Angular Data Validation

    This topic explains how to configure and set the built-in data validation rules.

    Angular Data Validation Example

    Dependencies

    When setting up the data validation rules you will need to import the rules you want to use.

    import { AnyValueDataValidationRule } from 'igniteui-angular-excel';
import { CustomDataValidationRule } from 'igniteui-angular-excel';
import { DataValidationErrorStyle } from 'igniteui-angular-excel';
import { ListDataValidationRule } from 'igniteui-angular-excel';
import { OneConstraintDataValidationOperator } from 'igniteui-angular-excel';
import { OneConstraintDataValidationRule } from 'igniteui-angular-excel';
import { TwoConstraintDataValidationOperator } from 'igniteui-angular-excel';
import { TwoConstraintDataValidationRule } from 'igniteui-angular-excel';

    Usage

    The following snippet shows how you can setup the data validation rules

    // this validation rule has only input message set
const valRule1 = new AnyValueDataValidationRule();
valRule1.inputMessageTitle = "Hotel room booking form";
valRule1.inputMessageDescription = "Please us the form below to choose your accommodation type";
this.spreadsheet.workbook.worksheets(0).rows(1).cells(0).dataValidationRule = valRule1;
this.spreadsheet.workbook.worksheets(0).rows(1).cells(0).value = "Hotel room booking form";

// this validation rule has a two constraint validation set
const valRule2 = new TwoConstraintDataValidationRule();
valRule2.validationOperator = TwoConstraintDataValidationOperator.Between;
valRule2.setLowerConstraint(1);
valRule2.setUpperConstraint(4);
valRule2.inputMessageTitle = "Adults";
valRule2.inputMessageDescription = "Adults count must be min, 1 and max. 4.";
valRule2.errorMessageTitle = "Adult requirement not met";
valRule2.errorMessageDescription = "There must be between 1 and 4 adults per room.";
valRule2.errorStyle = DataValidationErrorStyle.Information;
this.spreadsheet.workbook.worksheets(0).rows(3).cells(1).dataValidationRule = valRule2;
this.spreadsheet.workbook.worksheets(0).rows(3).cells(1).value = 1;
this.spreadsheet.workbook.worksheets(0).rows(3).cells(0).value = "Adults";

// this validation rule has a custom formula validation set
const valRule3 = new CustomDataValidationRule();
const separator = getLocaleNumberSymbol(window.navigator.language, NumberSymbol.Group);
valRule3.setFormula("=AND((B4+B5)<5 " + separator + " (B4+B5)>0)", null);
valRule3.inputMessageTitle = "Children";
valRule3.inputMessageDescription = "Children and adults cannot be more than 4 per room.";
valRule3.errorMessageTitle = "Room limit exceeded";
valRule3.errorMessageDescription = "The maximum persons per room is 4.";
valRule3.errorStyle = DataValidationErrorStyle.Warning;
this.spreadsheet.workbook.worksheets(0).rows(4).cells(1).dataValidationRule = valRule3;
this.spreadsheet.workbook.worksheets(0).rows(4).cells(1).value = 0;
this.spreadsheet.workbook.worksheets(0).rows(4).cells(0).value = "Children";

// this validation rule has a list of accepted choices validation set
const valRule4 = new ListDataValidationRule();
valRule4.setValues(["FB", "HB", "BB" ]);
valRule4.inputMessageTitle = "Servicing";
valRule4.inputMessageDescription = "Allowed values: FB (Full board - breakfast, lunch, and dinner)" +
", HB (Half board - breakfast and dinner), BB (Bed and breakfast)";
valRule4.errorMessageTitle = "Invalid Option";
valRule4.errorMessageDescription = "Please choose FB, HB, or BB";
valRule4.errorStyle = DataValidationErrorStyle.Stop;
this.spreadsheet.workbook.worksheets(0).rows(5).cells(1).dataValidationRule = valRule4;
this.spreadsheet.workbook.worksheets(0).rows(5).cells(1).value = "FB";
this.spreadsheet.workbook.worksheets(0).rows(5).cells(0).value = "Servicing";

// this validation rule has a single constraint validation set
const valRule5 = new OneConstraintDataValidationRule();
valRule5.inputMessageTitle = "Check In Date";
const checkinDate = new Date();
valRule5.inputMessageDescription = "The hotel operates from" + checkinDate;
valRule5.validationOperator = OneConstraintDataValidationOperator.GreaterThanOrEqualTo;
valRule5.setConstraint(checkinDate);
this.spreadsheet.workbook.worksheets(0).rows(6).cells(1).dataValidationRule = valRule5;
this.spreadsheet.workbook.worksheets(0).rows(6).cells(1).value = checkinDate.toLocaleDateString();
this.spreadsheet.workbook.worksheets(0).rows(6).cells(0).value = "Check In Date";

// this validation rule has a single constraint validation set
const valRule6 = new OneConstraintDataValidationRule();
valRule6.inputMessageTitle = "Check Out Date";
valRule6.inputMessageDescription = "The check out date must be greater than the check in date";
valRule6.validationOperator = OneConstraintDataValidationOperator.GreaterThan;
valRule6.setConstraintFormula("=B7", null);
const checkOutDate = new Date();
checkOutDate.setDate(checkOutDate.getDate() + 1);
this.spreadsheet.workbook.worksheets(0).rows(7).cells(1).dataValidationRule = valRule6;
this.spreadsheet.workbook.worksheets(0).rows(7).cells(1).value = checkOutDate.toLocaleDateString();
this.spreadsheet.workbook.worksheets(0).rows(7).cells(0).value = "Check Out Date";

    API References