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AJAX
Wednesday, May 4, 2011PrintSubscribe
ASP.NET 3.5 Membership, SQL Anywhere, DataViewLookup

The following features and bug fixes are included in this release of Code On Time web application generator:

  • Enhancements to Tab and Enter key handling in Data Sheet view when the focus is in the last column. Pressing either one of these keys in edit mode will post the record and advance to the next row. If the row is in “new” mode then the keys will post the new row and start another new row.
  • Support for Sybase SQL Anywhere is now incorporated in the web application generator. Try the link even if you are not developing with SQL Anywhere. The post showcases several cool features of web applications created with Code On Time.
  • Export to CSV has been enhanced to include the utf-8 signature in the data stream. This ensures that Microsoft Excel will understand extended symbols including multi-byte characters. You can export data as CSV file if you select Actions|Download option above any grid or data sheet view.
  • Globalization settings in web.config of generated applications are now including utf-8 file encoding attribute.
  • Data Format String is now exposed in Designer in the list of fields of a data controller.
  • Recent releases have are based on the April 2011 release of Ajax Control Toolkit. The new toolkit has broken membership functionality in ASP.NET 3.5 applications. Login / logout links were not displayed. The new releases fixes this problem.
  • Component  aquarium:DataViewLookup has been fixed and works correctly. You can use this component as a replacement for standard ASP.NET “list” controls in custom forms. The component  will render a lookup input control with all advanced features available in integrated lookups. Read about it at /blog/2009/04/objectdatasource-vs-controllerdatasourc.html under section “Filtering”.

Support for capturing of extended properties in file upload / download has been postponed until 5/7/2011. The next update will also include several improvements to Data Sheet view and enhancements to time zone handling.

Tuesday, May 3, 2011PrintSubscribe
SQL Anywhere Web Applications in Minutes

Code On Time announces support for SQL Anywhere 12.  Generate powerful user-friendly line-of-business web applications straight from SQL Anywhere 12 databases with Microsoft Office look and feel. The following instructions are written with an assumption that you have installed SQL Anywhere software on your computer.

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INSTALLATION

Download the code generator at http://codeontime.com/download.aspx. The installation program will also install Microsoft.NET 4.0, IIS Express 7.5, and Microsoft Report Viewer 2010. These components are available at no cost and fully supported by Microsoft.

The code generator will use IIS Express to run generated web applications on your computer. It can be installed alongside the production version of IIS available in several versions of Microsoft Windows.

The report viewer component will render will render dynamically created reports in PDF, Word, Excel, and TIFF formats.

Follow installation instructions and click on Code OnTime Generator shortcut created on the desktop after installation.

GENERATING AN APPLICATION

Start new Web Site Factory project and enter SQL Anywhere Demo as the project name.

Click Next until your reach Data Connection page in the project wizard.

Select SQL Anywhere option in data provider and enter the following connection string.

userid=dba;password=sql;

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Enable dynamic and static reporting in your project.

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Click next and you will see Authentication and Membership page of the project wizard.

Follow instructions at /blog/2011/05/sql-anywhere-membership-configuration.html to configure ASP.NET Membership in your database.

Select the check box titled “Enable support for ASP.NET Membership with membership bar user manager”.

Select the check box “Membership will use a standalone database that already exist”. Select SQL Anywhere option in Provider Name.

Enter the same connection string

userid=dba;password=sql;

You can also point the connection string to another SQL Anywhere database to store ASP.NET membership data that can be shared between multiple projects. Make sure that configuration of the database has been performed prior to generating the application.

Click Next several times until your see a list of data controllers created from your database.

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Now you are ready to generate an application and see it in action.

Click next and wait for the application to be displayed in your web browser. If the browser page comes out blank then simply give it a few moments and hit Refresh button. This may happen if your computer is busy and IIS Express is still getting ready to start the generated web application.

You should see the screen similar to the one in the picture.

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USING GENERATED WEB APPLICATION

Make sure to keep the code generator running. Code On Time will automatically shut down the started IIS Express instances if you close the web application generator window.

Sign-in using one of the user accounts automatically created by application.  We suggest that you sign in as admin / admin123% . This user account is authorized to see the membership manager.

Click around and play with the generated pages.

Here is the screenshot of the Customers page if you select a customer record. Master record is shown in edit mode with the detail records tabbed at the bottom. Several other standard page layout are available. You can use the project Designer to create custom layouts. Click on the link to see an example of a custom Order Form.

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Note that detail records can be edited in modal forms if you are using a commercial edition of the web application generator.

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Here is the screen shot of the Products page display in Data Sheet view that allows spreadsheet-style editing of data. Data Sheet view does not require any external components and is available in Premium and Unlimited editions of Code On Time.

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Select Report | Adobe PDF option from the action bar of any grid or data sheet view and take a look at PDF printout of your data with custom filters displayed in the report header.

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Select Actions | View RSS Feed and subscribe to the feed to be notified by your RSS feed reader when new movies with the filtering criteria become available. How needs email anymore?

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Try some cool data analysis features that allow extending your application and data to the end-user desktops enabling safe and efficient data delivery to business users.

Select Actions | Export to Spreadsheet to export data for analysis.

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A prompt will show up to warn you that some data is being downloaded. Internet Explorer 9 and other major browser display a prompt at the bottom of the screen.

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Press Open button to open the file. This will start Microsoft Excel. You will see a warning about potential security concern.

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We are downloading data from our own application – there is no risk involved. Press Enable button to continue.

The data will be downloaded into a new Worksheet. You may be asked to identify yourself. Enter admin/admin123% or any other valid user account registered in the application membership database.

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Select Insert on the ribbon and click PivotTable button.

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Confirm the creation of a data range.

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Now you are good to go. Here is the pivot view of the sales order items that shows distribution of product sales by employees. With a few clicks add a Pivot Chart for added impact.

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Within minutes business users can make sense of their data and have amazing dashboards built in the tool they know best –Microsoft Excel.

The data feed embedded into the spreadsheet is live. Users can save the spreadsheet on the hard drive.

To refresh the data users can open the spreadsheet and select Refresh button on the Data tab of the ribbon.

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Users will be prompted to re-enter the user name and password. The user’s identity will be verified against the database and the data feed will be refreshed.

Conclusion

Within minutes you can turn your SQL Anywhere 12 database into interactive treasure trove of data that can be placed on Internet or Intranet server.

Other available database connectivity options are MySQL, Microsoft SQL Server, and Oracle.

Review code customization techniques at http://codeontime.com/tutorials.aspx to learn how to use application designer to enhance the application and how to write custom business rules if the standard features of the generated application need to be enhanced.

Monday, April 25, 2011PrintSubscribe
Date and Time

Code On Time supports extended date and time shortcuts and allows independent entry of data and time components of a single database table column.

The following screen shot shows the Northwind.dbo.Orders table presented in a Web Site Factory applications generated with Code On Time database web application generator.

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Three “date-time” columns Order Date, Required Date, and Shipped Date are configured with different Data Format String property.

Field Name Data Format String Description
Order Date

d

Standard format string applied to Date Time fields. This is the default value if no data format string is specified. The alternative format is {0:d}
Required Date

g

Date and short time format. The alternative value is {0:g}
Shipped Date

{0:G}

Date and long time format with hours, minutes, and seconds. The alternative value of the data format string is G.

Select any data row and click Edit button. You will see that the time component of the Date-Time fields with “g”, “{0:g}”, “G”, or “{0:G}” data format string is displayed in a separate box. The application in the screen shot is configured with culture and UI culture set to “en-GB”.

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Date and time input boxes support various shortcuts that allow entering the data quickly.

For example, if you type the following value in the designated input then the value will be automatically converted in a legitimate data time format. The result values for “named” samples are calculated on April 25, 2011.

Sample Input Result
280273 Date 28/02/1973
2802 Date 28/02/2011
tuesday Date 26/04/2011
Fri Date 29/04/2011
su Date 01/05/2011
25-apr Date 25/04/2011
28022012 Date 28/02/2012
1:20 Time 01:20
1,15pm Time 13:15

The input conversion is done just-in-time. The conversion code will use the culture settings of the application and will handle shortcuts that work for the application locale.

The same behavior is exhibited in Grid and Data Sheet views.

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End users will surely appreciate the handy shortcuts and a wide range of method of entering date and time field values.

Continue to Data Sheet View