/// <summary>
/// Read the property with the specified <paramref name="name"/>. If the property does not exists, This function returns <paramref name="defaultValue"/>.
/// </summary>
/// <param name="image">The <see cref="OpenSlideImage"/> object.</param>
/// <param name="name">The property name.</param>
/// <param name="defaultValue">The value returned when the specified property does not exists.</param>
/// <returns>The value of the property or <paramref name="defaultValue"/>.</returns>
public static string?GetProperty(this OpenSlideImage image, string name, string?defaultValue)
{
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
if (!image.TryGetProperty(name, out string?value))
{
return(defaultValue);
}
return(value);
}
/// <summary>
/// Read the property with the specified <paramref name="name"/> and parse it as a <see cref="int"/> value. If the property does not exists or can not be parsed as <see cref="int"/>, This function returns <paramref name="defaultValue"/>.
/// </summary>
/// <param name="image">The <see cref="OpenSlideImage"/> object.</param>
/// <param name="name">The property name.</param>
/// <param name="defaultValue">The default value.</param>
/// <returns>The value of the property or <paramref name="defaultValue"/>.</returns>
public static int GetProperty(this OpenSlideImage image, string name, int defaultValue)
{
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
if (!image.TryGetProperty(name, out string?value))
{
return(defaultValue);
}
if (!int.TryParse(value, out var result))
{
return(defaultValue);
}
return(result);
}