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sneezesnoeze wrote: I hoped to be able to get the list of groups via c#-code, not to start a separate process.
Let me write a wrapper; why does it have to be C#-code?
sneezesnoeze wrote: but I need to know which groups there are.
The user doesn't. One sees what one is allowed to see, not more.
sneezesnoeze wrote: Before I can prevent showing the user a form that he is not allowed to see, I need to define which groups are allowed to see the form.
No; you only show the user what he is allowed to see. That's how banks work; they show your bank-accounts, as opposed to listing ALL accounts and disabling the ones that aren't yours. Moreover, what would an end-user do with things he can't access? Why is it so important to show bank-accounts that I cannot access? Would I, as a user, not rather not see them at all?
There's an example that does what you want (with C# code) here[^].
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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Well, the obvious way to do this would seem to be to use the AD services functionality to search the domain. Off the top of my head, it would look a little bit like this:
PrincipalContext context = new PrincipalContext(ContextType.Domain);
GroupPrincipal principal = new GroupPrincipal(context, "*");
PrincipalSearcher searcher = new PrincipalSearcher(principal);
foreach (var group in searcher.FindAll())
{
Console.WriteLine(group.DistinguishedName);
}
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Well,
try this function :
static public void directoryInfo()
{
var di = new DirectoryInfo(@"\\server\shared\Alignment_Meeting");
foreach (DirectoryInfo dir in di.GetDirectories())
{
Console.Write(dir.FullName + "\n");
DirectorySecurity ds = dir.GetAccessControl(AccessControlSections.Access);
foreach (FileSystemAccessRule fsar in ds.GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount)))
{
string userName = fsar.IdentityReference.Value;
string userRights = fsar.FileSystemRights.ToString();
string userAccessType = fsar.AccessControlType.ToString();
string ruleSource = fsar.IsInherited ? "Inherited" : "Explicit";
string rulePropagation = fsar.PropagationFlags.ToString();
string ruleInheritance = fsar.InheritanceFlags.ToString();
Console.Write(userName + " : " + userAccessType + " : " + userRights + " : " + ruleSource + " : " + rulePropagation + " : " + ruleInheritance + "<br/>");
}
}
}
Yonatan Arbel -
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Use one of the System.DirectoryServices[^] namespaces. The syntax and functionality will be dependent on the one that you choose. I prefer S.DS.P as it doesn't go through ADSI and is faster, but vanilla S.DS and S.DS.AM are more commonly used, and have a wealth of information on usage available.
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Hi All,
Please Let me know the best wind forms controls which have the best performance and support Right-To-Left languages.
I try Telerik which support Right-To-Left but the performance is not good, and I try Infragisitcs does not support Right-To-Left.
Please help me ASAP to know whcih controls I will use.
Thank you All
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zead wrote: Please help me ASAP
We're volunteers, and the answers are free. You can't rush that.
You could try the other major vendors, like DevExpress - either download a trial or ask a salesperson whether it is supported.
The best performance would be by using the native controls (as they are out of the box). That would also be the one that adheres the default best, and -best of all-, they're free.
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
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Telerik and Devexpress are the two major providers, I used both in my projects. I am very sure that Devexpress supports localization and right-to left support. Please try the following link,
https://documentation.devexpress.com/#AspNet/CustomDocument8925[^]
I strongly recommend you to try the Devexpress. The localization and right to left support provided by DevExpress web control is better that what Telerik provides(though I prefer Telerik in general).
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Hi!
How to save the RenderTargetBitmap to png?
there is my code. No error But the file doesn't create.
private async Task<bool> SaveImageAsync(StorageFile file)
{
try
{
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
RenderTargetBitmap renderer = new RenderTargetBitmap();
await renderer.RenderAsync(SavedPic, (int)SavedPic.Width, (int)SavedPic.Height);
var buffer = await renderer.GetPixelsAsync();
stream.Seek(0);
await stream.WriteAsync(buffer);
await stream.FlushAsync();
}
}
catch
{
return false;
}
return true;
}
modified 16-Jun-14 5:25am.
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There won't be an error because you're catching everything and binning it. I guess the task returns false, but you probably don't check that and even if you do, you've thrown away the information in the exception.
A catch that does nothing with the exception is generally bad practice because it makes it hard to work out what is going wrong. At minimum, you should drop the exception message and trace into a log file; in this case you should put up an error UI of some kind because this code should not fail and the user will want to know when it does.
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it's return true. i sure that. 
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hi
i want to develop a mini messaenger in xmpp with conversation tabpage, Emotion panel.
i can duplicate tabpage by clicking " Add " button in my form. when i duplicate 2,or ... tabpage . and when i click show panel, panel dont visible in my current tabpage and visible in other tabpage(in last tabpage), i uploaded my project :
http://www.megafileupload.com/en/file/541739/tabpage-rar.html[^]
help me to slove problem
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace tabpage
{
public partial class Form1 : Form
{
private System.Windows.Forms.Panel pan;
private System.Windows.Forms.Button bt;
private System.Windows.Forms.PictureBox im1;
private System.Windows.Forms.PictureBox im2;
private System.Windows.Forms.PictureBox im3;
private System.Windows.Forms.TabPage tp;
public Form1()
{
InitializeComponent();
}
private void duplicate()
{
this.pan = new System.Windows.Forms.Panel();
this.bt = new System.Windows.Forms.Button();
this.im1 = new System.Windows.Forms.PictureBox();
this.im2 = new System.Windows.Forms.PictureBox();
this.im3 = new System.Windows.Forms.PictureBox();
this.tp = new System.Windows.Forms.TabPage();
pan.Location = new Point(201, 6);
pan.Size = new Size(140, 146);
pan.BackColor = Color.Gray;
pan.Visible = false;
bt.Location = new Point(235, 158);
bt.Text = "show";
this.bt.Click += new System.EventHandler(this.bt_Click);
im1.Size = new Size(25, 25);
im1.Location = new Point(3, 3);
im1.Image = Properties.Resources._16_circle_green;
im1.SizeMode = PictureBoxSizeMode.CenterImage;
im2.Size = new Size(25, 25);
im2.Location = new Point(30, 3);
im2.Image = Properties.Resources.delete__166_;
im2.SizeMode = PictureBoxSizeMode.CenterImage;
im3.Size = new Size(25, 25);
im3.Location = new Point(57, 3);
im3.Image = Properties.Resources.down;
im3.SizeMode = PictureBoxSizeMode.CenterImage;
tp.Controls.Add(pan);
tp.Controls.Add(bt);
pan.Controls.Add(im1);
pan.Controls.Add(im2);
pan.Controls.Add(im3);
tabControl1.Controls.Add(tp);
}
private void bt_Click(object sender, System.EventArgs e)
{
if (bt.Text == "show")
{
pan.Visible = true;
bt.Text = "hide";
}
else if (bt.Text == "hide")
{
pan.Visible = false;
bt.Text = "show";
}
}
private void button1_Click(object sender, EventArgs e)
{
duplicate();
}
}
}
http:
modified 15-Jun-14 5:25am.
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Don't post the same thing in multiple places: it wastes time and annoys people.
You have this in QA, leave it there.
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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namespace AddItemInComboBox
{
public partial class Form1 : Form
{
const string conString = "Data Source=ABHINANDANCOMPU;Initial Catalog=Color;Integrated Security=True";
public SqlConnection con = new SqlConnection(conString);
public SqlDataAdapter da = new SqlDataAdapter();
public DataSet ds = new DataSet();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
cmbCompany.DataSource = null;
ComboBoxAddData("companyName", "companyId");
}
private void ComboBoxAddData(string DisplayMember, string ValueMember)
{
cmbCompany.DataSource = null;
cmbCompany.Items.Clear();
DataTable dt = new DataTable();
SqlCommand cmd = new SqlCommand("SELECT [companyId],[companyName] FROM tblMasterCompany", con);
con.Open();
da = new SqlDataAdapter(cmd);
da.Fill(ds, "tblMasterCompany");
cmbCompany.DataSource = ds.Tables["tblMasterCompany"];
this.cmbCompany.ValueMember = "companyId";
MessageBox.Show("Add SuccessFully");
da.Dispose();
con.Close();
}
private void btnSave_Click(object sender, EventArgs e)
{
con.Open();
SqlCommand cmd = new SqlCommand("INSERT INTO tblMasterCompany ([companyName] ,[address] ,[city]) VALUES ('" + txtCompanyName.Text + "', '" + txtAddress.Text + "', '" + txtCity.Text + "')", con);
cmd.ExecuteNonQuery();
MessageBox.Show("Save ");
con.Close();
Form1_Load(sender, e);
}
}
}
modified 15-Jun-14 3:39am.
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First off, format that code so we can tell what is going on: edit the question, ands use <pre>...</pre> tags round it to preserve the formatting.
Then try explaining in more detail in the question itself what you are doing to cause the problem and what effects it is having: Remember that we can't see your screen, access your HDD, or read your mind!
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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sir i want refresh list in combo box after create a new item
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Please, read what I said in the previous message, and do that.
I am not looking at your code while you make it difficult for me! 
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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private void ComboBoxAddData(string DisplayMember, string ValueMember)
{
//
combo box cmbcomapny is not refresh Item list It just Add Item Again and again
cmbCompany.DataSource = null;
cmbCompany.Items.Clear();
DataTable dt = new DataTable();
SqlCommand cmd = new SqlCommand("SELECT [companyId],[companyName] FROM tblMasterCompany", con);
con.Open();
da = new SqlDataAdapter(cmd);
da.Fill(ds, "tblMasterCompany");
cmbCompany.DataSource = ds.Tables["tblMasterCompany"];
this.cmbCompany.DisplayMember = "companyName";
this.cmbCompany.ValueMember = "companyId";
MessageBox.Show("Add SuccessFully");
da.Dispose();
con.Close();
}
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Is it displaying the data from the database or the name of the dataitem. Check the spelling (capitalisation) of your display and value member fields.
Never underestimate the power of human stupidity
RAH
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private void ComboBoxAddData(string DisplayMember, string ValueMember)
{
// - > COMMENT LINE FOR DETAILING OUR CODE
// PROBLEM IS combo box cmbcomapny is not refresh Item list AFTER WE SET NULL VALUE IN +
// + COMBO BOX DATA SOUCE
// IT NOT CLEAR OLD LIST AND ADD NEW LIST BELOW THEIR WHEN THIS FUNCTION CALL
// cmbCompany IS A COMBO BOX
// cmd IS A SQL COMMAND WHICH SELECT TWO FILED 1 -> COMPANYID AND 2-> COMPANY NAME FROM tblMasterCompany (TABLE NAME)
// con IS A CONNECTION
cmbCompany.DataSource = null;
cmbCompany.Items.Clear();
SqlCommand cmd = new SqlCommand("SELECT [companyId],[companyName] FROM tblMasterCompany", con);
con.Open();
da = new SqlDataAdapter(cmd);
da.Fill(ds, "tblMasterCompany");
cmbCompany.DataSource = ds.Tables["tblMasterCompany"];
this.cmbCompany.DisplayMember = "companyName";
this.cmbCompany.ValueMember = "companyId";
MessageBox.Show("Add SuccessFully");
da.Dispose();
con.Close();
}
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Down vote countered.
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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OriginalGriff wrote: Down vote countered
And then some - I have the power thanks
Never underestimate the power of human stupidity
RAH
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If you want to refresh the page, You can Try this.
under the function of ComboBoxAddData() call Form1_Load(null,null). Now You can bind the your ComboBox will null values.
Plz check it.
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So as mentioned, I'm trying to make a list of people connected but you have to first add that person, having done that, that person will appear in your listbox.
And another question, is to make a private chat, using the Network API.
The network api dll that I use is this:
Click here to download.
Thank you all.
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After reading some article on performance and reading some of the .NET source code I am trying to reduce memory allocation and boxing as much as possible. Particularly in methods which are going to be called repetitively.
Now I know that foreach (var item in collection) works just as well and is more readable that
for (int i = 0; i < collection.Count; i++).
But I wonder foreach callGetEnumerator() which must return some new ThatEnumerator() which allocate an object!
So, a couple of nested foreach, bang, allocation, then GC, then slow down!
Any comments on that?
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