HumanReadableTimeSpanHelper.ParseString Event

Occurs before the specified string is converted to a TimeSpan value.

Namespace: DevExpress.XtraScheduler.Native

Assembly: DevExpress.XtraScheduler.v19.2.Core.dll


public static event TimeSpanStringConvertEventHandler ParseString
Public Shared Event ParseString As TimeSpanStringConvertEventHandler

Event Data

The ParseString event handler receives an argument of the TimeSpanStringConvertEventArgs type. The following properties provide information specific to this event.

Property Description
Handled Gets or sets whether an event was handled, if it was handled the default actions are not required.
StringValue Gets or sets the string used when converting a TimeSpan value to a string or vice versa.
TimeSpanValue Gets or sets the TimeSpan value used when converting a TimeSpan value to a string or vice versa.


Use the HumanReadableTimeSpanHelper.Parse method to convert a string to the TimeSpan value. Handle the ParseString event to implement a custom conversion procedure.


This example demonstrates how to use the HumanReadableTimeSpanHelper instance to implement the custom conversion of a TimeSpan value to a string and vice versa. To do this handle the HumanReadableTimeSpanHelper.ParseString and HumanReadableTimeSpanHelper.ConvertToString events and use the members of the corresponding TimeSpanStringConvertEventArgs object.

using DevExpress.XtraScheduler.Native;
// ...

// Handle the ParseString and ConvertToString events of the HumanReadableTimeSpanHelper.
HumanReadableTimeSpanHelper.ParseString += new TimeSpanStringConvertEventHandler(OnParse);
HumanReadableTimeSpanHelper.ConvertToString += new TimeSpanStringConvertEventHandler(OnToString);

// Custom parsing of a string to a TimeSpan value.
void OnParse(object sender, TimeSpanStringConvertEventArgs e) {
   double val;
   try {
         string number = e.StringValue.Substring(0, e.StringValue.IndexOf(" milliseconds"));
         val = Convert.ToDouble(number);
   catch {
         val = 0;

   e.TimeSpanValue = TimeSpan.FromMilliseconds(val);
   e.Handled = true;

// Custom conversion of a TimeSpan value to a string.
void OnToString(object sender, TimeSpanStringConvertEventArgs e) {
   e.StringValue = e.TimeSpanValue.TotalMilliseconds.ToString() + " milliseconds";
   e.Handled = true;
See Also