編集

次の方法で共有


TimeSpanMinutesConverter.ConvertFrom Method

Definition

Converts a String to a TimeSpan.

public:
 override System::Object ^ ConvertFrom(System::ComponentModel::ITypeDescriptorContext ^ ctx, System::Globalization::CultureInfo ^ ci, System::Object ^ data);
public override object ConvertFrom (System.ComponentModel.ITypeDescriptorContext ctx, System.Globalization.CultureInfo ci, object data);
override this.ConvertFrom : System.ComponentModel.ITypeDescriptorContext * System.Globalization.CultureInfo * obj -> obj
Public Overrides Function ConvertFrom (ctx As ITypeDescriptorContext, ci As CultureInfo, data As Object) As Object

Parameters

ctx
ITypeDescriptorContext

The ITypeDescriptorContext object used for type conversions.

ci
CultureInfo

The CultureInfo object used during conversion.

data
Object

The String object to convert.

Returns

The TimeSpan representing the data parameter in minutes.

Examples

The following code example shows how to customize the ConvertFrom method.

public override object ConvertFrom(
    ITypeDescriptorContext ctx, CultureInfo ci, object data)
{

    long min = long.Parse((string)data,
        CultureInfo.InvariantCulture);

    return TimeSpan.FromMinutes((double)min);
}
Public Overrides Function ConvertFrom( _
ByVal ctx As ITypeDescriptorContext, _
ByVal ci As CultureInfo, ByVal data As Object) As Object

    Dim min As Long = _
    Long.Parse(CStr(data), CultureInfo.InvariantCulture)

    Return TimeSpan.FromMinutes(System.Convert.ToDouble(min))

End Function 'ConvertFrom

Remarks

The system uses the ConvertFrom method when reading from a configuration file to convert a String value to TimeSpan.

Applies to