Hierarchical Flexgrid - Error 30022

[ianjones007]

Can anyone help? - I have searched MSDN and these forums, but to avail.

I am trying to populate a mshflexgrid (in VB6) with the following simple statement:

Private Sub Form_Load()

Dim cn As New ADODB.Connection
Dim rs As New ADODB.Recordset

With cn
.Provider = "SQLOLEDB"
.ConnectionString "server=xxxx;database=xxx_test;uid=xxxxx;password=pword"
.Open
End With

rs.Open "select * from Product", cn

Set MSHFlexGrid1.DataSource = rs

End Sub

The final statement, 'Set MSHFlexGrid1.DataSource = rs' produced the following error message:

Run Time Error '30022':
The Hierarchical Flexgrid does not support the requested type of data binding.

I have added the Microsoft Hierarchical Flexgrid Control 6.0 (SP4) to components and added Microsoft ActiveX Data Objects 2.7 Library to References.

That is everything there is - broken down to simplest level, yet still no joy. Can anyone help - is it a simple programming error or am I missing a component??

[MMaenB]

I tried to find this error in my MSDN , and found the following solution :

SYMPTOMS
Attempting to rebind the MSHFlexGrid to a different Data Environment as the DataSource property results in an error:
Runtime Error 30022, The Hierarchical FlexGrid does not support the requested type of data binding.

CAUSE
If the MSHFlexGrid.DataMember is set to a Data Environment other than the original, the MSHFlexGrid attempts to rebind the data using the previous DataSource property setting. Because the same Command does not exist in the subsequent Data Environment, an error results.

RESOLUTION
To work around this problem, set MSHFlexGrid.DataSource = Nothing before rebinding to the next Data Environment.

I hope it will work for you ....

mmaenb

[ianjones007]

Thanks MMaenB - that didn't directly solve the problem but somehow it is fixed! Typical VB!

I tried setting the datasource to nothing, but got the same problem. I then found I had set the datasource to rs in properties and datamember to cn, so I cleared this but with the same 30022 error.

I was about to give up and go to a plain flexgrid when I ran the program again and found that it worked!!?? I dont know how or why, or if resetting the properties was the definitive answer, but I aint buggering around with it now!

Cheers MMaenB!

[randem]

ianjones007,


The only thing that I saw that was that you should have used

Dim rs as ADODB.Recordset

Set rs = New ADODB.Recordset

before using the reference in the MSHFlexGrid.Datasource statement and in the design properties of MSHFlexGrid never default set the Datasource property to anything if you are going to change it on the fly.