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fileformat-cells
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Merge pull request #12 from fahadadeel/main
Feature: Add Advanced ValidationRule Support in Worksheet and Range Classes
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‎FileFormat.Cells/Range.cs‎

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@@ -163,6 +163,19 @@ public void AddDropdownListValidation(string[] options)
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}
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}
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public void ApplyValidation(ValidationRule rule)
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{
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// Iterate over all cells in the range and apply the validation rule
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for (uint row = StartRowIndex; row <= EndRowIndex; row++)
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{
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for (uint column = StartColumnIndex; column <= EndColumnIndex; column++)
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{
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var cellReference = $"{ColumnIndexToLetter(column)}{row}";
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_worksheet.ApplyValidation(cellReference, rule);
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}
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}
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}
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private static string ColumnIndexToLetter(uint columnIndex)

‎FileFormat.Cells/ValidationRule.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Xml;
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namespace FileFormat.Cells
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{
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/// <summary>
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/// Specifies the types of validation that can be applied to a cell or range of cells.
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/// </summary>
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public enum ValidationType
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{
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/// <summary>Specifies a list validation type where cell value must be one of a predefined list.</summary>
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List,
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/// <summary>Specifies a date validation type where cell value must be a date within a specified range.</summary>
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Date,
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/// <summary>Specifies a whole number validation type where cell value must be a whole number within a specified range.</summary>
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WholeNumber,
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/// <summary>Specifies a decimal number validation type where cell value must be a decimal number within a specified range.</summary>
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Decimal,
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/// <summary>Specifies a text length validation type where the length of the cell text must be within a specified range.</summary>
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TextLength,
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/// <summary>Specifies a custom formula validation type where cell value must satisfy a custom formula.</summary>
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CustomFormula
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}
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/// <summary>
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/// Represents a validation rule that can be applied to a cell or range of cells.
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/// </summary>
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public class ValidationRule
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{
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/// <summary>Gets or sets the type of validation.</summary>
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public ValidationType Type { get; set; }
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/// <summary>Gets or sets the list of options for list validation.</summary>
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public string[] Options { get; set; }
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/// <summary>Gets or sets the minimum value for numeric or text length validation.</summary>
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public double? MinValue { get; set; }
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/// <summary>Gets or sets the maximum value for numeric or text length validation.</summary>
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public double? MaxValue { get; set; }
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/// <summary>Gets or sets the custom formula for custom formula validation.</summary>
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public string CustomFormula { get; set; }
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/// <summary>Gets or sets the title of the error dialog that appears when validation fails.</summary>
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public string ErrorTitle { get; set; } = "Invalid Input";
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/// <summary>Gets or sets the error message displayed when validation fails.</summary>
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public string ErrorMessage { get; set; } = "The value entered is invalid.";
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/// <summary>
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/// Initializes a new instance of the <see cref="ValidationRule"/> class for list validation.
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/// </summary>
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/// <param name="options">The options for the list validation.</param>
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public ValidationRule(string[] options)
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{
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Type = ValidationType.List;
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Options = options;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="ValidationRule"/> class for numeric (whole number, decimal) or text length validations.
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/// </summary>
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/// <param name="type">The type of validation (whole number, decimal, text length).</param>
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/// <param name="minValue">The minimum value for the validation.</param>
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/// <param name="maxValue">The maximum value for the validation.</param>
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/// <exception cref="ArgumentException">Thrown if the type is not numeric or text length.</exception>
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// Constructor for numeric (decimal, whole number) and text length validation rules
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public ValidationRule(ValidationType type, double minValue, double maxValue)
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{
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if (type != ValidationType.WholeNumber && type != ValidationType.Decimal && type != ValidationType.TextLength)
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{
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throw new ArgumentException("This constructor is only for numeric and text length validations.");
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}
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Type = type;
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MinValue = minValue;
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MaxValue = maxValue;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="ValidationRule"/> class for custom formula validation.
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/// </summary>
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/// <param name="customFormula">The custom formula for the validation.</param>
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public ValidationRule(string customFormula)
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{
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Type = ValidationType.CustomFormula;
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CustomFormula = customFormula;
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}
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// Optional: You can add more constructors or methods to initialize different types of validation rules
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}
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}

‎FileFormat.Cells/Worksheet.cs‎

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Original file line numberDiff line numberDiff line change
@@ -663,6 +663,144 @@ public void AddDropdownListValidation(string cellReference, string[] options)
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dataValidations.AppendChild(dataValidation);
664664
}
665665

666+
public void ApplyValidation(string cellReference, ValidationRule rule)
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{
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DataValidation dataValidation = CreateDataValidation(cellReference, rule);
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AddDataValidation(dataValidation);
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}
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public ValidationRule GetValidationRule(string cellReference)
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{
674+
if (_worksheetPart == null)
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{
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throw new InvalidOperationException("Worksheet part is not loaded.");
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}
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var dataValidations = _worksheetPart.Worksheet.Descendants<DataValidation>();
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foreach (var dataValidation in dataValidations)
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{
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if (dataValidation.SequenceOfReferences.InnerText.Contains(cellReference))
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{
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return CreateValidationRuleFromDataValidation(dataValidation);
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}
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}
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return null; // No validation rule found for the specified cell
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}
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private ValidationRule CreateValidationRuleFromDataValidation(DataValidation dataValidation)
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{
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// Determine the type of validation
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ValidationType type = DetermineValidationType(dataValidation.Type);
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// Depending on the type, create a corresponding ValidationRule
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switch (type)
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{
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case ValidationType.List:
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// Assuming list validations use a comma-separated list of options in Formula1
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var options = dataValidation.Formula1.Text.Split(',');
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return new ValidationRule(options);
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case ValidationType.CustomFormula:
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return new ValidationRule(dataValidation.Formula1.Text);
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// Add cases for other validation types (e.g., Date, WholeNumber, Decimal, TextLength)
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// ...
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default:
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throw new NotImplementedException("Validation type not supported.");
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}
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}
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private ValidationType DetermineValidationType(DataValidationValues openXmlType)
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{
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// Map the OpenXML DataValidationValues to your ValidationType enum
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// This mapping depends on how closely your ValidationType enum aligns with OpenXML's types
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// Example mapping:
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switch (openXmlType)
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{
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case DataValidationValues.List:
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return ValidationType.List;
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case DataValidationValues.Custom:
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return ValidationType.CustomFormula;
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// Map other types...
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default:
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throw new NotImplementedException("Validation type not supported.");
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}
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}
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private DataValidation CreateDataValidation(string cellReference, ValidationRule rule)
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{
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DataValidation dataValidation = new DataValidation
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{
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SequenceOfReferences = new ListValue<StringValue> { InnerText = cellReference },
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ShowErrorMessage = true,
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ErrorTitle = rule.ErrorTitle,
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Error = rule.ErrorMessage
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};
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switch (rule.Type)
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{
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case ValidationType.List:
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dataValidation.Type = DataValidationValues.List;
749+
dataValidation.Formula1 = new Formula1($"\"{string.Join(",", rule.Options)}\"");
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break;
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case ValidationType.Date:
753+
dataValidation.Type = DataValidationValues.Date;
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dataValidation.Operator = DataValidationOperatorValues.Between;
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dataValidation.Formula1 = new Formula1(rule.MinValue.HasValue ? rule.MinValue.Value.ToString() : "0");
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dataValidation.Formula2 = new Formula2(rule.MaxValue.HasValue ? rule.MaxValue.Value.ToString() : "0");
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break;
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case ValidationType.WholeNumber:
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dataValidation.Type = DataValidationValues.Whole;
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dataValidation.Operator = DataValidationOperatorValues.Between;
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dataValidation.Formula1 = new Formula1(rule.MinValue.HasValue ? rule.MinValue.Value.ToString() : "0");
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dataValidation.Formula2 = new Formula2(rule.MaxValue.HasValue ? rule.MaxValue.Value.ToString() : "0");
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break;
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case ValidationType.Decimal:
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dataValidation.Type = DataValidationValues.Decimal;
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dataValidation.Operator = DataValidationOperatorValues.Between;
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dataValidation.Formula1 = new Formula1(rule.MinValue.HasValue ? rule.MinValue.Value.ToString() : "0");
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dataValidation.Formula2 = new Formula2(rule.MaxValue.HasValue ? rule.MaxValue.Value.ToString() : "0");
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break;
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case ValidationType.TextLength:
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dataValidation.Type = DataValidationValues.TextLength;
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dataValidation.Operator = DataValidationOperatorValues.Between;
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dataValidation.Formula1 = new Formula1(rule.MinValue.HasValue ? rule.MinValue.Value.ToString() : "0");
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dataValidation.Formula2 = new Formula2(rule.MaxValue.HasValue ? rule.MaxValue.Value.ToString() : "0");
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break;
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case ValidationType.CustomFormula:
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dataValidation.Type = DataValidationValues.Custom;
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dataValidation.Formula1 = new Formula1(rule.CustomFormula);
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break;
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default:
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throw new ArgumentException("Unsupported validation type.");
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}
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return dataValidation;
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}
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private void AddDataValidation(DataValidation dataValidation)
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{
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var dataValidations = _worksheetPart.Worksheet.GetFirstChild<DataValidations>();
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if (dataValidations == null)
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{
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dataValidations = new DataValidations();
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_worksheetPart.Worksheet.AppendChild(dataValidations);
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}
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dataValidations.AppendChild(dataValidation);
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}
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667805
private (uint row, uint column) ParseCellReference(string cellReference)
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{

‎FileFormat.Cells_Tests/UnitTest1.cs‎

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@@ -330,8 +330,78 @@ public void Test_ExtractImages()
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331331
}
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[TestMethod]
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public void ListValidationRule_CreatesCorrectType()
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{
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var options = new[] { "Option1", "Option2", "Option3" };
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var rule = new ValidationRule(options);
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Assert.AreEqual(ValidationType.List, rule.Type);
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CollectionAssert.AreEqual(options, rule.Options);
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}
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[TestMethod]
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public void NumericValidationRule_CreatesCorrectTypeAndValues()
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{
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var minValue = 10.0;
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var maxValue = 100.0;
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var rule = new ValidationRule(ValidationType.Decimal, minValue, maxValue);
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Assert.AreEqual(ValidationType.Decimal, rule.Type);
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Assert.AreEqual(minValue, rule.MinValue);
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Assert.AreEqual(maxValue, rule.MaxValue);
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}
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[TestMethod]
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public void CustomFormulaValidationRule_CreatesCorrectFormula()
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{
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var formula = "=A1>0";
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var rule = new ValidationRule(formula);
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Assert.AreEqual(ValidationType.CustomFormula, rule.Type);
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Assert.AreEqual(formula, rule.CustomFormula);
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}
333364

365+
[TestMethod]
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public void ApplyListValidation_And_Verify()
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{
368+
var expectedOptions = new[] { "Apple", "Banana", "Orange" };
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using (var workbook = new Workbook())
370+
{
371+
var worksheet = workbook.Worksheets[0];
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// Act: Apply a list validation rule to a cell
374+
var listRule = new ValidationRule(expectedOptions);
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worksheet.ApplyValidation("A1", listRule); // Applying to cell A1
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// Act: Save the workbook
378+
workbook.Save(testFilePath);
379+
}
380+
381+
// Assert: Reopen the workbook and verify the validation rule
382+
using (var workbook = new Workbook(testFilePath))
383+
{
384+
var worksheet = workbook.Worksheets[0];
385+
var retrievedRule = worksheet.GetValidationRule("A1");
386+
387+
Console.WriteLine("Expected Options: " + string.Join(", ", expectedOptions));
388+
Console.WriteLine("Retrieved Options: " + string.Join(", ", retrievedRule.Options));
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// Assert: Check that the retrieved rule matches what was applied
391+
Assert.IsNotNull(retrievedRule, "Validation rule should not be null.");
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393+
Assert.AreEqual(ValidationType.List, retrievedRule.Type, "Validation type should be List.");
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395+
// Verify each option individually
396+
var processedRetrievedOptions = retrievedRule.Options
397+
.Select(option => option.Trim(new char[] { ' ', '"' }))
398+
.ToArray();
399+
400+
CollectionAssert.AreEqual(expectedOptions, processedRetrievedOptions, "Validation options do not match.");
401+
}
402+
}
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335405
[TestCleanup]
336406
public void Cleanup()
337407
{

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