troubleshooting Question

c# Getting Hashtable instance from PropertyInfo or FieldInfo

Avatar of jetbet
jetbetFlag for New Zealand asked on
C#.NET Programming
12 Comments1 Solution748 ViewsLast Modified:
I am iterating through an object structure looking at values using propertyInfo and FieldInfo.
If the type is a Hashtable I want to cast to the instance and print out the key/value pairs.
I am using the following code but it does not work.

Does anyone know if this is possible
private static PropertyInfo[] GetProperties(object obj)
        {
            return obj.GetType().GetProperties();
        }

        private static FieldInfo[] GetFields(object obj)
        {
            return obj.GetType().GetFields();
        }

private void AddDataItem(ListView listView, List<String> data)
        {
            if (data.Count > 0)
            {
                ListViewItem temp = new ListViewItem(data[0]);
                for (int i = 1; i < data.Count; i++)
                {
                    temp.SubItems.Add(data[i]);
                }
                listView.Items.Add(temp);
            }
        }

private void TV_Main_AfterSelect(object sender, TreeViewEventArgs e)
        {
            TreeNode selected = TV_Main.SelectedNode;
            if (selected != null)
            {
                LV_MainProperties.Items.Clear();
                if (selected.Tag != null)
                {
                    Object obj = selected.Tag;
                   var properties = GetProperties(obj);

                    foreach (var p in properties)
                    {
                        try
                        {
                            if (p.PropertyType == typeof(Hashtable))
                            {
                                object propVal = p.GetValue(p, null);
                                Hashtable h = (Hashtable)propVal;
                                foreach (DictionaryEntry entry in h)
                                {
                                    AddDataItem(LV_MainProperties, new List<String> { entry.Key.ToString(), entry.Value.ToString() });
                                }
                            }
                            else
                            {
                                string name = p.Name;
                                var value = p.GetValue(obj, null);
                                AddDataItem(LV_MainProperties, new List<String> { name, value.ToString() });
                            }
                        }
                        catch
                        {

                        }
                    }

                    var fields = GetFields(obj);

                    foreach (var f in fields)
                    {
                        try
                        {
                            if (f.FieldType == typeof(Hashtable))
                            {
                                object propVal = f.GetValue(f);
                                Hashtable h = (Hashtable)propVal;
                                foreach (DictionaryEntry entry in h)
                                {
                                    AddDataItem(LV_MainProperties, new List<String> { entry.Key.ToString(), entry.Value.ToString() });
                                }
                            }
                            else
                            {
                                string name = f.Name;
                                var value = f.GetValue(obj);
                                AddDataItem(LV_MainProperties, new List<String> { name, value.ToString() });
                            }
                        
                        }
                        catch
                        {

                        }
                    }
                }
            }  

        }
ASKER CERTIFIED SOLUTION
Dmitry G
Senior Developer

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