Value

Value class

Represents a value in a value list.

public class Value

Constructors

Name	Description
Value()	Initializes a new instance of the Value class.

Properties

Name	Description
DateTimeValue { get; set; }	Gets or sets the actual value if it can be represented as DateTime. Default value is MinValue.
Description { get; set; }	Gets or sets the description of a value.
Duration { get; set; }	Gets or sets the actual value which is used to represent Duration.
Id { get; set; }	Gets or sets the unique identifier of a value across a project.
NumericValue { get; set; }	Gets or sets the actual value which is used to represent number or cost value.
Phonetic { get; set; }	Gets or sets the phonetic information about custom field name.
StringValue { get; set; }	Gets or sets the actual value which is used to represent Text string.
Val { get; set; }	Gets or sets the actual value in internal representation. Prefer using strongly typed properties which are listed below.
ValueGuid { get; }	Gets a GUID which identifies this value among others in the entire project.

Examples

Shows how to read work with lookup values.

var project = new Project(DataDir + "ReadTaskExtendedAttributes.mpp");

// Create an Extended Attribute Definition of Text type
var textLookup = ExtendedAttributeDefinition.CreateLookupTaskDefinition(
    CustomFieldType.Text,
    ExtendedAttributeTask.Text2,
    "Task Towns Name");

// Add lookup values for the extended attribute definition
textLookup.AddLookupValue(new Value { Id = 1, StringValue = "Town1", Description = "This is Town1", Phonetic = "Town One" });
textLookup.AddLookupValue(new Value { Id = 2, StringValue = "Town2", Description = "This is Town2", Phonetic = "Town Two" });

Console.WriteLine("Iterate over text lookup values:");
foreach (var value in textLookup.ValueList)
{
    Console.WriteLine("Id: " + value.Id);
    Console.WriteLine("GUID: " + value.ValueGuid);
    Console.WriteLine("Value: " + value.Val);
    Console.WriteLine("String Value: " + value.StringValue);
    Console.WriteLine("Description: " + value.Description);
    Console.WriteLine("Phonetic: " + value.Phonetic);
    Console.WriteLine();
}

// Create an Extended Attribute Definition of Duration type
var durationLookup = ExtendedAttributeDefinition.CreateLookupTaskDefinition(
    CustomFieldType.Duration,
    ExtendedAttributeTask.Duration1,
    "Custom Durations");

// Add lookup values for the extended attribute definition
durationLookup.AddLookupValue(new Value { Id = 3, Duration = project.GetDuration(4, TimeUnitType.Hour), Description = "4 hours", Phonetic = "Four hours" });
durationLookup.AddLookupValue(new Value { Id = 4, Duration = project.GetDuration(8, TimeUnitType.Hour), Description = "1 day", Phonetic = "One day" });
durationLookup.AddLookupValue(new Value { Id = 5, Duration = project.GetDuration(1, TimeUnitType.Hour), Description = "1 hour", Phonetic = "One hour" });
durationLookup.AddLookupValue(new Value { Id = 6, Duration = project.GetDuration(10, TimeUnitType.Day), Description = "10 days", Phonetic = "Ten days" });

Console.WriteLine("Iterate over duration lookup values:");
foreach (var value in durationLookup.ValueList)
{
    Console.WriteLine("Id: " + value.Id);
    Console.WriteLine("GUID: " + value.ValueGuid);
    Console.WriteLine("Value: " + value.Val);
    Console.WriteLine("Duration: " + value.Duration);
    Console.WriteLine("Description: " + value.Description);
    Console.WriteLine("Phonetic: " + value.Phonetic);
    Console.WriteLine();
}

// Create an Extended Attribute Definition of Date type
var dateLookup = ExtendedAttributeDefinition.CreateLookupTaskDefinition(
    CustomFieldType.Date,
    ExtendedAttributeTask.Date1,
    "Custom Date");
dateLookup.AddLookupValue(new Value { Id = 7, DateTimeValue = new DateTime(2020, 4, 27, 8, 0, 0), Description = "Start Date", Phonetic = "Start Date" });

Console.WriteLine("Iterate over date lookup values:");
foreach (var value in dateLookup.ValueList)
{
    Console.WriteLine("Id: " + value.Id);
    Console.WriteLine("GUID: " + value.ValueGuid);
    Console.WriteLine("Value: " + value.Val);
    Console.WriteLine("DateTime Value: " + value.DateTimeValue);
    Console.WriteLine("Description: " + value.Description);
    Console.WriteLine("Phonetic: " + value.Phonetic);
    Console.WriteLine();
}

// Create an Extended Attribute Definition of Number type
var numericLookup = ExtendedAttributeDefinition.CreateLookupTaskDefinition(
    CustomFieldType.Number,
    ExtendedAttributeTask.Number1,
    "Number of tons");
numericLookup.AddLookupValue(new Value { Id = 8, NumericValue = 10, Description = "10 tons", Phonetic = "Ten tons" });
numericLookup.AddLookupValue(new Value { Id = 9, NumericValue = 20, Description = "20 tons", Phonetic = "Twenty tons" });
numericLookup.AddLookupValue(new Value { Id = 10, NumericValue = 30, Description = "30 tons", Phonetic = "Thirty tons" });

Console.WriteLine("Iterate over numeric lookup values:");
foreach (var value in numericLookup.ValueList)
{
    Console.WriteLine("Id: " + value.Id);
    Console.WriteLine("GUID: " + value.ValueGuid);
    Console.WriteLine("Value: " + value.Val);
    Console.WriteLine("Numeric Value: " + value.NumericValue);
    Console.WriteLine("Description: " + value.Description);
    Console.WriteLine("Phonetic: " + value.Phonetic);
    Console.WriteLine();
}

project.ExtendedAttributes.Add(textLookup);
project.ExtendedAttributes.Add(durationLookup);
project.ExtendedAttributes.Add(dateLookup);
project.ExtendedAttributes.Add(numericLookup);

See Also

• namespace Aspose.Tasks
• assembly Aspose.Tasks