To implement formulas on your form, drag the UltraCalcManager component from the Toolbox onto it. I have attached a sample windows forms project which has been set up with UltraGrid and UltraCalcManager. The data table is a set of products, each product having unit price and quantity. The values in the ‘Total’ column are calculated by multiplying the product’s unit price by its quantity. I have done this in code by setting the ‘Total’ column’s property Formula.

To sum up all the values in the ‘Total’ column you should create a calculated summary. This is achieved by adding a new summary to the band Summaries collection. In my sample project this is done in code. However, the same can be achieved using the grid designer, under the node: "Band and Column Settings > Band[0]". You will find the Summaries collection in the properties grid on the right.