dw.Rows and dw.Columns in dw.NET 1.5
Hi,
I have extended (in VB.NET) the datawindow.NET 1.5 by adding 2 simple
collections : Columns and Rows.
I can now use the datawindow / datastore just like the .NET DataTable.
For example (VB.NET) :
To enumerate columns and set the backcolor to red :
For each col As DatawindowColumn in dw.Columns
Debug.WriteLine("column " & col.ColumnName & " type " & col.ColumnType)
col.BackColor = Color.Red
Next
To set the value of 0 to column "foo" of each rows :
For each row As DatawindowRow in dw.Rows
row("foo") = 0
Next
To get the value of "foo" of the 30th row :
Debug.WriteLine(dw.Rows(30)("foo"))
if the value is NULL it returns DBNull.Value
the value is always in the good type.
New classes in my Company.Datawindow namespace :
DatawindowColumn (a dw column, expose some properties to handle the modify /
describe (ie BackColor))
DatawindowColumns (Inherits System.Collections.DictionaryBase)
DatawindowRow (a simple row)
DatawindowRowEnumerator (Implements IEnumerator)
DatawindowRows (Implement IEnumerable)
Datawindow (Inherits Sybase.Datawindow.DatawindowControl)
Datastore (Inherits Sybase.Datawindow.DataStore)
I create Rows and Columns collections by overriding the function
OnDataWindowCreated.
=========================================================================
Also added to the original control :
-SetAlternRow (simply set the datawindow to alternate the background color
of the detail band),
-SetSelectionType (backcolor, selectrow, multiple/single),
-SaveImagesToDatabase (save images of a datawindow to an MSSQL database),
-RestoreImagesFromDatabase,
-SaveToDatabase (save the "FullState / Changes" of a datawindow to an MSSQL
database),
-LoadFromDatabase,
-RenderBarcode (generate barcode 3 of 9 on the fly for a given field, no
special font needed)
-Translate (translate datawindow labels to a given language using a simple
caption system)
-Event RowClick (with the datawindow object clicked // the famous
ObjectUnderMouse hehehe)
-Event RowDoubleClick
=========================================================================
If you need tips to add this kind of features to your Datawindow, I'm here
to help you !
S�bastien Chandonnet
|
0 |
|
S
3/31/2006 6:15:41 PM
sybase.datawindow.net
2302 articles. 
0 followers.
1 Replies
1253 Views
Excellent! Thanks for sharing this. Another way to share this with the
user community is to create an example application and upload it to
the DataWindow .NET section on CodeXchange
(http://codexchange.sybase.com).
Thanks for helping other DataWindow .NET customers!
Regards,
Dave Fish
Sybase
On 31 Mar 2006 10:15:41 -0800, "S�bastien Chandonnet"
<sebastien.chandonnet@Groupe-Thibodeau.com> wrote:
>Hi,
>
>I have extended (in VB.NET) the datawindow.NET 1.5 by adding 2 simple
>collections : Columns and Rows.
>
>I can now use the datawindow / datastore just like the .NET DataTable.
>
>For example (VB.NET) :
>
>To enumerate columns and set the backcolor to red :
>For each col As DatawindowColumn in dw.Columns
> Debug.WriteLine("column " & col.ColumnName & " type " & col.ColumnType)
> col.BackColor = Color.Red
>Next
>
>To set the value of 0 to column "foo" of each rows :
>For each row As DatawindowRow in dw.Rows
> row("foo") = 0
>Next
>
>To get the value of "foo" of the 30th row :
>Debug.WriteLine(dw.Rows(30)("foo"))
>
>if the value is NULL it returns DBNull.Value
>the value is always in the good type.
>
>New classes in my Company.Datawindow namespace :
>DatawindowColumn (a dw column, expose some properties to handle the modify /
>describe (ie BackColor))
>DatawindowColumns (Inherits System.Collections.DictionaryBase)
>DatawindowRow (a simple row)
>DatawindowRowEnumerator (Implements IEnumerator)
>DatawindowRows (Implement IEnumerable)
>Datawindow (Inherits Sybase.Datawindow.DatawindowControl)
>Datastore (Inherits Sybase.Datawindow.DataStore)
>
>I create Rows and Columns collections by overriding the function
>OnDataWindowCreated.
>
>=========================================================================
>Also added to the original control :
>-SetAlternRow (simply set the datawindow to alternate the background color
>of the detail band),
>-SetSelectionType (backcolor, selectrow, multiple/single),
>-SaveImagesToDatabase (save images of a datawindow to an MSSQL database),
>-RestoreImagesFromDatabase,
>-SaveToDatabase (save the "FullState / Changes" of a datawindow to an MSSQL
>database),
>-LoadFromDatabase,
>-RenderBarcode (generate barcode 3 of 9 on the fly for a given field, no
>special font needed)
>-Translate (translate datawindow labels to a given language using a simple
>caption system)
>-Event RowClick (with the datawindow object clicked // the famous
>ObjectUnderMouse hehehe)
>-Event RowDoubleClick
>=========================================================================
>
>If you need tips to add this kind of features to your Datawindow, I'm here
>to help you !
>
>S�bastien Chandonnet
>
>
|
|
0 |
|
dfish
3/31/2006 9:54:08 PM
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