Search Results

Search found 45324 results on 1813 pages for 'winforms to web'.

Page 170/1813 | < Previous Page | 166 167 168 169 170 171 172 173 174 175 176 177  | Next Page >

  • After drawing circles on C# form how can i know on what circle i clicked?

    - by SorinA.
    I have to represent graphically an oriented graph like in the image below. i have a C# form, when i click with the mouse on it i have to draw a node. If i click somewhere on the form where is not already a node drawn it means i cliked with the intetion of drawing a node, if it is a node there i must select it and memorize it. On the next mouse click if i touch a place where there is not already a node drawn it means like before that i want to draw a new node, if it is a node where i clicked i need to draw the line from the first memorized node to the selected one and add road cost details. i know how to draw the circles that represent the nodes of the graph when i click on the form. i'm using the following code: namespace RepGraficaAUnuiGraf { public partial class Form1 : Form { Graphics graphDrawingArea; Bitmap bmpDrawingArea; Graphics graph; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { bmpDrawingArea = new Bitmap(Width, Height); graphDrawingArea = Graphics.FromImage(bmpDrawingArea); graph = Graphics.FromHwnd(this.Handle); } private void Form1_Click(object sender, EventArgs e) { DrawCentralCircle(((MouseEventArgs)e).X, ((MouseEventArgs)e).Y, 15); graph.DrawImage(bmpDrawingArea, 0, 0); } void DrawCentralCircle(int CenterX, int CenterY, int Radius) { int start = CenterX - Radius; int end = CenterY - Radius; int diam = Radius * 2; bmpDrawingArea = new Bitmap(Width, Height); graphDrawingArea = Graphics.FromImage(bmpDrawingArea); graphDrawingArea.DrawEllipse(new Pen(Color.Blue), start, end, diam, diam); graphDrawingArea.DrawString("1", new Font("Tahoma", 13), Brushes.Black, new PointF(CenterX - 8, CenterY - 10)); } } } My question is how can i find out if at the coordinates (x,y) on my form i drew a node and which one is it? I thought of representing the nodes as buttons, having a tag or something similar as the node number(which in drawing should be 1 for Santa Barbara, 2 for Barstow etc.)

    Read the article

  • Datatable and Datagridview.

    - by Harikrishna
    I have datatable table like id name address phoneno 1 abc kfjskl 798798 2 bcd kjdsfl 808909 3 899009 fjsh kjllkjl 5 jfkd And I am displaying this value in the datagridview by code dataGridView1.ColumnCount = Table.Columns.Count; dataGridView1.RowCount = Table.Rows.Count; for (int i = 0; i < dataGridView1.RowCount; i++) { for (int j = 0; j < dataGridView1.ColumnCount; j++) { dataGridView1[j, i].Value = Table.Rows[i][j].ToString(); } } Now I don't want to display row that has some missing value like If I will do that then the datagridview will look like 1 abc kfjskl 798798 2 bcd kjdsfl 808909 How can I do that ?

    Read the article

  • Is this part of MVC in .NET?

    - by 4thSpace
    I have a .NET MVC winform app. I've created an AppDelegate class that handles application startup and shutdown...for now (it might do more later). Winform apps have a Program.cs file that does some app initialization, starts the message pump and creates the first form. In my app, the first form is AppDelegate, which isn't really a form but is forced that way by Application.Run(). AppDelegate does any further app initialization and starts the first Controller, which then initializes any child controllers (these then create their views). I don't consider events occuring in Program.cs and AppDelegate as part of the MVC. Conceptually, what would these be called?

    Read the article

  • How Can I Choose Appropriate ComboBox Value Based on Select ListView Record? - C#.NET

    - by peace
    Contact Title has a default value which is Sales Person. Anyhow, when a user click Edit on the chosen ListView record, i need Contact Title to have the right value that corresponds to the chosen record. For example, if user clicks edit, the fields on the left side will be filled with values. In this case, i want Contact Title to view the right value. How can i do it? I hope my question is clear enough.

    Read the article

  • C#: standard Windows menu bars in Windows Forms

    - by BoltClock
    I noticed that adding a MenuStrip (from the VS Toolbox) to my form design doesn't yield a menu bar like many native Windows applications. Instead I get a menu bar like VS's own. None of the style settings for MenuStrip appear to mimic the much more common native menu bar. Is there a way to add a menu bar to my Windows Forms application that looks the same as the one you see in Notepad, Task Manager, Windows Explorer and others? (Preferably with the designer, but I wouldn't mind adding it programmatically either.)

    Read the article

  • TabControl winform c#

    - by Steve
    Hi, Does anyone know why my tabcontrol will not display on this form? Have a feeling it maybe something simple but at the moment i just get a blank form. Thanks using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace test_project_3 { public partial class TabTest : Form { public TabTest() { InitializeComponent(); WebBrowser WB = new WebBrowser(); WB.Navigate("www.google.com"); TabControl tc = new TabControl(); tc.Dock = DockStyle.Fill; tc.Show(); TabPage tp = new TabPage(); tp.Text = "test"; tp.Show(); tp.Controls.Add(WB); tc.TabPages.Add(tp); } } }

    Read the article

  • form not showing

    - by Luke
    Perhaps this has something to do with it being the mainForm, but I'll ask the question. I have my mainForm that is the first to load when the program is booted. I then click a button called Add, which should open a new form, and close the mainForm. The problem is, is shows the new form for a split second, then closes both. The code: private void addFrmBtn_Click(object sender, EventArgs e) { saveForm saveform = new saveForm(); saveform.Show(); this.Close(); }

    Read the article

  • What is the best way to call a method right AFTER a form loads?

    - by Jordan S
    I have a C# windows forms application. The way I currently have it set up, when Form1_Load() runs it checks for recovered unsaved data and if it finds some it prompts the user if they want to open that data. When the program runs it works alright but the message box is shown right away and the main program form (Form1) does not show until after the user clicks yes or no. I would like the Form1 to pop up first and then the message box prompt. Now to get around this problem before I have created a timer in my Form, started the timer in the Form1_Load() method, and then performed the check and user prompt in the first Timer Tick Event. This technique solves the problem but is seems like there might be a better way. Do you guys have any better ideas? Edit: I think I have also used a background worker to do something similar. It just seems kinda goofy to go through all the trouble of invoking the method to back to the form thread and all that crap just to have it delayed a couple milliseconds!

    Read the article

  • Using Application Settings and reading defaults from app.config

    - by Peter Goras
    Hi, I need to deploy a Windows Forms application using ClickOnce deployment. (VS2008, .NET 3.5) And I need to provide a configuration file for this app that any user can modify. For this reason, I am using Application Settings instead of standard appSetttings in app.config so I can separate the the user config from app config. see http://msdn.microsoft.com/en-us/library/ms228995(VS.80).aspx Creating a Settings.settings file using VS generated a class with hard-coded default values like this: [global::System.Configuration.DefaultSettingValueAttribute("blahblah")] public string MyProperty ... WTF? I want to read the default values from the app.config! So I created my own class deriving from ApplicationSettingsBase but I cannot get this to read values from the app.config. Any ideas?

    Read the article

  • Read text file into listbox collections

    - by Arcadian
    Hi, i'm new to C#. I need my program to show different parts of the data contained in a txt file into different listboxs (which are on different tabs of a form) so that the user can see the particular block of data they are interested in. the data contained in the txt file looks like this: G30:39:03:31 JG06 G32:56:36:10 JG04 G31:54:69:52 JG04 G36:32:53:11 JG05 G33:50:05:11 JG06 G39:28:81:21 JG01 G39:22:74:11 JG06 G39:51:44:21 JG03 G39:51:52:22 JG01 G39:51:73:21 JG01 G35:76:24:20 JG06 G35:76:55:11 JG01 G36:31:96:11 JG02 G36:31:96:23 JG02 G36:31:96:41 JG03 though much more of it :) The separate listboxes will contain only the lines who's first integer pair matches that listbox's name. For example, all the lines that start "G32" will be added to the G32 listbox. I think the code would start something like: private void ReadToBox() { FileInfo file = new FileInfo("Jumpgate List.JG"); StreamReader objRead = file.OpenText(); while (!objRead.EndOfStream) but i'm not sure where to start in terms of getting it sorted yet. Any help? There's some rep in it for you :D

    Read the article

  • How do I pass a reference type to Control.Invoke / display a form centered on the main form

    - by Rubio
    I'm on a thread other than the UI thread and need to display a modal form that's centered on the application's main form. What I usually do is use the width and height of the main form and the modal form to calculate the location, then use the PointToScreen method of the main form to get the location of the modal form. Since I'm on another thread I need to use Control.Invoke to call this method. I just can't figure out how to pass a parameter of type Point to Control.Invoke (params object[]). Value types and String works fine. Or, if someone can find a better way to display a form centered on the main form regardless of thread, that would be great. MessageBox seems to be able to do this (although not modally).

    Read the article

  • What should I consider when deploying a new web farm?

    - by tsilb
    My web app has been chugging along just great in Production for years with one App server and one Web server. Now we're moving to a multi-server environment with 2 App and 3 Web servers. I have enough time to make changes before the go-live. As a Developer, what considerations should I take into account from coding, deployment, and architectural/ecosystem management perspectives? Already on my list: Remove tight-coupling between servers Applicable files (i.e. downloadables) stored in IMAGE fields in SQL instead of files on app server Deployment: Take out node out of the farm at a time

    Read the article

  • Save Dialog on top of another custom dialog is behaving strangely!

    - by Raghu
    I have a save as image feature for charts in my application. The chart control is a custom user control with custom logic in them. It also has some scaling based on size, zoom etc. However, while saving them as an image I would like to give the user the option to set the size of the image (eg: 800x600 px @ 300 DPI). To do this I have created a Form with textboxes/checkboxes etc for various settings for image. One of these TextBoxes is for the file name. The file name textbox is readonly and is accompanied with a browse button which shows a SaveFileDialog when clicked. The user clicks "Save As Image" in the main form's menu. I show the ImageExportDialog using the code below: using(ImageExportDialog dlg = new ImageExportDialog()) { if(dlg.ShowDialog() == DialogResult.OK) { //get the settings selected by the user and generate the image } } In the ImageExportDialog, the user clicks on the browse button and the SaveFileDialog is shown as follows: using(SaveFileDialog dlg = new SaveFileDialog()) { if(dlg.ShowDialog() == DialogResult.OK) { txtFileName.Text = dlg.FileName; } } Now the problem is, when the user clicks on "Save" button in the SaveFileDialog, as expected the txtFileName.Text is set, but the parent custom dialog also seems to return from the ShowDialog method and the DialogResult is the same as the one for SaveFileDialog! The control then goes on to the "get the settings selected by the user and generate the image" part of the code above. Not really sure what I am doing wrong here!

    Read the article

  • C# - How can i open a second winform asynchronously but still behave as a child to the parent form?

    - by Gary Willoughby
    I am creating an application and i would like to implement a progress window that appears when a lengthy process is taking place. I've created a standard windows form project to which i've created my app using the default form. I've also created a new form to use as a progress window. The problem arises when i open the progress window (in a function) using: ProgressWindow.ShowDialog(); When this command is encountered, the focus is on the progress window and i assume it's now the window who's mainloop is being processed for events. The downside is it blocks the execution of my lengthy operation in the main form. If i open the progress window using: ProgressWindow.Show(); Then the window opens correctly and now doesn't block the execution of the main form but it doesn't act as a child (modal) window should, i.e. allows the main form to be selected, is not centered on the parent, etc.. Any ideas how i can open a new window but continue processing in the main form?

    Read the article

  • How do I Data-Bind dual DateTimePicker to a single DateTime object

    - by S.C. Madsen
    Hi, I have a simple form, with two DateTimePicker-controls: One for date, and one for time. The thing is these two controls are supposed to represent a single point in time. Hence I would like to "Bind" them to a single DateTime property on my form (for simplicity). I did the following: // Start is a DateTime property on the form _StartDate.DataBindings.Add("Value", this, "Start"); _StartTime.DataBindings.Add("Value", this, "Start"); But hooking into "ValueChanged" event, yields mixed results... Sometimes I get exactly what I want, sometimes the updates of the property are "sluggish". I figured this way of splitting into two DateTimePicker's was fairly common. So how to do it? Update: There is possibly multiple questions in there: How do I bind a DateTimePicker (Format: Date) to a DateTime Property on a form? Then, how do I bind yet another DateTimePicker (Format: Time) to the same property? I'm using Visual Studio Express 2008 (.NET 3.5), and I seemingly get ValueChanged events from the DateTimePickers before the value is changed?

    Read the article

  • When should I be cautious using data binding in .NET?

    - by Ben McCormack
    I just started working on a small team of .NET programmers about a month ago and recently got in a discussion with our team lead regarding why we don't use databinding at all in our code. Every time we work with a data grid, we iterate through a data table and populate the grid row by row; the code usually looks something like this: Dim dt as DataTable = FuncLib.GetData("spGetTheData ...") Dim i As Integer For i = 0 To dt.Rows.Length - 1 '(not sure why we do not use a for each here)' gridRow = grid.Rows.Add() gridRow(constantProductID).Value = dt("ProductID").Value gridRow(constantProductDesc).Value = dt("ProductDescription").Value Next '(I am probably missing something in the code, but that is basically it)' Our team lead was saying that he got burned using data binding when working with Sheridan Grid controls, VB6, and ADO recordsets back in the nineties. He's not sure what the exact problem was, but he remembers that binding didn't work as expected and caused him some major problems. Since then, they haven't trusted data binding and load the data for all their controls by hand. The reason the conversation even came up was because I found data binding to be very simple and really liked separating the data presentation (in this case, the data grid) from the in-memory data source (in this case, the data table). "Loading" the data row by row into the grid seemed to break this distinction. I also observed that with the advent of XAML in WPF and Silverlight, data-binding seems like a must-have in order to be able to cleanly wire up a designer's XAML code with your data. When should I be cautious of using data-binding in .NET?

    Read the article

  • How to mock test a web service in PHPUnit across multiple tests?

    - by scraton
    I am attempting to test a web service interface class using PHPUnit. Basically, this class makes calls to a SoapClient object. I am attempting to test this class in PHPUnit using the "getMockFromWsdl" method described here: http://www.phpunit.de/manual/current/en/test-doubles.html#test-doubles.stubbing-and-mocking-web-services However, since I want to test multiple methods from this same class, every time I setup the object, I also have to setup the mock WSDL SoapClient object. This is causing a fatal error to be thrown: Fatal error: Cannot redeclare class xxxx in C:\web\php5\PEAR\PHPUnit\Framework\TestCase.php(1227) : eval()'d code on line 15 How can I use the same mock object across multiple tests without having to regenerate it off the WSDL each time? That seems to be the problem.

    Read the article

  • WinAPI magic (TCM_ADJUSTRECT message) and MONO runtime

    - by Luca
    I'm trying to get the same result of a .NET application (see the link Hide TabControl buttons to manage stacked Panel controls for details), but using the MONO runtime instead of the MS .NET runtime. Pratically, when the custom control is executed using the MONO runtime, the underlying message is not sent to the control, causing the tab pages to be shown... There is a portable solution which is elegant as the linked one? If it is not possible, what are possible workarounds (apart from removing/adding tabs at runtime)?

    Read the article

  • Form Closing event

    - by johnm01
    Hi all, I have a smartdevice project targeting windows mobile 6. In the top right corner is an X (provided by the controlbox). i have an event on the form_closing that i was hoping would fire when the cross is clicked. But it doesnt :-( Does anyone know why this event is not firing ??? Thanks :-) John

    Read the article

  • How to get DataGridViewRow from CellFormatting event?

    - by tomaszs
    I have a DataGridView and handle event CellFormatting. It has a parameter called: DataGridViewCellFormattingEventArgs e With e.RowIndex in it. When i do: DataGridView.Rows[e.RowIndex] I get proper row from collection. But when I click at a header of a column to sort it by other column than default one and user DataGridView.Rows[e.RowIndex] I get unproper row. It is because Rows collection do not reflect order of rows in DataGridView. So how to get propert DataGridViewRow from RowIndex in DataGridView?

    Read the article

  • Expression Blend 2/WPF Book

    - by Michael Damatov
    I'm looking for an Expression Blend 2 book that includes best-practices (Expression Blend 2/Visual Studio 2008) designer perspective (Expression Blend 2) programmer perspective (interoperability with Visual Studio 2008) How-To-chapters for Windows Forms developers (how to solve the same problem with WPF) Could you make a recommendation?

    Read the article

  • If I replace an image in a PictureBox control, should I dispose the original image first? .Net Winfo

    - by Jules
    Following on from my question here http://stackoverflow.com/questions/2548664/long-overdue-for-me-question-about-disposing-managed-objects-in-net-vb-net , If I replace an image in a picture box, should I dispose the original image first? Or, what about this situation: Dim bm As New Bitmap(32,32) bm = New Bitmap(32,32) bm = New Bitmap(32,32) bm = New Bitmap(32,32) Does bm need only to be disposed at the end, or should it be disposed before each re-creation?

    Read the article

< Previous Page | 166 167 168 169 170 171 172 173 174 175 176 177  | Next Page >