Multi-column mode

Multi-column mode in TDBVertGridEh

By default, TDBVertGridEh displays one column of data, but using the DataColParams.VisibleColCount and DataColParams.ColWidth properties you can configure the grid to display multiple columns in the Data section.

By assigning values to the TDBVertGridEh.DataColParams.VisibleColCount and TDBVertGridEh.DataColParams.ColWidth properties, you can set different display modes for columns and column widths.

Mode 1: DataColParams.VisibleColCount = 1, DataColParams.ColWidth = 0

Default mode. As before, the grid displays one column of data. The column width adjusts to take up all the free space in the visible area of the grid.

Mode 2: DataColParams.VisibleColCount = 1, DataColParams.ColWidth > 0

The grid displays one column of data. The column width is set by the width specified in the DataColParams.ColWidth property.

Mode 3: DataColParams.VisibleColCount = 0, DataColParams.ColWidth = 0

The number of grid columns is equal to the number of records in the DataSet. The width of the columns adjusts to take up all the free space in the visible area of the grid.

Mode 4: DataColParams.VisibleColCount = 0, DataColParams.ColWidth > 0

The number of columns is formed automatically depending on the amount of data in the DataSet and the type of the DataSet. For TMemTableEh, the number of columns is the same as the number of records. For other types of DataSets, the number of columns is determined by the number of visible columns in the grid visible area. The width of the columns is set by the width specified in the DataColParams.ColWidth property.

Mode 5: DataColParams.VisibleColCount > 1, и DataColParams.ColWidth = 0

The number of columns is set by the VisibleColCount parameter. The width of the columns is adjusted to take up all the free space in the visible area of the grid.

For an example of using the DataColParams.VisibleColCount and DataColParams.ColWidth properties, see the Demo project in the Demos\DBVertGridEh.MultiColumnMode\ folder.