[winforms] Forum Topics

I'm looking for a .NET tool/component I can use in WinForms that works like [mermaid](https://mermaid-js.github.io/mermaid/#/) but does not require a browser component. Something that generates an image is preferred.

Im trying to bind my custom vertical scrollbar to datagridview is this possible.. Please help Thnak you..

I'm trying to change the form icon on an app I'm creating but I've forgotten how. Does anyone remember how to create a winform icon from an image file (i.e.- jpeg, bmp, etc)?

Just to give a little more info; I'm making a simple inventory program. From the main inventory page, a user can click the "Add Item" button, where they will be taken to another form, where they can fill out the item's info. Three fields are required (Category, Item, Quantity). Based …

Hello, I'm currently working with a program that using the reportviewer in VS 2012. I have been looking online since yesterday, trying to find any kind of tutorial on how to switch between reports. I have this so far, but it doesn't work. I have another snippet I've been trying …

How do I detect left mouse button down and up events on the 'Close' option of the system menu that appears when the mouse is clicked on the top left corner of a form?

I've got some winforms partial classes marked `[Obsolete]`. Unlike when applying this to methods, I get no warning after building. Is this because it's set on a partial class? I can't set it in the designer too, because that code can/will be regenerated. Anything I can do about it with …

I have multiple listviews on a form (WinForms). List items can be dragged to other listviews. Is there a way to cancel a single item within the dragged items list? The target listview determines whether or not a single item can be dropped there. I'd prefer a solution that will …

Greetings People of Daniweb! I'm trying to add a 3rd party control to a form and I'm getting the following message: **Unable to cast object of type 'Microsoft.Practices.EnterpriseLibrary.Data.Configuration.SyntheticConfigSettings' to type 'Microsoft.Practices.EnterpriseLibrary.Data.Configuration.ContainerModel.ITypeRegistrationsProvider' ** Does anyone have any idea why this could happen? Any searches I tried on google brings back nothing …

I have a winform that uses a reportviewer to show a list of records. The form load correctly shows all the records in the dataset. The form also has a ToolStrip across the top of the form that allows the user to enter four pieces of information to search by. …

I am doing a syntax highlighter (which is my first c# project) and I have some performance problems. Every time I have to color a word, I stop the repaint, color the word, enable repaint and invalidate the richtextbox. This is the richtextbox class: namespace test { class rtb:RichTextBox { …

I have the following code : 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 PentruTestari { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { richTextBox2.Text = "int int"; richTextBox2.SelectionStart = …

I recently started to learn rich text format and i am encountering a bizarre behavior. Here is the code: private void button2_Click_1(object sender, EventArgs e) { s = richTextBox1.Rtf; s = s.Insert(s.IndexOf("colortbl ;") + 10, @"\red0\green255\blue0;\red128\green0\blue0;\red128\green128\blue0;"); LockWindowUpdate(richTextBox1.Handle); string t = @"{\cf3 test }"; s = s.Insert(s.IndexOf("int") + 3, t); //insert …

Hello Daniwebbers I have a 2 dimentional control array which gets added to it programatically. There's a lot to add to it but i have already stumbled at the first hurdle. I keep getting the standard "Object reference not set to an instance of an object." error when the first …

Okay, I know some of you are looking at that title and thinking I'm quite daft because obviously I have to have a dataadapter if I have a bindingsource. And you're right, there is a dataadapter, but it's not exposed to me. I've taken over a winforms project (attached to …

Hello my fellow DaniWebbers, I have a discussion topic for everyone. Winforms VS. WPF ITT: Your opinion on the two Your reason for coming to that discision Your approval/disapproval of Microsoft abandoning WinForms How this impacts your vb.net skills

I have seen similar questions which attempt to solve this issue, but none seem to work for me so far... Basically, for my first VB project, I am creating a virtual keyboard where a sound is played from the resources on KeyDown. So far, the program seems to work except …

Hello! :) i am starting a new winforms project and i need help in some issue. i added a panel with radio-buttons and i want to make a several panels with buttons and other components for each radio-button, for when i choose certain radio-button a certain panel will be visible …

Hi.. I am populating treeview using XML and then trying to access the nodes of treeview into webbrowser to view the files using the following code.. Can anyone please guide me with this?? [CODE] private void treeView1_MouseDoubleClick(object sender, MouseEventArgs e) { webBrowser1.Navigate(treeView1.SelectedNode.Text); } [/CODE] The following is the function to …

Hi.. Following is my code:- public static void Sync(string sourcePath, string destinationPath) { bool dirExisted = DirExists(destinationPath); //get the source files string[] srcFiles = Directory.GetFiles(sourcePath); foreach (string sourceFile in srcFiles) { FileInfo sourceInfo = new FileInfo(sourceFile); string destFile = Path.Combine(destinationPath, sourceInfo.Name); if (!dirExisted && File.Exists(destFile)) { FileInfo destInfo = new …

I am making an invoice system. Please have a look at the images. [url]http://img32.imageshack.us/img32/9216/capture1iv.jpg[/url] [url]http://img839.imageshack.us/img839/1228/capture2cq.jpg[/url] as you can see, the place order button is creating an invoice. I have actually created a junk table and a junk column in it just to setup the invoice_id and load it when "invoice …

Hi guys. I have this ComboBox which I made : [url]http://i.imgur.com/kkB8T.png[/url] I want to reference each item from the combo to a win form . So far Ive this : string comboSelectedValue = comboBox1.SelectedItem.ToString(); MessageBox.Show(comboSelectedValue); It does display of course the value Ive chosen but thats not what I want …

Hi All. I'm hoping somebody could help me out with this little problem I'm having, I've been at it for 8+ hours so far and just can't nail it. The 2 blocks of code below I'm using to log into a fresh install of phpbb forums, and they work just …

i have a background worker with a sleep method inside a method. (winforms) here is the code that is executed: [CODE] private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) { BackgroundWorker worker = sender as BackgroundWorker; int[] makeSelfMoves = new int[4]; foreach (KeyValuePair<int, int[]> item in replay)// count should be more than …

Hi, I'm novice by complete to webservices et al. I've created successfully a webservice and referenced it in a console application. By simplification let assume that the webservice contains a webmethod, the 'classic' CelsiusToFarenheit (string Celsius). Once referenced i can see my new namespace ServiceReference1 with the following classes inside: …

I am trying create a button that when clicked prints hello world in the text box above it. however im a complete noob on winforms. I normally just make console programs any tutorials on winforms ? with C++?

Hi there I am working in Visual Studio 2005 Pro. I have created a WinForm with access to a SQL database. On the WinForm I have two listboxes, the displays DivisionCode and the other DivisionID both having the same DataSource but different DisplayMembers. They occupy the same space on the …

Team - Could someone please tell me I haven't lost my mind? I have done relationships in the past but now they don't seem to work. Have I gone dumb? Creating a winform, using VS2008, sqlexpress & vb.net. My dataset looks like this: -------------------------------------------- Table 1 - BranchInformation BranchID - …

Dear forum members, I'm working on an accounting software, which I was planing to do using C#. Now that I see there is WPF that I can use instead of WinForms, I would like to ask you a couple of questions. [LIST=1] [*]For an account software, which I would like …