corelibraries-devexpress-dot-xtrascheduler-dot-native-d80a6822.md
Provides data for the HumanReadableTimeSpanHelper.ConvertToString and HumanReadableTimeSpanHelper.ParseString events.
Namespace : DevExpress.XtraScheduler.Native
Assembly : DevExpress.XtraScheduler.v25.2.Core.Desktop.dll
NuGet Package : DevExpress.Scheduler.CoreDesktop
public class TimeSpanStringConvertEventArgs :
EventArgs
Public Class TimeSpanStringConvertEventArgs
Inherits EventArgs
TimeSpanStringConvertEventArgs is the data class for the following events:
The TimeSpanStringConvertEventArgs class introduces properties required to implement conversion using the HumanReadableTimeSpanHelper.ConvertToString and HumanReadableTimeSpanHelper.ParseString events. Note, that TimeSpanStringConvertEventArgs objects are automatically created, initialized and passed to the corresponding event handlers.
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;
}
Imports DevExpress.XtraScheduler.Native
' ...
' Handle the ParseString and ConvertToString events of the HumanReadableTimeSpanHelper.
AddHandler HumanReadableTimeSpanHelper.ParseString, AddressOf OnParse
AddHandler HumanReadableTimeSpanHelper.ConvertToString, AddressOf OnToString
' Custom parsing of a string to a TimeSpan value.
Sub OnParse(sender As Object, e As TimeSpanStringConvertEventArgs)
Dim val As Double
Try
Dim number As String = e.StringValue.Substring(0, e.StringValue.IndexOf(" milliseconds"))
val = Convert.ToDouble(number)
Catch
val = 0
End Try
e.TimeSpanValue = TimeSpan.FromMilliseconds(val)
e.Handled = True
End Sub
' Custom conversion of a TimeSpan value to a string.
Sub OnToString(sender As Object, e As TimeSpanStringConvertEventArgs)
e.StringValue = e.TimeSpanValue.TotalMilliseconds.ToString() + " milliseconds"
e.Handled = True
End Sub
Object EventArgs TimeSpanStringConvertEventArgs
See Also