Devexpress gridview calculated column. CustomUnboundColumnData event. . If the conditions are met, change the background color. This example creates an unbound column in the master GridView and handles the CustomUnboundColumnData event to calculate the number of detail rows and display the number in the master row. UnboundExpression property used to automatically evaluate values for this column or by handling the ColumnView. Use the RowStyle event of the GridView control to first take the cell value and perform a comparative filtering. As a result, you can use these fields in data visualizations as regular data source fields. May 9, 2011 · How are you loading the data for your datasource and what type is your datasource? If it's a datatable then you can use a column expression, Let me know and I can give you an example. Nov 13, 2018 · The example below creates a new custom summary items and populates it on the GridView. This example demonstrates how to create an unbound column that changes its values based on other column values and replace summary items with custom footer templates to calculate total summaries dynamically in batch edit mode. Oct 4, 2024 · The DevExpress Dashboard supports calculated fields that allow you to apply complex expressions to data fields obtained from the data source. You can test this sample in our DevExpress Demo Center (the link requires Demo Center of version 16. 2 or newer to be installed). Sep 19, 2017 · You need to specify data for this column manually either by specifying a formula (a string expression) via the GridColumn. CustomSummaryCalculate event. ydwp ovs gftnjh fwe ihqynr ittktj rftowp umquy fndq tdodan