Blog: Posts from August, 2008

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Posts from August, 2008
Wednesday, August 20, 2008PrintSubscribe
"With Events" Error When Business Reports Are Enabled

Visual Basic developers were experiencing a code compilation error when generating a Web Form Builder project with business object reports. Three reporting link buttons on the business object gird user controls allow to print the content of the grid with the currently applied data filters in Adobe PDF, Microsoft Excel, and TIFF image format. These buttons were incorrectly referring to the shared event handler.

The problem has been fixed. The generated code now reads as the following:

Protected Sub RenderReportCommand(ByVal e As CommandEventArgs)
        ApplyDataFilter()
        Dim showLines As String = "True"
        If (CType(e.CommandArgument, String) = "Excel") Then
            showLines = "False"
        End If
        ReportUtility.CreateReport(CType(e.CommandArgument, String), "~/Reports/Customers.rdlc", _
            New ReportParameter() {New ReportParameter("ShowLines", showLines)}, _
            SqlDataSource1, GridView1)
    End Sub

    Protected Sub RenderReport1_Command(ByVal sender As Object, _
                                        ByVal e As CommandEventArgs) Handles RenderReport1.Command
        RenderReportCommand(e)
    End Sub

    Protected Sub RenderReport2_Command(ByVal sender As Object, _
                                        ByVal e As CommandEventArgs) Handles RenderReport2.Command
        RenderReportCommand(e)
    End Sub

    Protected Sub RenderReport3_Command(ByVal sender As Object, _
                                        ByVal e As CommandEventArgs) Handles RenderReport3.Command
        RenderReportCommand(e)
    End Sub

This problem has not been affecting Visual C# developers.

If you were experiencing this problem then start CodeOnTime.exe and you will be automatically prompted to download the update. Generate the project with reports and enjoy.

Wednesday, August 20, 2008PrintSubscribe
Alternative Unique Key Fix

Code OnTime Generator is using a collection of queries to interrogate a database schema when any code generator project involving database interaction is generated. File [My Documents]\Code OnTime\Library\_Config \CodeOnTime.ModelMap.xml defines a collection of queries that are used to discover the database metadata. Data provider System.Data.SqlClient  has an entry named PrimaryKeyColumns that was incorrectly determining the primary key columns. The query has been retrieving both primary keys and alternative unique keys. Alternative unique keys should be ignored.

Generated projects were treating fields included in the alternative unique keys as if they were the fields of the primary key.

We have replaced the query with the following:

select kcu.*
from information_schema.key_column_usage kcu 
    inner join information_schema.table_constraints tc on
        kcu.constraint_catalog = tc.constraint_catalog and
        kcu.constraint_schema = tc.constraint_schema and
        kcu.constraint_name = tc.constraint_name 
where 
    tc.constraint_type = 'PRIMARY KEY'

The fix has been deployed. Simply start CodeOnTime.exe and you will be prompted to download the update.

If you do have a database table with any fields included in a UNIQUE INDEX then open you project and proceed to the Database Connection section of your project. There is a link "Click here if your database has changed and you would like to refresh the cached metadata." Click on the link to reset the metadata and generate the project again. The problem will go away.

Monday, August 18, 2008PrintSubscribe
Bug Fixes

Database lookups were incorrectly clearing the selected value in response to a click on eraser icon. The problem has been fixed.

Pager in detail grid views was not displaying a page size menu even if the number of detail records is significant. The problem has been fixed.