In dgtmp.Rows<br />
'If dgRow.Index > 0 Then<br />
If dgtmp.Rows.Count - 1 > 0 Then<br />
With dgBankReco<br />
<big>Dim curRow As Integer = .FindRow(dgRow(CHEQUENO), 0, .Cols("CHEQUE_NO").Index, False, True, False)</big><br />
If Val(.Rows(curRow)("DEBIT").ToString()) = Val(IIf(IsNothing(dgRow(DEPOSITS)), 0, dgRow(DEPOSITS))) And Val(.Rows(curRow)("CREDIT").ToString()) = Val(IIf(IsNothing(dgRow(WITHDRAWLS)), 0, dgRow(WITHDRAWLS))) Then<br />
.Rows(curRow)("SEL") = 1<br />
.Rows(curRow)("CLEAR_DATE") = dgRow(CLEARDATE)<br />
dgRow("SEL") = 1<br />
End If<br />
End With<br />
Else<br />
dgtmp.Row = 0<br />
dgtmp.Rows.Fixed = 1<br />
End If<br />
Next<br />
<br />
<br />
Catch ex As Exception<br />
dsRet = Nothing<br />
End Try<br />
End Sub
The code in bold throws an exception as :
"Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index"
-- modified at 7:08 Thursday 22nd November, 2007
Thanks and Regards,
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Using a propertygrid control i show my object properties to set and get.
Using attribute properties like i show below, i can control Category, Description, even particular selection mode using TypeConverter() attribute.
<<DescriptionAttribute("Set if mailing is enabled"), _<br />
CategoryAttribute("Mailing")<br />
GetType(ComboProperty)>> _<br />
Public Property IntercambioIn()<br />
...
I need to read a password string, and i can't show password chars like '*'.
Does exist any attribute to show the setting using password char ('*').
Regards
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You can't do it in properties alone. You'd have to create your own custom property editor[^].
Scratch that. You CAN do it with a property. Look up the PasswordPropertyTextAttribute class.
<PasswordPropertyText(True)> _
Public Property Password() As String
Get
Return _password
End Get
...
End Property
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GoodMoring
I have a printdocument
If I want to draw a line that goes from left to right margin of the paper as I do?
Tks (Fulvio)
Fulvio
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The same way you'd draw a line on a controls surface, using the Graphics object you get in the PrintPage event of the PrintDocument. If you want the framework for an example, lookup the PrintDocument class.
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Hi! i am developing an application that will search for a within the document(PDF,Word,xml,etc), so basically its text search,you find anything which matches the name provided within a document
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Have a look at this article[^].
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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Is there a question?
Steve Jowett
-------------------------
Sometimes a man who deserves to be looked down upon because he is a fool, is only despised only because he is an 'I.T. Consultant'
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Hello
Can anybody help me how to set ActiveViewIndex in Wizard control?
I am getting this error while binding the wizard dynamically..
ActiveViewIndex is being set to '2'. It must be smaller than the current number of View controls '2'. For dynamically added views, make sure they are added before or in Page_PreInit event.
Parameter name: value
Thank in advance
kokila
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The answer is in the error message. You're trying to set the value of ActiveViewIndex to 2 when there are two items in its collection, numbered index 0 and index 1. Try setting it to 1 instead.
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I wrongly placed the code in page load. it should be in MyWizard.Init.
Now its working.
Thank you.
kokila B
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How can I change the format style of a column in a DatagridView so that I can enter the values in the given format. I want to set the format of a column of a datagirdview to a phone Number style(123-456-7890) i.e., ###-###-####. So that when I am entering data to it, it should automatically add the hyphen(-)after the 3rd and the 6th digit of the entered data,just like in a MaskEditBox control.
Could anybody please help ?
Thanks in Advance.
Sekhar 
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You cannot supply a format style to do this. You'd have to implement your own DataGridViewColumn to provide this functionality. Also, your other problem is localization. Not every country has the same phone number format.
Google results[^] for "vb.net custom datagridviewcolumn".
"vb.net Masked datagridviewcolumn"[^]
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This question belongs in the ASP.NET Forum.
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Hello every one,
I was trying to use may different custom cursors in different situations in my application. I was able to set icons (.ico files) as icons.
I also have to show these icons on the form.
Is there any way that i load these icons as cursors from the picture box
Regards
Nishkarsh
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No. Icons and Cursors have very different file formats. You'd have to use a conversion tool to convert between the two, AND supply the location for the cursor "hotspot" to complete the conversion. The "hotspot" is the pixel location in the image where the "click" happens.
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Hi Dave
My exact issue is that i do not want to give the icons as individual files as they may be deleted by the user knowingly or unknowingly.
I tried to add them in a new resource file but did not found a option to do it so i loaded them in different picture boxes and was hoping that may be i can use them when i will require to change the cursor..
Is there any other way to solve the issue
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nishkarsh_k wrote: My exact issue is that i do not want to give the icons as individual files as they may be deleted by the user knowingly or unknowingly.
Then you put them in resources. A PictureBox is just plain useless to hold a bunch of seperate images. You're needlessly complicating your code for no reason.
If you're using VB.NET 2005, you double-click the "My Project" node in the Solution Explorer, click on the Resources tab. There, you can add your icons and the designer will generate resource manager class code so you can use the icons quite easily.
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Hello there.
Consider the scenario below:
End-user has a paging device (IXO Device, AlphaMate, etc.) or a software that sends page messages. The device/software needs:
- number to dial
- pager number
- messag
Now that device/software connects to the "number to dial" and transmits the "pager number" and "message" to the receiving application (listening on "number to dial" using a modem)
We have got the receiving application working ok. But that app is a 3rd party tool and have some limitations so we wanted to develop our own listening application that will be connected to the "number to dial" using a simple fax modem.
As far as I know I would need to use the AT commands for this purpose. But couldn't find any usefull resources for this. All I can see is AT commands set whereas I would like to get hands on some code showing proper flow for receiving data from phone line.
Could anybody help me on this or guide me to some resource?
Thanks
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