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  • C# - How to prevent fullscreen form covering the taskbar?

    - by Dodi300
    Hello. Does anyone know how I can prevent my C# winform covering/going on top of the taskbar? My form's border style has been set to "FixedToolWindow" which seems to cause this. I thought about reducing the height of the form, when the user makes the form maximized, but that wouldn't work as people may have different size taskbars. Any ideas? Thanks.

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  • Do not want Form to display over other application windows

    - by Cat
    I am displaying a Form from one process by passing the Show method a window handle from another process. I only want this new Form to display above the passed Form, like a MessageBox. However, this newly launched Form appears above other application windows, despite: Setting Process.WindowStyle.Hidden to the Form-displaying process Overriding the ShowWithoutActivation and CreateParams properties of the Form. Making sure Form.TopMost is not true I have checked that the window handle is valid from the second process. Focus is not stolen, however. Process A: Pass (Form) window handle to a new Process B via the command line Process B: Display a new Form using Form.Show(anotherProcessWindowHandle)

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  • How to remove row which has one or more empty or null cell ?

    - by Harikrishna
    I have datagridview on my winform. I am displaying records in the datagridview. Now after displaying the records on the datagridview, I want to remove the row from datagridview which has one or more empy cells that is no value in the cell for that row. So for that I am checking each cell for every row if there is any cell empty or null then I remove that rows using RemoveAt() function. My code is : for (int i = 0; i < dataGridView1.Rows.Count - 1; i++) { for (int j = 0; j < dataGridView1.Columns.Count; j++) { if (string.IsNullOrEmpty(dataGridView1.Rows[i].Cells[j].Value.ToString())) { dataGridView1.Rows.RemoveAt(i); break; } } }

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  • For a DataGridView, how do I get the values from each row?

    - by David L
    I am wondering what is the best way to go iterate through all the rows in a datagridview and get the values from the cells. Here is what I am thinking of doing, but I don't really like it because if I rearrange the columns then the code will also have to be changed. for (int i = 0; i < dataGridView.RowCount; i++) { string Value0 = dataGridView1.Rows[i].Cells[0]; string Value1 = dataGridView1.Rows[i].Cells[1]; string Value2 = dataGridView1.Rows[i].Cells[2]; }

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  • Casting error in my form

    - by Siva
    I have a ComboBox in a DataGridView. However I get an error when I run it: Unable to cast object of type 'System.Windows.Forms.DataGridView' to type 'System.Windows.Forms.ComboBox'. What can I do to resolve this error? ComboBox comboBox; private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { if (e.Control is ComboBox) { comboBox = e.Control as ComboBox; if (dataGridView1.CurrentCell.ColumnIndex >= 0) { System.Diagnostics.Debug.WriteLine("Edit Control Showing"); comboBox.SelectedIndexChanged -= new EventHandler(comboBoxItems_SelectedIndexChanged); comboBox.SelectedIndexChanged += new EventHandler(comboBoxItems_SelectedIndexChanged); } } } void comboBoxItems_SelectedIndexChanged(object sender, EventArgs e) { try { int comboBoxSelectedIndex = ((ComboBox)sender).SelectedIndex; string comboboxSelectedValue = ((ComboBox)sender).SelectedText; int gridViewSelectedRow = dataGridView1.CurrentRow.Index; if (comboBoxSelectedIndex >= 0 && gridViewSelectedRow >= 0) { System.Diagnostics.Debug.WriteLine("ComboBox Index - " + comboBoxSelectedIndex); System.Diagnostics.Debug.WriteLine("GridView Index - " + gridViewSelectedRow); if (comboBox != null) { comboBox.SelectedIndexChanged -= new EventHandler(comboBoxItems_SelectedIndexChanged); } } } catch(Exception E) { } }

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  • moving image to bounce or rotate in a circle

    - by BlueMonster
    I found this small application that i've been playing around with for the past little while. I was wondering, if i wanted to simply rotate the image in a circle? or make the entire image just bounce up and down, how would i modify this program to do so? Everything i've tried will just stretch the image - even if i do get it to move to the left or to the right. Any ideas on what i can do? Code is below public partial class Form1 : Form { private int width = 15; private int height = 15; Image pic = Image.FromFile("402.png"); private Button abort = new Button(); Thread t; public Form1() { abort.Text = "Abort"; abort.Location = new Point(190, 230); abort.Click += new EventHandler(Abort_Click); Controls.Add(abort); SetStyle(ControlStyles.DoubleBuffer| ControlStyles.AllPaintingInWmPaint| ControlStyles.UserPaint, true); t = new Thread(new ThreadStart(Run)); t.Start(); } protected void Abort_Click(object sender, EventArgs e) { t.Abort(); } protected override void OnPaint( PaintEventArgs e ) { Graphics g = e.Graphics; g.DrawImage(pic, 10, 10, width, height); base.OnPaint(e); } public void Run() { while (true) { for(int i = 0; i < 200; i++) { width += 5; Invalidate(); Thread.Sleep(30); } } } }

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  • How do i set this window to topmost?

    - by acidzombie24
    How do i set my window above all other? I need a bad but noticeable msg box that closes on its own. Msg is a dummy form which is empty. All i want is its title. The problems with the code is the window isnt created 0,0 (its just whereever windows feels like putting it). The width is correct but i notice if i click firefox or another app window my app doesnt pop up. I know it is being shown bc i can see it in the taskbar at the bottom for a brief second. So the bugs so far Doesnt go topmost if i click another app Isnt 0,0 How do i fix this? { var msg = new Msg(); msg.Text = (has ? "*" : "+") + args[0]; msg.TopMost = true; msg.Width = 2000; msg.Top = 0; msg.Left = 0; msg.Show(); System.Threading.Thread.Sleep(1000); msg.Close(); }

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  • Hotkey (Not Global) WinForm .NET

    - by acidzombie24
    In my winform app i would like one special button to run a test everytime i press it. There are dozens of controls so implementing it in each one takes too much time. Is there a way i can set a hotkey so no matter what i am doing in the app i can press the key and it will fire off my event?

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  • POP3 Transmission Process

    - by j-t-s
    Hi All I was wondering if anyone could help me out (not with code, although that would be appreciated), with the logic behind checking and retrieving messages from a POP3 mail server. I.e. Establish connection Validate credentials Enumerate message list Check each message to see if it's "new" Download "new" message(s). Would this be the correct way about doing this? Thank you

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  • My.Settings not saving after install

    - by blancaster
    My application is not saving users settings after I install it. When I test my app in debug or release mode it works fine. However after compiling, linking and installing the My.Settings.Save() does not seem to be working. I can manually change a setting in the config file and the app runs accordingly. So I know it’s reading the config file on application startup. What am I doing wrong? Thanks

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  • .net: How do you feed a winform after clicking on a row of a datagridview of search form?

    - by odiseh
    I have a winform which is responsible for doing a search by some conditions that users enters and then selects the records from a Database. The search form has a data grid view which shows the result. After searching, user clikcs on a row of the datagridview and then another form (for example frmShowDetails) will be displayed. My question is when displaying frmShowDetails, what are your suggestions to send the id of selected row to frmShowDetails in order to feed it to show data in .net? Do you use form property or a private mariable which sets by only form constructor? Thank you

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  • question about windows controls changed event

    - by Mike
    I have several controls on my form and on changed event the logic entity properties are changed. Is it possible not to implement changed event for every control,but do it in one place and update my logic entity when user is making changes on the form?

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  • forcing to Not to process an event

    - by BDotA
    C# WinApps: the main form has a key binding to CTRL-V ...so anywhere in the main app when I press CTRL-V something runs..good ... but also there are some MDI apps that are opening inside this main app ... in one of those there is a test box...ah! now CTRL-V also has a meanining for text box which is "Paste" ... so I added PreViewKeyDown to textbox and handled it, so now it is pasting BUT it is ALSO doing the main CTRL-V key binding that I had defined for the whole app ... but I do no want this to happen.... what can I do? ( I cannot change the key binding od the main app. I must keep it.)

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  • Which substring of the string1 matches with the string2.

    - by Harikrishna
    There are two strings. String str1="Order Number Order Time Trade Number"; String str2="Order Tm"; Then I want to know that str2 matches with which substring in the str1. string regex = Regex.Escape(str2.Replace(@"\ ", @"\s*"); bool isColumnNameMatched = Regex.IsMatch(str1, regex, RegexOptions.IgnoreCase); I am using regex because "Order Tm" will also matches "Order Time".It gives bool value that matches occurred or not. Like str2="Order Tm" then it should return like in the str1,Order Time is the substring where matches is occurred.

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  • Should I share UI for objects that use common fields?

    - by wb
    I have a parent class that holds all of the fields that are common between all device types. From that, I have a few derived classes that each hold their unique fields. Say I have device type "Switch" and "Transformer". Both derived classes only have 2-3 of their own unique fields. When doing the UI design (windows forms) in this case. Should I create two separate forms for each device type or create a user control with all fields that are shared among all devices? Thank you.

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  • What control to use

    - by Tarscher
    Hi all, I have a list of devices that I need to filter on according to options selected by the user. One such option is cooling: when the user selects cooling only the devices with cooling are shown. If cooling is not selected then all devices (with or without cooling) are shown. I wonder what kind of control I best use for this. My feeling is thata checkbox is not a good control since it represents: No cooling (unchecked) / only cooling (checked) while I want cooling and no cooling (unchecked)/ only cooling (checked). What control is best used here? Thanks.

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  • How can I loop through all the open instances of a particular form?

    - by raz3r
    I need to update a ListBox of a Form2 created dinamically. Let's say that in the event where I have to update this ListBox (in Form1 of course) I don't have a reference of this Form2 so I can't call the UpdateList method (and no, I can't make it static). I don't even know if there is a Form2 opened, it could be or not. What do you suggest? Is there a way to loop through all the open istances of Form2? Code Sample: //Form1 public void event() { //UPDATE FORM2 LISTBOX } //SOMEWHERE IN FORM1 Form2 runTime = new Form2(); //Form2 public void UpdateList() { //UPDATE LISTBOX }

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