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vb.net 2005 Visual Studio Array help

Good Day

I am having difficulty with my array declaration in my application. One form has my DataGridView on it. It has
a button to generate a report. The form that is loaded from the button click has the Crystal Viewer on it. So to start,
in the generate button I can load the data from my DataGridView into the arrays using this code:

Records = DataGridView.RowCount
Dim ParmArray(Records - 1) As String
Dim ParmValue(Records - 1) As String

Dim i As Integer
For i = 0 To Records - 1
ParmArray(i) = DataGridView.Rows(i).Cells(1).Value.ToString
ParmValue(i) = DataGridView.Rows(i).Cells(2).Value.ToString
Next

In order to share the the Arrays with the second form with the Crystal Viewer so I can build the parameter
list to pass to the report, I put the Array declarations in the Globals module. When I do that,
the Arrays do not get assigned the RecordCount - 1 value to dimension the array.
It seems like a pretty straight-forward idea...share arrays between forms. Is it not possible to do it this way?

Thanks,
Ed

AlexFM

Dim ParmArray() As String ' class member

In the function:

Redim ParmArray(Records - 1)

Praveen Kumar

Did you use Public when you declared this Array's(in a module)?

Ex:
Public ParamArray() As String

In your DataGrid form, you have to mention the size of array as below

if VS 2005
Array.Resize(ParamAyyay,Records)

If VS 2003
Redim ParamArray(Records)

lbsi

ASKER

Will this allow me to "see" the values I assigned to the Array in the first form from the code in the second form?

Praveen Kumar

yes, but declare that arrays in a module with Public keyword

lbsi

ASKER

Good Morning

Here is what I have:
1) Public declared Arrays in a module along with the variable to assign the recordcount of the DataGridView to.
2) Class EnterParms contains the form with the DataGridView and the GenerateReport button where I am putting the
DataGridView values into the Arrays. Also, shows the ShowReport form.
3) I use the ShowReport Load event to get the Array values to process for the parameters which get passed to the
CrystalReprotViewer.

***When I step into the code for the EnterParms class, the Arrays are not getting dimensioned when I assign the Record
variable with the recordcount of the DataGridView. Is there a better way to do this or am I missing something maybe?

Thanks,
Ed

Public Module Globals

'Declare Arrays and variable to hold record count from DataGridView
Public Records As Integer
Public ParmArray(Records - 1) As String
Public ParmValue(Records - 1) As String

End Module

Public Class EnterParms

Public Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGenerateReport.Click

Records = DataGridView.RowCount

'Get DataGridView values and load into Arrays
Dim i As Integer
For i = 0 To Records - 1
ParmArray(i) = DataGridView.Rows(i).Cells(1).Value.ToString
ParmValue(i) = DataGridView.Rows(i).Cells(2).Value.ToString
Next

Dim ShowReport As New LBSI_ShowReport
LBSI_ShowReport.Show()

End Sub

End Class

Public Class ShowReport

Private Sub LBSI_ShowReport_Load

Dim Par As CrystalDecisions.Shared.ParameterValues
Dim ParD As New CrystalDecisions.Shared.ParameterDiscreteValue()
Dim i As Integer
For i = 0 To Records - 1
ParmName = ParmArray(i)
ParmVal = ParmValue(i)
Par = RD.DataDefinition.ParameterFields.Item(ParmName).CurrentValues
ParD.Value = "" & CStr(ParmVal) & ""
Par.Add(ParD)
RD.DataDefinition.ParameterFields.Item(ParmName).ApplyCurrentValues(Par)
Next

End Sub
End Class

ASKER CERTIFIED SOLUTION

Praveen Kumar

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lbsi

ASKER

Thanks...all is well now. :)

Have a Good Day,
Ed