Download Microsoft SQL Server 2005 developer's guide by Michael Otey PDF
By Michael Otey
Developers will become aware of tips to unharness the entire strength of Microsoft SQL Server 2005 with this developer's consultant by way of best-selling writer, Michael Otey. thoroughly rewritten and reengineered, this ebook will specialise in the recent programming types and should supply readers with the entire info they should produce most advantageous advertisement applications
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NOTE Because the ADO object framework doesn’t provide an OrdinalPosition property like the DAO and RDO frameworks, you must either add additional code to track the current column position manually or use the value of the Field object’s index in the Fields collection. Next, a Do Until loop reads through all the columns in the Recordset object. The Do Until loop continues until the Recordset’s EOF (End of File) property becomes true—which indicates all the rows in the Recordset have been read. Inside the Do Until loop, the grid’s Rows property is incremented to expand the size of the grid for each row read from the Recordset, and the Row property is incremented to move the current position to the new grid row.
If the value is equal, then the Recordset is displayed in forward order and the cursor is positioned to the beginning of the Recordset object using the MoveFirst method. Otherwise, the contents of the Recordset are displayed in reverse order and the cursor is positioned to the last row in the Recordset using the rs Recordset object’s MoveLast method. The next section of code reads the contents of the Recordset object and is essentially the same as the code in the previous DisplayForwardGrid subroutine.
To set the alignment of the current column, the ColAlignment property requires the index of the current grid column. Col property. Next, the column width of each column in the grid is set using the grid’s ColWidth property. The ColWidth property must be assigned a value in twips (one twentieth of a printer’s point); Visual Basic’s TextWidth function is used to return the number of twips required to display the name of each Field object. The correct number of twips is determined by creating a placeholder string using the Field object’s Name property (which contains the name of the column), plus two extra characters (AA) that help to prevent the grid columns from appearing too crowded.