/// <summary>
/// Returns true if the property is settable
/// </summary>
/// <param name="property">property to check</param>
/// <returns>true if the property is settable</returns>
protected override bool PropertyIsSettable(PSProperty property)
{
ManagementBaseObject mObj = property.baseObject as ManagementBaseObject;
try
{
ManagementClass objClass = CreateClassFrmObject(mObj);
return((bool)objClass.GetPropertyQualifierValue(property.Name, "Write"));
}
catch (ManagementException)
{
// A property that lacks the Write qualifier may still be writeable.
// The provider implementation may allow any properties in the provider
// classes to be changed, whether the Write qualifier is present or not.
return(true);
}
catch (UnauthorizedAccessException)
{
// A property that lacks the Write qualifier may still be writeable.
// The provider implementation may allow any properties in the provider
// classes to be changed, whether the Write qualifier is present or not.
return(true);
}
catch (System.Runtime.InteropServices.COMException)
{
// A property that lacks the Write qualifier may still be writeable.
// The provider implementation may allow any properties in the provider
// classes to be changed, whether the Write qualifier is present or not.
return(true);
}
}
public static void Main()
{
// Get the WMI class
ManagementClass processClass =
new ManagementClass("Win32_Process");
processClass.Options.UseAmendedQualifiers = true;
// Get the properties in the class
PropertyDataCollection properties =
processClass.Properties;
// display the properties
Console.WriteLine("Win32_Process Property Names: ");
foreach (PropertyData property in properties)
{
Console.WriteLine(property.Name);
foreach (QualifierData q in property.Qualifiers)
{
if (q.Name.Equals("Description"))
{
Console.WriteLine(
processClass.GetPropertyQualifierValue(
property.Name, q.Name));
}
}
Console.WriteLine();
}
}
public static List <List <String> > getProperties(string pClass)
{
List <List <String> > result = new List <List <String> >();
ManagementClass processClass = new ManagementClass(pClass);
processClass.Options.UseAmendedQualifiers = true;
PropertyDataCollection properties = processClass.Properties;
foreach (PropertyData prop in properties)
{
List <String> pResult = new List <String>();
pResult.Add(prop.Name);
pResult.Add(prop.Type.ToString());
pResult.Add(prop.Origin);
foreach (QualifierData q in prop.Qualifiers)
{
if (q.Name.Equals("Description"))
{
pResult.Add((String)processClass.GetPropertyQualifierValue(prop.Name, q.Name));
}
}
result.Add(pResult);
}
return(result);
}
public void Fun1()
{
StringBuilder sb = new StringBuilder();
// Get the WMI class
ManagementClass processClass =
new ManagementClass("Win32_Process");
processClass.Options.UseAmendedQualifiers = true;
// Get the properties in the class
PropertyDataCollection properties =
processClass.Properties;
// display the properties
sb.AppendLine("Win32_Process Property Names: ");
foreach (PropertyData property in properties)
{
sb.AppendLine(property.Name);
foreach (QualifierData q in property.Qualifiers)
{
if (q.Name.Equals("Description"))
{
sb.AppendLine(
processClass.GetPropertyQualifierValue(
property.Name, q.Name).ToString());
}
}
sb.AppendLine();
}
textBox1.AppendText(sb.ToString());
}
public void Set(string ManagementType)
{
StringBuilder sb = new StringBuilder();
ManagementClass processClass = new ManagementClass(ManagementType);
processClass.Options.UseAmendedQualifiers = true;
PropertyDataCollection properties = processClass.Properties;
sb.AppendLine("Win32_PnPEntity Property Names:");
foreach (PropertyData property in properties)
{
sb.AppendLine(property.Name);
foreach (QualifierData q in property.Qualifiers)
{
if (q.Name.Equals("Description"))
{
sb.AppendLine(
processClass.GetPropertyQualifierValue(
property.Name, q.Name).ToString());
}
}
}
}
/// <summary>
/// Update properties table
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void UpdateProperties(object sender, EventArgs e)
{
if (listBox.SelectedItem == null)
{
MessageBox.Show(@"No class select", WmiBrowserMain.Name, MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
try
{
// revert in finally block
Cursor = Cursors.WaitCursor;
listBox.Enabled = false;
menuFileCancel.Enabled = contextMenuCancel.Enabled = true;
NameToDescription.Clear();
listView.Items.Clear();
listView.Groups.Clear();
textBoxPropertyDesc.Text = null;
const string qDescription = "Description";
groupBox3.Text = $@"Class properties: {listBox.Text}";
string className = _wmiClassCollection[listBox.Text].Name;
_cts = new CancellationTokenSource();
await Task.Run(() =>
{
ManagementClass processClass = new ManagementClass(className)
{
Options = { UseAmendedQualifiers = true }
};
PropertyDataCollection properties = processClass.Properties;
ManagementObjectSearcher searcher = new ManagementObjectSearcher($"SELECT * FROM {className}")
{
Scope = _scope,
};
foreach (var o in searcher.Get())
{
var mo = (ManagementObject)o;
_cts.Token.ThrowIfCancellationRequested();
ListViewGroup moGroup = new ListViewGroup(mo.Path.RelativePath);
Invoke(new Action(() =>
{
listView.Groups.Add(moGroup);
}));
// fill rows
foreach (PropertyData p in properties)
{
_cts.Token.ThrowIfCancellationRequested();
// Property name
string pName = p.Name;
// Property value
string pValue = default(string);
string pCimType = CimTypeToString[p.Type];
if (p.IsArray)
{ // Array
pCimType += "[]";
var array = mo[pName] as Array;
if (array != null)
{
foreach (var a in array)
{
pValue += $"{a}, ";
}
}
else
{
pValue = $"{mo[pName]}";
}
}
else
{
switch (p.Type)
{ // Not array
case CimType.None:
break;
case CimType.DateTime:
// convert DateTime to handy format
string value = mo[pName]?.ToString();
if (false == string.IsNullOrEmpty(value))
{
pValue = ManagementDateTimeConverter.ToDateTime(value).ToString(CultureInfo.CurrentCulture);
}
break;
default:
pValue = $"{mo[pName]}";
break;
}
}
// Property description
foreach (QualifierData q in p.Qualifiers)
{
_cts.Token.ThrowIfCancellationRequested();
if (q.Name.Equals(qDescription))
{
string pDescription = processClass.GetPropertyQualifierValue(pName, qDescription)?.ToString();
NameToDescription[pName] = pDescription?.Replace("\n", Nl);
break;
}
}
ListViewItem pItem = new ListViewItem(new[] { pName, pCimType, pValue })
{
Group = moGroup
};
if ((listView.Items.Count & 1) == 1)
{
pItem.BackColor = System.Drawing.Color.LightGray;
}
Invoke(new Action(() =>
{
listView.Items.Add(pItem);
}));
}
}
}, _cts.Token);
}
catch (OperationCanceledException ex)
{
MessageBox.Show(ex.Message, WmiBrowserMain.Name,
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
menuFileCancel.Enabled = contextMenuCancel.Enabled = false;
listBox.Enabled = true;
Cursor = Cursors.Default;
}
}
