Nullable<T>.ToString Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns the text representation of the value of the current Nullable<T> object.
Assembly: mscorlib (in mscorlib.dll)
Return Value
Type: System.StringThe text representation of the value of the current Nullable<T> object if the HasValue property is true, or an empty string ("") if the HasValue property is false.
The ToString property returns the string yielded by calling the ToString property of the object returned by the Value property.
The following code example displays the value of the current Nullable<T> object.
// This code example demonstrates the // Nullable<T>.ToString method. using System; class Example { public static void Demo(System.Windows.Controls.TextBlock outputBlock) { DateTime? nullableDate; // Display the current date and time. nullableDate = DateTime.Now; Display(outputBlock, "1)", nullableDate); // Assign null (Nothing in Visual Basic) to nullableDate, then // display its value. nullableDate = null; Display(outputBlock, "2)", nullableDate); } // Display the text representation of a nullable DateTime. public static void Display(System.Windows.Controls.TextBlock outputBlock, string title, DateTime? dspDT) { string msg = dspDT.ToString(); outputBlock.Text += String.Format("{0} ", title); if (String.IsNullOrEmpty(msg)) outputBlock.Text += "The nullable DateTime has no defined value." + "\n"; else outputBlock.Text += String.Format("The current date and time is {0}.", msg) + "\n"; } } /* This code example produces the following results: 1) The current date and time is 4/19/2005 8:28:14 PM. 2) The nullable DateTime has no defined value. */
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