StrokeCollectionConverter.ConvertFrom Method
Definition
Important
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Converts the specified object to a StrokeCollection.
public:
override System::Object ^ ConvertFrom(System::ComponentModel::ITypeDescriptorContext ^ context, System::Globalization::CultureInfo ^ culture, System::Object ^ value);
public override object ConvertFrom (System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value);
override this.ConvertFrom : System.ComponentModel.ITypeDescriptorContext * System.Globalization.CultureInfo * obj -> obj
Public Overrides Function ConvertFrom (context As ITypeDescriptorContext, culture As CultureInfo, value As Object) As Object
Parameters
- context
- ITypeDescriptorContext
An ITypeDescriptorContext that provides a format context.
- culture
- CultureInfo
The CultureInfo to use as the current culture.
Returns
A StrokeCollection converted from value
.
Examples
The following example demonstrates how to convert a base-64, encoded Ink Serialized Format (ISF) string to a StrokeCollection. This assumes that there is an InkPresenter called presenter
.
// The base-64 encoded string that contains ink data
// in ink serialized format (ISF).
string strokesString =
@"AOoFAxBIEEVqGwIAWf9GahsCAFn/GRQyCACAEAIAAABCMwgAgA"
+ "wCAAAAQhWrqtNBq6rTQaVh0MSr+ivFHyEVVFVVVVV1OkBUVVVVVXU6QJ7"
+ "0SZ80DJrAVFVVVVV/pcAKU3yC/gEb+AX/k5Z8PwWBO5KktgJSUAAKjzyC"
+ "wBZYLEoCJLd+Cbti873JlTUvn158doCC/gKb+ApwAJslSywE2ALAAWPPI"
+ "FhKWBKWAKAmwJVglAKACiMjgv3d+8Xi+fHWM2WC0zcm89+NSoL+A5P4Dl"
+ "uNlhFIqpLKAAoaF4L+AhP4CFAWAWCggv4Dc/gNty2yy5SrlKAKIhyC/gI"
+ "b+Ai+JZc2XZOyb46vLQCC/gOL+A5YDNlWFjN3CwAKQFeC/gOr+A7VhUFZ"
+ "KCsS2WTc2SyhKuWVLR3ly2LAXx574ssUgv4Dm/gOcCwEEpUTYSixUsuWy"
+ "gVZ79AQsWGyWUAKLCiC/gQT+BA9SWbllDfGqy3Lcu+OmfH8EIL+BDv4EP"
+ "XLKSpY3lVFhZuVZvKACkFggv4F2/gXlKLFuCVKTcsqUlkoRKBmk8zfFll"
+ "S2ySlACwAgv4Ds/gO+WWWWLBLFllllSksAoSkWG1kSbFu5AoAAAo/YoL+"
+ "Biv4GJJU+P4qSalUBKWdkBYCbm+Nliyk1CVKgCxYNYqC/gQb+BBwO8ABY"
+ "olDz4gAEzaw2AVCUKAsWCooCiAegv4Hw/gfEJe8zUoSgLCC/gNT+A0xM7"
+ "Gdmdliay2VaAo0PoL+B7v4Hx5Yq3lc2xZsseeC3N8aDXjUpWW4UIL+A5P"
+ "4DnhYqAIWFkqpcrLZuJuWqSyxVAovNoL+CJP4IjnlkDvHeSbSVd9FqFlI"
+ "oWAAgv4Dk/gOVc7gbmdyZ1LajFFJmlRKsoAKVXmC/go7+CjdRvredypaK"
+ "myLC7ytZQqFiyWbikAEvfg2pSVKS7liSwWJNsrbi4CC/gQD+A/9M2ACxU"
+ "qKjcVuXKiosCWWKQSyhvKRUUWULCwEmyyu4gA=";
' The base-64 encoded string that contains ink data
' in ink serialized format (ISF).
Private strokesString As String = _
"AOoFAxBIEEVqGwIAWf9GahsCAFn/GRQyCACAEAIAAABCMwgAgA" _
& "wCAAAAQhWrqtNBq6rTQaVh0MSr+ivFHyEVVFVVVVV1OkBUVVVVVXU6QJ7" _
& "0SZ80DJrAVFVVVVV/pcAKU3yC/gEb+AX/k5Z8PwWBO5KktgJSUAAKjzyC" _
& "wBZYLEoCJLd+Cbti873JlTUvn158doCC/gKb+ApwAJslSywE2ALAAWPPI" _
& "FhKWBKWAKAmwJVglAKACiMjgv3d+8Xi+fHWM2WC0zcm89+NSoL+A5P4Dl" _
& "uNlhFIqpLKAAoaF4L+AhP4CFAWAWCggv4Dc/gNty2yy5SrlKAKIhyC/gI" _
& "b+Ai+JZc2XZOyb46vLQCC/gOL+A5YDNlWFjN3CwAKQFeC/gOr+A7VhUFZ" _
& "KCsS2WTc2SyhKuWVLR3ly2LAXx574ssUgv4Dm/gOcCwEEpUTYSixUsuWy" _
& "gVZ79AQsWGyWUAKLCiC/gQT+BA9SWbllDfGqy3Lcu+OmfH8EIL+BDv4EP" _
& "XLKSpY3lVFhZuVZvKACkFggv4F2/gXlKLFuCVKTcsqUlkoRKBmk8zfFll" _
& "S2ySlACwAgv4Ds/gO+WWWWLBLFllllSksAoSkWG1kSbFu5AoAAAo/YoL+" _
& "Biv4GJJU+P4qSalUBKWdkBYCbm+Nliyk1CVKgCxYNYqC/gQb+BBwO8ABY" _
& "olDz4gAEzaw2AVCUKAsWCooCiAegv4Hw/gfEJe8zUoSgLCC/gNT+A0xM7" _
& "Gdmdliay2VaAo0PoL+B7v4Hx5Yq3lc2xZsseeC3N8aDXjUpWW4UIL+A5P" _
& "4DnhYqAIWFkqpcrLZuJuWqSyxVAovNoL+CJP4IjnlkDvHeSbSVd9FqFlI" _
& "oWAAgv4Dk/gOVc7gbmdyZ1LajFFJmlRKsoAKVXmC/go7+CjdRvredypaK" _
& "myLC7ytZQqFiyWbikAEvfg2pSVKS7liSwWJNsrbi4CC/gQD+A/9M2ACxU" _
& "qKjcVuXKiosCWWKQSyhvKRUUWULCwEmyyu4gA="
// Accepts a string that contains ink data in ink
// serialized format (ISF) and converts it into a StrokeCollection.
public void LoadStrokes()
{
StrokeCollectionConverter converter =
new StrokeCollectionConverter();
if (converter.CanConvertFrom(typeof(string)))
{
StrokeCollection newStrokes =
(StrokeCollection)converter.ConvertFrom(null, null, strokesString);
presenter.Strokes.Clear();
presenter.Strokes.Add(newStrokes);
}
}
' Accepts a string that contains ink data in ink
' serialized format (ISF) and converts it into a StrokeCollection.
Public Sub LoadStrokes()
Dim converter As New StrokeCollectionConverter()
If converter.CanConvertFrom(GetType(String)) Then
Dim newStrokes As StrokeCollection
newStrokes = converter.ConvertFrom(Nothing, Nothing, strokesString)
presenter.Strokes.Clear()
presenter.Strokes.Add(newStrokes)
End If
End Sub
Remarks
The ConvertFrom method returns null
if value
is not a String.
Applies to
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