editItem

Method which switches the table row passed as an argument or the row corresponding to the index passed as an argument in edit mode.

editItem(gridItem) or editItem(index)
gridItem HTML row object -
The row that will be switched in edit mode.
index Integer The row corresponding to the index will be switched in edit mode.

Example:

function EditFirstItem() {
    var masterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
    masterTable.editItem(masterTable.get_dataItems()[0].get_element());
}  
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