public static string DescribeElementEnteringEdit(XmlConfigurationElementCancelEventArgs e)
{
try
{
string elementType = null;
XmlConfigurationElementTypes et = e.Element.GetElementType();
switch (et)
{
case XmlConfigurationElementTypes.XmlConfiguration: elementType = "configuration"; break;
case XmlConfigurationElementTypes.XmlConfigurationCategory: elementType = "category"; break;
case XmlConfigurationElementTypes.XmlConfigurationElement: elementType = "element"; break;
case XmlConfigurationElementTypes.XmlConfigurationOption: elementType = "option"; break;
}
;
return(string.Format("The {0} '{1}' is entering edit mode at {2} on {3}. The current user is {4}.", elementType, e.Element.Fullpath, DateTime.Now.ToLongTimeString(), DateTime.Now.ToLongDateString(), System.Environment.UserName));
}
catch (System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
return(null);
}
public virtual bool BeginEdit()
{
try
{
if (!_isBeingEdited)
{
/// Raise BeforeEdit event and provide a means of cancellation
XmlConfigurationElementCancelEventArgs e = new XmlConfigurationElementCancelEventArgs(this, false);
this.OnBeforeEdit(this, e);
if (e.Cancel)
{
return(false);
}
/// place the element in edit mode and clone ourself so that future changes will be redirected to the clone and not to ourself
_editableProxy = this.GetElementToEdit();
if (_editableProxy != null)
{
_editableProxy.Changed += new XmlConfigurationElementEventHandler(this.OnChanged);
_editableProxy._isEditableProxy = true;
_isBeingEdited = true;
return(true);
}
}
}
catch (System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
return(false);
}
public void OnBeforeEdit(object sender, XmlConfigurationElementCancelEventArgs e)
{
try
{
EventTracing.TraceMethodAndDelegate(this, this.BeforeEdit);
if (this.BeforeEdit != null)
{
this.BeforeEdit(sender, e);
}
}
catch (System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
}
public void OnBeforeEdit(object sender, XmlConfigurationElementCancelEventArgs e)
{
try
{
EventTracing.TraceMethodAndDelegate(this, this.BeforeEdit);
if (this.BeforeEdit != null)
this.BeforeEdit(sender, e);
}
catch(System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
}
public static string DescribeElementEnteringEdit(XmlConfigurationElementCancelEventArgs e)
{
try
{
string elementType = null;
XmlConfigurationElementTypes et = e.Element.GetElementType();
switch(et)
{
case XmlConfigurationElementTypes.XmlConfiguration: elementType = "configuration"; break;
case XmlConfigurationElementTypes.XmlConfigurationCategory: elementType = "category"; break;
case XmlConfigurationElementTypes.XmlConfigurationElement: elementType = "element"; break;
case XmlConfigurationElementTypes.XmlConfigurationOption: elementType = "option"; break;
};
return string.Format("The {0} '{1}' is entering edit mode at {2} on {3}. The current user is {4}.", elementType, e.Element.Fullpath, DateTime.Now.ToLongTimeString(), DateTime.Now.ToLongDateString(), System.Environment.UserName);
}
catch(System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
return null;
}
public virtual bool BeginEdit()
{
try
{
if (!_isBeingEdited)
{
/// Raise BeforeEdit event and provide a means of cancellation
XmlConfigurationElementCancelEventArgs e = new XmlConfigurationElementCancelEventArgs(this, false);
this.OnBeforeEdit(this, e);
if (e.Cancel)
return false;
/// place the element in edit mode and clone ourself so that future changes will be redirected to the clone and not to ourself
_editableProxy = this.GetElementToEdit();
if (_editableProxy != null)
{
_editableProxy.Changed += new XmlConfigurationElementEventHandler(this.OnChanged);
_editableProxy._isEditableProxy = true;
_isBeingEdited = true;
return true;
}
}
}
catch(System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
return false;
}
