Devexpress gridviewdatacomboboxcolumn demo11/19/2022 Var txt = document.getElementById('TextBox1') For example the ClientValidationFunction: įunction ClientValidate(source, arguments) You must write the validation rules on your own. This validator is not dependent on a single control. Then you can Enable/Disable the validator there.Īnother approach is to use a CustomValidator. The simplest approach is to set the DropDownList's AutoPostBack property to true and handle it's SelectedIndexChanged event. Note : i am using the devexpress gridview with default template. If user selects "A", then rest of the fields should become required fields and if user selects value “B” from the dropdown, then all other fields should become non-mandatory fields. For Example : A dropdown has two values A and B. How to validate the another controls which is based on the values of dropdownlist (combo box). The Callback event receives the selected country from the client and populates the "City" combobox with corresponding items.I am facing a problem for validating the dependency controls. On the server, subscribe to the combobox's Callback event (within a CellEditorInitialize event handler). To update items, handle the ASPxGridView's client-side BatchEditStartEditing event and call the "City" combobox's PerformCallback method with the selected country. Before a user starts editing a value in the “City” column, you need to check and update items for the combobox editor.
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