/// <include file='doc\FeatureSupport.uex' path='docs/doc[@for="FeatureSupport.GetVersionPresent"]/*' />
/// <devdoc>
/// <para>Gets the version of the specified feature that is available on the system.</para>
/// </devdoc>
public static Version GetVersionPresent(string featureClassName, string featureConstName)
{
object featureId = null;
IFeatureSupport featureSupport = null;
Type c = Type.GetType(featureClassName);
if (c != null)
{
FieldInfo fi = c.GetField(featureConstName);
if (fi != null)
{
featureId = fi.GetValue(null);
}
}
if (featureId != null)
{
featureSupport = (IFeatureSupport)Activator.CreateInstance(c);
if (featureSupport != null)
{
return(featureSupport.GetVersionPresent(featureId));
}
}
return(null);
}
/// <include file='doc\FeatureSupport.uex' path='docs/doc[@for="FeatureSupport.GetVersionPresent"]/*' />
/// <devdoc>
/// <para>Gets the version of the specified feature that is available on the system.</para>
/// </devdoc>
public static Version GetVersionPresent(string featureClassName, string featureConstName)
{
object featureId = null;
IFeatureSupport featureSupport = null;
//APPCOMPAT: If Type.GetType() throws, we want to return
//null to preserve Everett behavior.
Type c = null;
try {
c = Type.GetType(featureClassName);
}
catch (ArgumentException) {}
if (c != null)
{
FieldInfo fi = c.GetField(featureConstName);
if (fi != null)
{
featureId = fi.GetValue(null);
}
}
if (featureId != null)
{
featureSupport = (IFeatureSupport)SecurityUtils.SecureCreateInstance(c);
if (featureSupport != null)
{
return(featureSupport.GetVersionPresent(featureId));
}
}
return(null);
}
public static bool IsPresent(string featureClassName, string featureConstName, Version minimumVersion)
{
object feature = null;
IFeatureSupport support = null;
System.Type c = null;
try
{
c = System.Type.GetType(featureClassName);
}
catch (ArgumentException)
{
}
if (c != null)
{
FieldInfo field = c.GetField(featureConstName);
if (field != null)
{
feature = field.GetValue(null);
}
}
if ((feature != null) && typeof(IFeatureSupport).IsAssignableFrom(c))
{
support = (IFeatureSupport)System.Windows.Forms.SecurityUtils.SecureCreateInstance(c);
if (support != null)
{
return(support.IsPresent(feature, minimumVersion));
}
}
return(false);
}
public static Version GetVersionPresent(string featureClassName, string featureConstName)
{
object feature = null;
IFeatureSupport support = null;
System.Type type = null;
try
{
type = System.Type.GetType(featureClassName);
}
catch (ArgumentException)
{
}
if (type != null)
{
FieldInfo field = type.GetField(featureConstName);
if (field != null)
{
feature = field.GetValue(null);
}
}
if (feature != null)
{
support = (IFeatureSupport)System.Windows.Forms.SecurityUtils.SecureCreateInstance(type);
if (support != null)
{
return(support.GetVersionPresent(feature));
}
}
return(null);
}
/// <include file='doc\FeatureSupport.uex' path='docs/doc[@for="FeatureSupport.IsPresent1"]/*' />
/// <devdoc>
/// <para>Determines whether the specified or newer version of the specified feature is
/// installed in the system. This method is <see langword='static'/>.</para>
/// </devdoc>
public static bool IsPresent(string featureClassName, string featureConstName, Version minimumVersion)
{
object featureId = null;
IFeatureSupport featureSupport = null;
//APPCOMPAT: If Type.GetType() throws, we want to return
//null to preserve Everett behavior.
Type c = null;
try {
c = Type.GetType(featureClassName);
}
catch (ArgumentException) {}
if (c != null)
{
FieldInfo fi = c.GetField(featureConstName);
if (fi != null)
{
featureId = fi.GetValue(null);
}
}
if (featureId != null && typeof(IFeatureSupport).IsAssignableFrom(c))
{
featureSupport = (IFeatureSupport)Activator.CreateInstance(c);
if (featureSupport != null)
{
return(featureSupport.IsPresent(featureId, minimumVersion));
}
}
return(false);
}
/// <summary>
/// Gets the version of the specified feature that is available on the system.
/// </summary>
public static Version GetVersionPresent(string featureClassName, string featureConstName)
{
Type c = null;
try
{
c = Type.GetType(featureClassName);
}
catch (ArgumentException)
{
}
object featureId = c?.GetField(featureConstName)?.GetValue(null);
if (featureId == null || !typeof(IFeatureSupport).IsAssignableFrom(c))
{
return(null);
}
IFeatureSupport featureSupport = (IFeatureSupport)Activator.CreateInstance(c);
return(featureSupport.GetVersionPresent(featureId));
}
/// <summary>
/// Determines whether the specified or newer version of the specified feature is
/// installed in the system. This method is <see langword="static"/>.
/// </summary>
public static bool IsPresent(string featureClassName, string featureConstName, Version minimumVersion)
{
Type?c = null;
try
{
c = Type.GetType(featureClassName);
}
catch (ArgumentException)
{
}
object?featureId = c?.GetField(featureConstName)?.GetValue(null);
if (featureId is null || !typeof(IFeatureSupport).IsAssignableFrom(c))
{
return(false);
}
IFeatureSupport featureSupport = (IFeatureSupport)Activator.CreateInstance(c) !;
return(featureSupport.IsPresent(featureId, minimumVersion));
}