Welcome!

Microsoft Cloud Authors: David H Deans, Liz McMillan, Pat Romanski, Janakiram MSV, Jnan Dash

Related Topics: Microsoft Cloud, PowerBuilder

Microsoft Cloud: Article

DataWindow.NET How To: DataWindow Formatting

A simple but powerful way of formatting data in the presentation layer

In this article, we're going to look at how DataWindow.NET technology is a simpler but more powerful way of formatting data in the presentation layer.

We'll be taking a sample application provided by Microsoft for .NET and implementing it using DataWindow.NET technology. In this case, we're using the Visual Basic .NET Code Sample: DataGrid Formatting sample application available at www.microsoft.com/downloads/details.aspx? FamilyID=28fd458f-5571-42b4-a2fe-09b69ddf0863&displaylang=en.

The original sample was written to connect to the Microsoft Northwind sample database. So you'll need MSDE or SQL Server with that sample database installed if you want to try it out for yourself. Also like last month's article, the sample code for this article is intended as an addition to the original sample so you can compare them side-by-side. After adding the sample code files from this article to the original sample, you can switch between the DataGrid and DataWindow implementations by changing the startup form for the project (see Figure 1).

Main Form
The main form of the application consists of a DataGrid or DataWindow and four command buttons that apply "Default," "Table Style," "Column Style," and "Grid Properties" formatting to the DataGrid or DataWindow control. Table 1 shows the results of the different formatting applied to the DataGrid and DataWindow respectively.

The primary difference between the DataGrid and DataWindow implementations with regard to form variables is that the DataGrid has a DataSet defined (ProductData) and a constant (PRODUCT_TABLE_NAME). This particular VB.NET example, unlike the last two we looked at, is a typical ADO.NET sample that uses a DataAdapter and a DataSet to retrieve and store the data and then fill the DataGrid. The PRODUCT_TABLE_NAME constant is used to name the result set of interest in the DataSet because a .NET DataSet can actually hold multiple result sets.

Each of the command buttons calls two form methods (ResetDemo and BindDataGrid or BindDataWindow) and then a third form method for the non-default styles that sets up that particular style (see Table 2).

In the DataGrid implementation, the ResetDemo method clears the DataSet and then resets each of the various formatting properties that get set during the demo.

DataGrid ResetDemo

If Not IsNothing(ProductData.Tables(PRODUCT_TABLE_NAME)) Then
  ProductData.Tables(PRODUCT_TABLE_NAME).Clear()
End If

With grdProducts
   .BackgroundColor = SystemColors.InactiveCaptionText
   .CaptionText = ""
   .CaptionBackColor = SystemColors.ActiveCaption
   .TableStyles.Clear()
   .ResetAlternatingBackColor()
   .ResetBackColor()
   .ResetForeColor()
   .ResetGridLineColor()
   .ResetHeaderBackColor()
   .ResetHeaderFont()
   .ResetHeaderForeColor()
   .ResetSelectionBackColor()
   .ResetSelectionForeColor()
   .ResetText()
   .BorderStyle = DefaultGridBorderStyle
End With

The DataWindow implementation of ResetDemo is much simpler because we only need to reset the properties on the DataWindow control. The properties of the DataWindow object get reset during the BindDataWindow method when we reassign the DataWindow object to the control.

DataWindow ResetDemo

dw_products.BorderStyle = DataWindowBorderStyle.None
dw_products.TitleBar = False
dw_products.Text = ""

Both the BindDataGrid and BindDataWindow methods try to connect to the SQL Server version of the Northwind database and then try to connect to the MSDE version if the SQL Server version can't be found. The DataGrid implementation then uses an SqlDataAdapter class to retrieve the data from the database and routes it to the DataSet. Then it assigns that DataSet as the DataSource for the DataGrid control.

DataGrid BindDataGrid

Dim ProductAdapter As New SqlDataAdapter( _
  "SELECT ProductID, ProductName, UnitPrice, UnitsInStock FROM products", _
  northwindConnection)
ProductAdapter.Fill(ProductData, PRODUCT_TABLE_NAME)
grdProducts.DataSource = ProductData.Tables(PRODUCT_TABLE_NAME)

The DataWindow implementation of the BindDataWindow method does pretty much the same thing using DataWindow related classes. First the OleDB connection is bound to a DataWindow.AdoTransaction object. We then reset the DataWindow object assigned to the DataWindow control, assign the AdoTransaction object to the DataWindow control, and then retrieve the DataWindow.

DataWindow BindDataWindow

Dim SQLCA As New Sybase.DataWindow.AdoTransaction(conn, "")
SQLCA.BindConnection()

dw_products.LibraryList = "dwgridformatting.pbl"
dw_products.DataWindowObject = ""
dw_products.DataWindowObject = "d_g_products"
dw_products.SetTransaction(SQLCA)
dw_products.CreateHeaderSortArrows()
dw_products.Retrieve()

The FormatGridwithoutTableStyles, FormatGridwithTableStyles, and FormatGridwithBothTablesAndColumnStyles methods are all somewhat similar. The FormatGridwithoutTableStyles method (only an excerpt is shown below) sets the format by manipulating the properties of the DataGrid itself:

FormatGridWithoutTableStyles

With grdProducts
   .BackColor = Color.GhostWhite
   .BackgroundColor = Color.Lavender
   .BorderStyle = BorderStyle.None
   .CaptionBackColor = Color.RoyalBlue
   .CaptionFont = New Font("Tahoma", 10.0!, FontStyle.Bold)
   .CaptionForeColor = Color.Bisque
   .CaptionText = "Northwind Products"
   .Font = New Font("Tahoma", 8.0!)
   .ParentRowsBackColor = Color.Lavender
   .ParentRowsForeColor = Color.MidnightBlue
End With

The FormatGridwithTableStyles method (only an excerpt is shown below) takes the same approach for many properties, but it also defines a DataGridTableStyle object to handle some of the other properties and then assigns that to the DataGrid:

FormatGridWithBothTableAndColumnStyles

Dim grdTableStyle1 As New
  DataGridTableStyle()
With grdTableStyle1
   .AlternatingBackColor = Color.GhostWhite
   .BackColor = Color.GhostWhite
   .ForeColor = Color.MidnightBlue
   .GridLineColor = Color.RoyalBlue
   .HeaderBackColor = Color.MidnightBlue
   .HeaderFont = New Font("Tahoma", 8.0!, FontStyle.Bold)
   .HeaderForeColor = Color.Lavender
   .SelectionBackColor = Color.Teal
   .SelectionForeColor = Color.PaleGreen
   .MappingName = PRODUCT_TABLE_NAME
   .PreferredColumnWidth = 125
   .PreferredRowHeight = 15
End With
grdProducts.TableStyles.Add
   (grdTableStyle1)

More Stories By Bruce Armstrong

Bruce Armstrong is a development lead with Integrated Data Services (www.get-integrated.com). A charter member of TeamSybase, he has been using PowerBuilder since version 1.0.B. He was a contributing author to SYS-CON's PowerBuilder 4.0 Secrets of the Masters and the editor of SAMs' PowerBuilder 9: Advanced Client/Server Development.

Comments (11) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
monkfish 11/27/08 08:48:36 AM EST

thanks for the information. betsson iddaa

SohbetGor 11/17/08 09:42:36 AM EST

thanks you...

Sohbet

Qarisma 11/05/08 05:54:22 PM EST

But real Güzeş Site head turn before such excellent Sitelent see

_______________
evden eve nakliyat Sohbet

alvin 07/23/08 08:39:54 PM EDT

how can i change the highlight color of selected row? the default is blue which looks heavy.
thanks

Bruce Armstrong 12/10/07 12:27:42 PM EST

I'd suggest posting your question in Sybase's DataWindow.Net forum.

http://www.sybase.com/detail?id=1031119

It would be much easier to address there.

Praveen 12/10/07 02:02:28 AM EST

Sir ,

We are using Datawindow.net 2.0[Trail] in VS2005 with ASP.Net 2.0 & C#.Net . Using WebDatawindow.net in ASP.Net data retrieving and also
data interting are so smoth . We using connection ADO.net & ASP.Net security trust level default security level ( full trust level )

For security problem most of developer suggests that 'medium trust'and also our webserver support only medium trust.So we are changing Security policy to 'medium'.
( In %windir%\Microsoft.NET\Framework\v2.0.50727\CONFIG\Web.Config
to change
to
)

***********Then I am facing a crucial problem ************
Required permissions cannot be acquired.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Security.Policy.PolicyException: Required permissions cannot be acquired.

How can overcome to in this problem . If you have any solution ... pls forward me ...

Bruce Armstrong 11/14/07 07:09:07 AM EST

I'd suggest posting your question in Sybase's DataWindow.Net forum:

http://www.sybase.com/detail?id=1031119

It would be much easier to address there.

Atif Riaz 11/14/07 01:51:39 AM EST

Hey this is atif i have read your articles they were really help full. what i am trying is that i am using data window 2.0 in Dotnet now i want any CSS file like we do it for html or asp pages i want to define CSS file from where i can formate the report made in Data Window automatically. I need your help?

Bruce Armstrong 02/07/06 03:58:48 PM EST

If you can't find it here, check the Sybase CodeXchange site. I loaded it there as well:

http://datawindownet.codexchange.sybase.com/servlets/ProjectDocumentList...

Mike 02/07/06 02:58:03 PM EST

Where is an arcticle code?

SYS-CON Australia News Desk 02/03/06 01:45:59 PM EST

In this article, we're going to look at how DataWindow.NET technology is a simpler but more powerful way of formatting data in the presentation layer. We'll be taking a sample application provided by Microsoft for .NET and implementing it using DataWindow.NET technology.

@ThingsExpo Stories
Your homes and cars can be automated and self-serviced. Why can't your storage? From simply asking questions to analyze and troubleshoot your infrastructure, to provisioning storage with snapshots, recovery and replication, your wildest sci-fi dream has come true. In his session at @DevOpsSummit at 20th Cloud Expo, Dan Florea, Director of Product Management at Tintri, will provide a ChatOps demo where you can talk to your storage and manage it from anywhere, through Slack and similar services ...
SYS-CON Events announced today that Ocean9will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Ocean9 provides cloud services for Backup, Disaster Recovery (DRaaS) and instant Innovation, and redefines enterprise infrastructure with its cloud native subscription offerings for mission critical SAP workloads.
The taxi industry never saw Uber coming. Startups are a threat to incumbents like never before, and a major enabler for startups is that they are instantly “cloud ready.” If innovation moves at the pace of IT, then your company is in trouble. Why? Because your data center will not keep up with frenetic pace AWS, Microsoft and Google are rolling out new capabilities In his session at 20th Cloud Expo, Don Browning, VP of Cloud Architecture at Turner, will posit that disruption is inevitable for c...
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
SYS-CON Events announced today that Conference Guru has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. A valuable conference experience generates new contacts, sales leads, potential strategic partners and potential investors; helps gather competitive intelligence and even provides inspiration for new products and services. Conference Guru works with conference organizers to pass great dea...
SYS-CON Events announced today that Technologic Systems Inc., an embedded systems solutions company, will exhibit at SYS-CON's @ThingsExpo, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Technologic Systems is an embedded systems company with headquarters in Fountain Hills, Arizona. They have been in business for 32 years, helping more than 8,000 OEM customers and building over a hundred COTS products that have never been discontinued. Technologic Systems’ pr...
SYS-CON Events announced today that CA Technologies has been named “Platinum Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY, and the 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business – from apparel to energy – is being rewritten by software. From ...
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend @CloudExpo | @ThingsExpo, June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA. Learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
SYS-CON Events announced today that Loom Systems will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Founded in 2015, Loom Systems delivers an advanced AI solution to predict and prevent problems in the digital business. Loom stands alone in the industry as an AI analysis platform requiring no prior math knowledge from operators, leveraging the existing staff to succeed in the digital era. With offices in S...
SYS-CON Events announced today that Interoute, owner-operator of one of Europe's largest networks and a global cloud services platform, has been named “Bronze Sponsor” of SYS-CON's 20th Cloud Expo, which will take place on June 6-8, 2017 at the Javits Center in New York, New York. Interoute is the owner-operator of one of Europe's largest networks and a global cloud services platform which encompasses 12 data centers, 14 virtual data centers and 31 colocation centers, with connections to 195 add...
SYS-CON Events announced today that T-Mobile will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. As America's Un-carrier, T-Mobile US, Inc., is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences to 67.4 million customers who are unwilling to compromise on ...
In his session at @ThingsExpo, Eric Lachapelle, CEO of the Professional Evaluation and Certification Board (PECB), will provide an overview of various initiatives to certifiy the security of connected devices and future trends in ensuring public trust of IoT. Eric Lachapelle is the Chief Executive Officer of the Professional Evaluation and Certification Board (PECB), an international certification body. His role is to help companies and individuals to achieve professional, accredited and worldw...
SYS-CON Events announced today that Infranics will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Since 2000, Infranics has developed SysMaster Suite, which is required for the stable and efficient management of ICT infrastructure. The ICT management solution developed and provided by Infranics continues to add intelligence to the ICT infrastructure through the IMC (Infra Management Cycle) based on mathemat...
SYS-CON Events announced today that SD Times | BZ Media has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. BZ Media LLC is a high-tech media company that produces technical conferences and expositions, and publishes a magazine, newsletters and websites in the software development, SharePoint, mobile development and commercial UAV markets.
SYS-CON Events announced today that Cloudistics, an on-premises cloud computing company, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Cloudistics delivers a complete public cloud experience with composable on-premises infrastructures to medium and large enterprises. Its software-defined technology natively converges network, storage, compute, virtualization, and management into a ...
Now that the world has connected “things,” we need to build these devices as truly intelligent in order to create instantaneous and precise results. This means you have to do as much of the processing at the point of entry as you can: at the edge. The killer use cases for IoT are becoming manifest through AI engines on edge devices. An autonomous car has this dual edge/cloud analytics model, producing precise, real-time results. In his session at @ThingsExpo, John Crupi, Vice President and Eng...
SYS-CON Events announced today that HTBase will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. HTBase (Gartner 2016 Cool Vendor) delivers a Composable IT infrastructure solution architected for agility and increased efficiency. It turns compute, storage, and fabric into fluid pools of resources that are easily composed and re-composed to meet each application’s needs. With HTBase, companies can quickly prov...
There are 66 million network cameras capturing terabytes of data. How did factories in Japan improve physical security at the facilities and improve employee productivity? Edge Computing reduces possible kilobytes of data collected per second to only a few kilobytes of data transmitted to the public cloud every day. Data is aggregated and analyzed close to sensors so only intelligent results need to be transmitted to the cloud. Non-essential data is recycled to optimize storage.
"I think that everyone recognizes that for IoT to really realize its full potential and value that it is about creating ecosystems and marketplaces and that no single vendor is able to support what is required," explained Esmeralda Swartz, VP, Marketing Enterprise and Cloud at Ericsson, in this SYS-CON.tv interview at @ThingsExpo, held June 7-9, 2016, at the Javits Center in New York City, NY.