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  • Smooth Text On Glass

    - by j-t-s
    Hi All I have seen many other samples out there that draw smooth text on glass. But I can't use them. I need every single label that gets added at runtime to be smooth. I can't just "draw" text onto the screen. Is this at all possible, and are there and sources around? Thank you

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  • How do i get the mouse position?

    - by acidzombie24
    Basically in relation to this question It seems like e.X,y and e.Location.X,Y is relative to mousedown? I seen negative values when i havent moved it left/above the parent picbox. So it seems like the values are relative to my mousedown, but i need values relative to the parent because i update the left/top every event and other datat and relative to mousedown is breaking my code.

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  • How to expose a control collection to a property grid at design time

    - by Stefano Delendati
    I have a custom control that with a property that is a collection of custom object. This custom object hava a reference to some component/controls. When at design time I tray to add an item to the collection and select the object, VS tells me that the control is not serializable. This is the code (simplified version - but not to much): public class ViewRefObj { public control view { get; set; } public ViewRefObj() { } } private List<ViewRefObj> _controls=new List<ViewRefObj>(); public List<ViewRefObj> Views { get { return _controls; } }

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  • Confirmation before closing

    - by saeed
    Hi I am using c# .net windows form application. I have a combo box and a text box and a close window button. Now If I make any change in the combo box or textbox and click on the close window button, it should prompt the user to save the modifications.. If no modification are made ( The user will just run the application, doesnt make any modification) then it should not prompt the user. It should close directly.. How can I do this?

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  • How can I receive the "scroll box" type scroll events from a DataGridView?

    - by Simon
    I have a DataGridView, and I'm listening to its Scroll event. This gives me a ScrollEventArgs object whose Type member is supposed to tell me the type of scroll event that has occurred. On the MSDN documentation page it says I should be able to detect movement of the scroll box by listening for events with types ThumbPosition, ThumbTrack, First, Last and EndScroll. However, when I drag the scroll box, I only get events of type LargeDecrement and LargeIncrement. How do I get access to the ThumbPosition, ThumbTrack, First, Last and EndScroll events?

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  • How to convert Bitmap to byte[,,] faster?

    - by Miko Kronn
    I wrote function: public static byte[, ,] Bitmap2Byte(Bitmap image) { int h = image.Height; int w = image.Width; byte[, ,] result= new byte[w, h, 3]; for (int i = 0; i < w; i++) { for (int j = 0; j < h; j++) { Color c= image.GetPixel(i, j); result[i, j, 0] = c.R; result[i, j, 1] = c.G; result[i, j, 2] = c.B; } } return result; } But it takes almost 6 seconds to convert 1800x1800 image. Can I do this faster?

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  • Determine when and which character is added or deleted in a Text Box.

    - by Alon
    I have a simple text box in a WPF application. I need to know when a character was added/deleted in the text box, which character and where it was added or deleted. I thought to use the TextBox.KeyDown event, but it has some problems: I can't know where the character was added or deleted. I have no idea how to determite which character was added (from the KeyEventArgs). Any ideas? I don't care to use a completely different solution from what I thought. In addition, I've just started this project so I don't care to use Windows Forms instead of WPF if your solution requires it. Thank you.

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  • Best way to update UI from other classes?

    - by Jack
    I've got several nested classes, with the following structure: BackupLocation contains list of BackupClients BackupClients contains a list of BackupVersions BackupVersions contains a list of BackupFiles In my UI - Im populating a combo box with BackupLocations - and have several listboxes for the clients, versions, and files. When processing the BackupLocations - I can update my status bar easily because thats the top level class that the UI creates. But how can I update the status bar and progress bar on each file being processed? Since the BackupFiles are 3 levels deep, I cant see any way to update the UI. The actual processing of the files are within the BackupVersion class - which loads its files. I think it probably has something to do with events and delegates - but am unsure exactly how to proceed with this, any help would be appreciated.

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  • Problem with DataGrid_CellFormatting event to set default value

    - by Royson
    Hi, I have created an applicationto display list of files. it also provide user interface for adding new column to a gridview. DataGridViewTextBoxColumn txtBoxColumn = new DataGridViewTextBoxColumn(); txtBoxColumn.Name = columnName; txtBoxColumn.HeaderText = columnName; g_dataGridView.Columns.Add(txtBoxColumn); User will create some custom type column therefore i am adding column directly to grid. I am also able to set its default value before adding for this i am using DataGrid_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) { if (colIndexWithDefaultValue.Count > 0) { if (colIndexWithDefaultValue.Contains(e.ColumnIndex)) { g_dataGridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = colIndexWithDefaultValue[e.ColumnIndex]; } } } where colIndexWithDefaultValue is list of columns with its default value. It is able to show newly created column with default value. But values are getting set for currently visible rows. To set value for all rows i have to do scrolling. So, how do i overcome this problem...

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  • DataGridView error when set DataSource

    - by user264464
    I got an error when run datagridview.DataSource = dataView; dataview is correct. I can see data inside it when I debug program. I got next error "Object reference not set to an instance of an object." Any Ideas? code: this.datagridview = new System.Windows.Forms.DataGridView(); ... DataSet ds = new DataSet(); XmlReaderSettings settings = new XmlReaderSettings(); StringReader stringReader = new StringReader(retString); XmlReader xmlReader = XmlReader.Create(stringReader, settings); ds.ReadXml(xmlReader); DataView dataView = ds.Tables[0].DefaultView; dataView is not null. I am able to view it when debug

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  • disable new row creation in datagrid view using c#

    - by syedsaleemss
    Im using c# .net windows forms application. i have a data grid view. It is connected to a database.It displays the contents of a selected table. Now if there are 4 rows in that table, it will display 4 rows. After this i am able to enter the 5th row in the datagrid view. It should be avoided. Now i have to disable creation of a new row. How can I do it?

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  • Running Services.msc as a different User C#

    - by Simon Mark Smith
    Hi, I have a requirement to create a simple windows forms application that allows an admin user to manage the Services on remote servers. We don't want to give the admins the usernames and passwords to the servers so these will be encrypted and stored in a database. My question is whether or not it is possible to spawn a Services.msc window when impersonating one of the users stored within the database? I have looked at the ProcessStartInfo class but because Services.msc is not an executable it does not seem to like executing this. Any ideas on a simple way of doing the actual impersonation and loading of Services.msc - say off a button click? Thanks

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  • How do I obtain selected rows in a DataGridView from different pages

    - by cmrhema
    Hi, I have a windows forms DataGridView, where I have data and a checkbox for each row. I will select check box for a particular row and all the selected rows will be populated in another page. if (grdEmp.Rows.Count > 0) { var selectedEmpIDs= from DataGridViewRow coll in grdEmp.Rows where Convert.ToBoolean(coll.Cells["Select"].Value) == true select coll; if (selectedEmpIDs.Count() > 0) { foreach (DataGridViewRow row in selectedEmpIDs) { selectedEmp+= row.Cells["EmpId"].Value + ","; } } } This works good only for one page. When I navigate to another page, and click the selected rows, the previous one goes off. How do I resolve it. Thanks cmrhema Note :Sorry for the confusion, When I meant it works good for a page, I meant paging. I think I need to add more inputs, There are 10 pages in the gridview. I select the first record from each page of the gridview, one after another by clicking next page( Page next button). But only the record that was selected the last is getting displayed and others and ignored off. What could be the prblm

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  • C# - Keep track of open child forms

    - by Nate Shoffner
    I currently have a parent control (Form1) and a child control (Form2). Form1 contains a listview that stores a list of of file data (each file is a separate item). Form2 contains only a textbox. Upon clicking on one of these listviewitems in Form1, Form2 is opened up and accesses the file's data and loads it into the textbox in Form2 in plain text format. The issue I'm having is, I would like to be able to detect, upon clicking of a listviewitem, whether that file is already opened in said child form and if so, to activate it (bring it to the front) and if it is not already opened, open it. I'm not sure what the best method of doing this would be since this can involve many child forms being open at once. This is not an MDI application. Any ideas on how this could be accomplished are appreciated and samples even more so. Thank you.

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  • LINQ 2 SQL Insert Error

    - by Refracted Paladin
    I have the below LINQ method that I use to create the empty EmploymentPLan. After that I simply UPDATE. For some reason this works perfectly for myself but for my users they are getting the following error -- The target table 'dbo.tblEmploymentPrevocServices' of the DML statement cannot have any enabled triggers if the statement contains an OUTPUT clause without INTO clause. This application is a WinForm app that connects to a local SQL 2005 Express database. public static Guid InsertEmptyEmploymentPlan(int planID, string user) { using (var context = MatrixDataContext.Create()) { var empPlan = new tblEmploymentQuestionnaire { PlanID = planID, InsertDate = DateTime.Now, InsertUser = user, tblEmploymentJobDevelopmetService = new tblEmploymentJobDevelopmetService(), tblEmploymentPrevocService = new tblEmploymentPrevocService() }; context.tblEmploymentQuestionnaires.InsertOnSubmit(empPlan); context.SubmitChanges(); return empPlan.EmploymentQuestionnaireID; } }

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  • Form.Show() is not showing it's child controls

    - by Refracted Paladin
    I have a form, frmPleaseWait, that has a MarqueeProgressBar and a Label that I want to use when the UI is loading the data in a poorly structured app we have. The problem is that frmPleaseWait.Show() shows the form but not the controls in it. It is just a white rectangle. Now frmPleaseWait.ShowDialog() shows the child controls but doesn't let the UI load it's data. What am I missing? Below is a code snippet from where I am trying this. PleaseWait = new frmPleaseWait(); PleaseWait.Show(this); // Set all available HUD values in HUD Object HUD.LastName = GetCurrentRowVal("LastName").Trim(); HUD.FirstName = GetCurrentRowVal("FirstName").Trim(); HUD.PersonId = Convert.ToInt32(GetCurrentRowVal("PersonID").Trim()); HUD.SSn = GetCurrentRowVal("SSN").Trim(); HUD.MiddleName = GetCurrentRowVal("MiddleName").Trim(); HUD.MasterID = ConnectBLL.BLL.DriInterface.CheckForDriId(HUD.PersonId).ToString(); // This loads numerous UserControls with data shellForm.FormPaint(HUD.PersonId); PleaseWait.Close();

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  • C# cross thread dialogue co-operation

    - by John Attridge
    K I am looking at a primarily single thread windows forms application in 3.0. Recently my boss had a progress dialogue added on a separate thread so the user would see some activity when the main thread went away and did some heavy duty work and locked out the GUI. The above works fine unless the user switches applications or minimizes as the progress form sits top most and will not disappear with the main application. This is not so bad if there are lots of little operations as the event structure of the main form catches up with its events when it gets time so minimized and active flags can be checked and thus the dialog thread can hide or show itself accordingly. But if a long running sql operation kicks off then no events fire. I have tried intercepting the WndProc command but this also appears queued when a long running sql operation is executing. I have also tried picking up the processes, finding the current app and checking various memory values isiconic and the like inside the progress thread but until the sql operation finishes none of these get updated. Removing the topmost causes the dialog to disappear when another app activates but if the main app is then brought back it does not appear again. So I need a way to find out if the other thread is minimized or no longer active that does not involve querying the actual thread as that locks until the sql operation finishes. Now I know that this is not the best way to write this and it would be better to have all the heavy processing on separate threads leaving the GUI free but as this is a huge ancient legacy app the time to re-write in that fashion will not be provided so I have to work with what I have got. Any help is appreciated

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  • Where do I control the behavior of the "X" close button in the upper right of a winform?

    - by John at CashCommons
    I'm venturing into making my VB.NET application a little better to use by making some of the forms modeless. I think I've figured out how to use dlg.Show() and dlg.Hide() instead of calling dlg.ShowDialog(). I have an instance of my modeless dialog in my main application form: Public theModelessDialog As New dlgModeless To fire up the modeless dialog I call theModelessDialog.Show() and within the OK and Cancel button handlers in dlgModeless I have Private Sub OK_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK_Button.Click Me.DialogResult = System.Windows.Forms.DialogResult.OK Me.Hide() End Sub Private Sub Cancel_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel_Button.Click Me.DialogResult = System.Windows.Forms.DialogResult.Cancel Me.Hide() End Sub and that seems to work fine. The "X" button in the upper right is getting me, though. When I close the form with that button, then try to reopen the form, I get ObjectDisposedException was unhandled. Cannot access a disposed object. I feel like I'm most of the way there but I can't figure out how to do either of the following: Hide that "X" button Catch the event so I don't dispose of the object (just treat it like I hit Cancel) Any ideas? The class of this dialog is System.Windows.Forms.Form. Thanks as always!

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  • Printing Images C# Overlapping Wrong

    - by Alen
    I have created a program much like Photoshop in the sense that you can place images (picture box) on a control, move them around, delete them, and so on... I have also managed to put together a method to print all the images on the control with no problems. But here is the weird part: When I click print, the program prints the image which was placed first, on top of the image which came second. On the screen the user can see the image which was placed second, on top of the first placed image (the way it should be) but when I print its opposite? I have no idea why it does this... I hope I've made my self as clear as possible, any help is appreciated! public void printToGraphics(Graphics graphics, Rectangle bounds) { graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit; graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality; graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; Bitmap bitmap = new Bitmap(newLabel.Width, newLabel.Height); newLabel.DrawToBitmap(bitmap, newLabel.DisplayRectangle); Rectangle target = new Rectangle(0, 0, bounds.Width, bounds.Height); target.Height = bitmap.Height; target.Width = bitmap.Width; graphics.PageUnit = GraphicsUnit.Display; graphics.DrawImage(bitmap,target); } void printDoc_PrintPage(object sender, PrintPageEventArgs e) { printToGraphics(e.Graphics, e.MarginBounds); }

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  • allow only distinct values in ComboBox

    - by Ravinder Gangadher
    In my project, I am trying to populate ComboBox from DataSet. I succeeded in populating but the values inside the ComboBox are not distinct (Because it just showing the values present in DataSet). I cant bind the ComboBox to DataSet because I am adding "Select" text at first of populating the values. Here is my code. ComboBox --> cmb DataSet --> ds DataSet Column Name --> value(string) cmb.Items.Clear(); cmb.Items.Add("Select"); for (int intCount = 0; intCount < ds.Tables[0].Rows.Count; intCount++) { cmb.Items.Add(ds.Tables[0].Rows[intCount][value].ToString()); } cmb.SelectedIndex = 0; My question is how to allow distinct values (or restrict duplicate values) inside the ComboBox.

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  • How can i add to dataGridView1 a data to the last row/column?

    - by user3681442
    In top of form1 i did: private System.Timers.Timer _refreshTimer; private int _thisProcess; Then in the Form1 Load event: _thisProcess = Process.GetCurrentProcess().Id; InitializeRefreshTimer(); PopulateApplications(); Then the timer init method: void InitializeRefreshTimer() { _refreshTimer = new System.Timers.Timer(5000); _refreshTimer.SynchronizingObject = this; _refreshTimer.Elapsed += new System.Timers.ElapsedEventHandler(TimerToUpdate_Elapsed); _refreshTimer.Start(); } Then the timer elapsed event: void TimerToUpdate_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { PopulateApplications(); } In the end the Populate method: void PopulateApplications() { dataGridView1.Rows.Clear(); foreach (Process p in Process.GetProcesses(".")) { if (p.Id != _thisProcess) { try { if (p.MainWindowTitle.Length > 0) { String status = p.Responding ? "Running" : "Not Responding"; dataGridView1.Rows.Add( p.MainWindowTitle, status); } } catch { } } } } The variable status show in the column2 but let's say i want that status will be display for each process/app in column5 ? How can i move it ? EDIT** Tried this: void PopulateApplications() { dataGridView1.Rows.Clear(); foreach (Process p in Process.GetProcesses(".")) { if (p.Id != _thisProcess) { try { if (p.MainWindowTitle.Length > 0) { var icon = Icon.ExtractAssociatedIcon(p.MainModule.FileName); Image ima = icon.ToBitmap(); img.Image = ima; img.HeaderText = "Image"; img.Name = "img"; String status = p.Responding ? "Running" : "Not Responding"; dataGridView1.Rows.Add(img, p.MainWindowTitle, status); } } catch { } } } } I moved the variable img to the top of the form. The problem is i see in each row this: DataGridViewImageColumn { Name=img, Index=-1 } And i don't see the icon it self. Why ?

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