32 lines
956 B
C#
32 lines
956 B
C#
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using System.ComponentModel.DataAnnotations;
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namespace Terminal.Validation;
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public class ValidPathAttribute : ValidationAttribute
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{
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protected override ValidationResult IsValid(object? value, ValidationContext validationContext)
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{
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if (value is string path)
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{
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try
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{
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path = Environment.ExpandEnvironmentVariables(path);
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var info = new FileInfo(path);
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if (info.Exists)
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return ValidationResult.Success!;
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using (var stream = info.Create())
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stream.Close();
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info.Delete();
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return ValidationResult.Success!;
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}
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catch
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{
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return new ValidationResult($"The path '{path}' is not valid.");
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}
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}
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return new ValidationResult($"The path '{value}' is not valid.");
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}
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}
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