Collapsible panel in gridview fill in the columns

An add-on feature in the gridview with collapsible panel that shows the multiple records out of the master id of the row. The gridview sample will show in the excel spreadsheet, and once the column category is the word 'multiple', it allows to be clicked to view the multiple rows from collapsible panel. The columns 'Description', 'Detail', 'Total' will be filled with data instead of the collapsible panel shows in the column category and enlarge it(not this way).

ASP

ID Проекту: #3790661

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