System.Data.DataRowView shows in winforms combobox instead of actual data

After I load my combobox, it displays System.Data.DataRowView instead of data. I am using the correct column names as returned from the stored procedure (TimeframeDesc and TimeframeCode).

I get the message 'Cannot bind to the new display member' when debugging.

        private bool loadTimeframeList(out string msg)
    {
        msg = "";
        string spName = "schemaExec.SelTimeframeCode";
        bool result = true;
        SqlCommand cmd = new SqlCommand(spName);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Connection = _sqlConn;

        try
        {
            SqlDataAdapter rdr = new SqlDataAdapter(cmd);
            cmd.ExecuteNonQuery();
            DataTable dt = new DataTable();
            rdr.Fill(dt);

            cbTimeframe.DisplayMember = "TimeframeDesc";
            cbTimeframe.ValueMember = "TimeframeCode";
            cbTimeframe.DataSource = dt;             
        }
        catch (Exception ex)
        {
            result = false;
            msg = "Could not load Timeframe Codes" + Environment.NewLine + ex.Message;
        }
        return result;
    }

How can I reset a Windows Form?

I have a form in C# that has items such as buttons, a background, and text. When a button is clicked, I want the form to go to a blank state (nothing on the form) so I can add other things. I don't want to have to have Form1 and Form2 that switch between each other. Simply, I just don't want to switch between two different forms.

When trying to upload a file to my own ftp server i created using filezilla i'm getting The requested URI is invalid for this FTP command why?

This my ftp upload method:

string fff = "";
public string[] GetFileList()
{
    string[] downloadFiles;
    StringBuilder result = new StringBuilder();
    WebResponse response = null;
    StreamReader reader = null;
    try
    {
        FtpWebRequest reqFTP;
        reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + f.Host + "/"));
        fff = "ftp://" + f.Host + "/";
        reqFTP.UseBinary = true;
        reqFTP.Credentials = new NetworkCredential(f.Username, f.Password);
        reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
        reqFTP.Proxy = null;
        reqFTP.KeepAlive = false;
        reqFTP.UsePassive = false;
        response = reqFTP.GetResponse();
        reader = new StreamReader(response.GetResponseStream());
        string line = reader.ReadLine();
        while (line != null)
        {
            result.Append(line);
            result.Append("\n");
            line = reader.ReadLine();
        }
        result.Remove(result.ToString().LastIndexOf('\n'), 1);
        return result.ToString().Split('\n');
    }
    catch (Exception ex)
    {
        if (reader != null)
        {
            reader.Close();
        }
        if (response != null)
        {
            response.Close();
        }
        downloadFiles = null;
        return downloadFiles;
    }
}

For the test fff contain: ftp://127.0.0.1/ And in the filezilla i see in the log:

(000006)30/03/2015 21:59:24 - (not logged in) (127.0.0.1)> Connected on port 21, sending welcome message...
(000006)30/03/2015 21:59:24 - (not logged in) (127.0.0.1)> 220-FileZilla Server version 0.9.50 beta
(000006)30/03/2015 21:59:24 - (not logged in) (127.0.0.1)> 220-written by Tim Kosse (tim.kosse@filezilla-project.org)
(000006)30/03/2015 21:59:24 - (not logged in) (127.0.0.1)> 220 Please visit http://ift.tt/13OgtXY
(000006)30/03/2015 21:59:24 - (not logged in) (127.0.0.1)> disconnected.

But the file is not uploaded instead i'm getting exception message in my program:

The requested URI is invalid for this FTP command

System.Net.WebException was caught
  HResult=-2146233079
  Message=The requested URI is invalid for this FTP command.
  Source=System
  StackTrace:
       at System.Net.FtpWebRequest.CheckError()
       at System.Net.FtpWebRequest.GetResponse()
       at FTP_ProgressBar.FtpProgress.GetFileList() in c:\ftp_progressbar\FTP_ProgressBar\FtpProgress.cs:line 342
  InnerException: 

Line 342 is:

response = reqFTP.GetResponse();

In fileZilla i created a user i have a password and user name i added a directory and gave a permission to write delete read for files and directories.

Add control to the parent control at runtime

I need to add a control added at runtime to the parent control (panel) I can set the properties of the object (PictureEdit) but how do i display it...add it to the parent control??? thank you

protected override void OnPaint(PaintEventArgs pe)
{
        PictureEdit halfmoon = new PictureEdit();
        halfmoon.Location = new Point(36, 3);
        halfmoon.BorderStyle = BorderStyles.NoBorder;
        halfmoon.Properties.SizeMode = PictureSizeMode.Squeeze;
        halfmoon.Image = Properties.Resources.picture;
}

Mouse click on dom perfomance issues geckofx(embedded win xp sp3)

I need help to point out the bottleneck of my app. I am using geckofx browser control in winforms app, running on winxp sp3. Click event propagate to dom so slow - it might take up to couple seconds. Some log records with nlog

…
2015-03-30 19:05:26.3085 TRACE WM_LBUTTONDOWN
2015-03-30 19:05:27.0585 TRACE DomClick -Gecko.DOM.GeckoButtonElement
…

There is no such problem in win7 - it running fast on it. Here code of my mainform MainForm.cs

 ….
        public MainForm()
        {

            InitializeComponent();
            this.WindowState = FormWindowState.Maximized;
            //catching win messages
            Application.AddMessageFilter(this);

           Gecko.GeckoPreferences.User["layers.accelerate-all"] = true;

            this.Load += MainForm_Load;


        }

        void MainForm_Load(object sender, EventArgs e)
        {
            LogAllEvents();

        }
…

        private void LogAllEvents()
        {
            geckoWebBrowser.WindowSetBounds += (s, e) => { _logger.Trace("WindowSetBounds - " + e.Bounds); };
            geckoWebBrowser.Paint += (s, e) => { _logger.Trace("Paint -" + e.ClipRectangle); };
            geckoWebBrowser.Invalidated += (s, e) => { _logger.Trace("Invalidated -" + e.InvalidRect); };
            geckoWebBrowser.DomClick += (s, e) => { _logger.Trace("DomClick -" + e.Target.ToString()); };
            geckoWebBrowser.DocumentCompleted += (s, e) => { _logger.Trace("DocumentCompleted -" ); };
        }



public bool PreFilterMessage(ref Message m)
        {

                if (m.Msg == WM_LBUTTONDOWN)
                {
                    _logger.Trace("WM_LBUTTONDOWN");
                    return false;
                }
                else
                    if (m.Msg == WM_LBUTTONUP)
                    {
                        _logger.Trace("WM_LBUTTONUP");
                        return false;
                    }
                    else
                        return false;

        }

MainForm.Designer.cs

 …            
    // BrowserHolder
                // 
                this.BrowserHolder.Controls.Add(this.geckoWebBrowser);
                this.BrowserHolder.Dock = System.Windows.Forms.DockStyle.Fill;
                this.BrowserHolder.Location = new System.Drawing.Point(0, 28);
                this.BrowserHolder.Name = "BrowserHolder";
                this.BrowserHolder.Size = new System.Drawing.Size(1180, 554);
                this.BrowserHolder.TabIndex = 2;
                // 
                // geckoWebBrowser
                // 
                this.geckoWebBrowser.Dock = System.Windows.Forms.DockStyle.Fill;
                this.geckoWebBrowser.Location = new System.Drawing.Point(0, 0);
                this.geckoWebBrowser.Name = "geckoWebBrowser";
                this.geckoWebBrowser.Size = new System.Drawing.Size(1180, 554);
                this.geckoWebBrowser.TabIndex = 0;
                this.geckoWebBrowser.UseHttpActivityObserver = false;
     …

BrowserHolder is panel that wrap webbrowser control.

I don’t have any clue what’s going on, cpu usage under 10 percent. Here’s my machine: ms windows embedded POSready 2009 ver2.0 service pack3 Intel Atom D2500 ,1.86 ghz ,1.98 gb of ram Geckofx 16 and 31 –same result – very slow click

Creating a find dialog in C# winforms rtxtbox

So for this assignment in class I'm making a richtextbox editor in C# winforms, in this assignment I have to include a find function, but I can't seem to get the hang of it

Here's my code up until now:

            Form findDialog = new Form();
            findDialog.Width = 500;
            findDialog.Height = 142;
            findDialog.Text = "Zoeken";
            Label textLabel = new Label() { Left = 10, Top = 20, Text = "Zoek naar:", Width = 100 };
            TextBox inputBox = new TextBox() { Left = 150, Top = 20, Width = 300};
            Button search = new Button() { Text = "Zoek", Left = 350, Width = 100, Top = 70 };
            search.Click += (object sender, EventArgs e) => { findDialog.Close(); };
            findDialog.Controls.Add(search);
            findDialog.Controls.Add(textLabel);
            findDialog.Controls.Add(inputBox);
            findDialog.ShowDialog();
            return (string)inputBox.Text;

And I'm calling the function by using

string searchValue = SearchDialog();

Thanks in advance

DrawImage Height Parameter Not Working

I am making a WinForms app using VS2012 c++/cli and using DrawImage to display HD images captured from a webcam.

The images are 1920 x 1080 bitmaps that I am trying to display on a Panel control. The Panel is 240 x 135 (i.e., exactly 1/8 of the HD image).

I am calling DrawImage as follows:

    System::Drawing::Rectangle destRect = System::Drawing::Rectangle(0,0,Cam0Panel->Width,Cam0Panel->Height);
    g->DrawImage(b,destRect);

This should specify to draw the image at the relative 0,0 location on the panel and size the image to be 240 x 135. However, the image will not display.

If I change the Height parameter to specify the Panel->Bottom (which is the absolute position in the app - ~630), the image does display and is correctly sized for width but is not correctly sized for height.

Any idea what I am doing wrong or how to correctly resize and display the image?

Here is a complete version of the code.

    void Cam0Panel_Paint( Object^ /*sender*/, System::Windows::Forms::PaintEventArgs^ e )
    {
        System::Drawing::Bitmap^ b = ImageWinArray[CHANNEL_SELECT0];
        Graphics^ g = e->Graphics;

        g->InterpolationMode = System::Drawing::Drawing2D::InterpolationMode::Bilinear;
        g->CompositingMode = System::Drawing::Drawing2D::CompositingMode::SourceCopy;
        System::Drawing::Rectangle destRect = System::Drawing::Rectangle(0,0,Cam0Panel->Width,Cam0Panel->Bottom);

        g->DrawImage(b,destRect);
    }

Thanks for any help.