Fixed SD2-1490: Removing reference throws exception after change of target framework

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3713 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Project/CSharpProject.cs

@@ -117,12 +117,18 @@ namespace CSharpBinding
 					if (DefaultTargetsFile.Equals(import.ProjectPath, StringComparison.InvariantCultureIgnoreCase)) {
 						//import.ProjectPath = extendedTargets;
 						MSBuildInternals.SetImportProjectPath(this, import, ExtendedTargetsFile);
+						// Workaround for SD2-1490. It would be better if the project browser could refresh itself
+						// when necessary.
+						ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
 						break;
 					}
 				} else {
 					if (ExtendedTargetsFile.Equals(import.ProjectPath, StringComparison.InvariantCultureIgnoreCase)) {
 						//import.ProjectPath = defaultTargets;
 						MSBuildInternals.SetImportProjectPath(this, import, DefaultTargetsFile);
+						// Workaround for SD2-1490. It would be better if the project browser could refresh itself
+						// when necessary.
+						ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
 						break;
 					}
 				}

src/AddIns/BackendBindings/VBNetBinding/Project/Src/Project/VBNetProject.cs

@@ -138,12 +138,18 @@ namespace VBNetBinding
 					if (DefaultTargetsFile.Equals(import.ProjectPath, StringComparison.InvariantCultureIgnoreCase)) {
 						//import.ProjectPath = extendedTargets;
 						MSBuildInternals.SetImportProjectPath(this, import, ExtendedTargetsFile);
+						// Workaround for SD2-1490. It would be better if the project browser could refresh itself
+						// when necessary.
+						ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
 						break;
 					}
 				} else {
 					if (ExtendedTargetsFile.Equals(import.ProjectPath, StringComparison.InvariantCultureIgnoreCase)) {
 						//import.ProjectPath = defaultTargets;
 						MSBuildInternals.SetImportProjectPath(this, import, DefaultTargetsFile);
+						// Workaround for SD2-1490. It would be better if the project browser could refresh itself
+						// when necessary.
+						ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
 						break;
 					}
 				}