Hi, I'm having several memory leaks in my Windows Form (C#). Testing, I found a curious thing: Put a ListView control in a Windows Form, run the project and start the TaskManager. Each time you focus the form or pass the mouse in/out the ListView, the memory used by the application ...more >>

Hello gurus! In my C# project I have a localized form that I use as the prototype for two others. The prototype form has a ListBox control data bound to an ArrayList containing data elements of a custom class type. At design time its Items collection is empty and is populated by data binding...more >>

I want to add a DataSource property to my control that, at design time, will allow the designer to drop down a list of valid datasource components just like the DataGrid control. The type on the DataSource property is just 'object', so I know it isn't that. Is there a special designer attribute I ha...more >>

I need to iterate the Buttons collection in a toolbar and get the name of each button. The objects in the collection are not normal Button objects. They are ToolBarButton objects, which do not appear to have a Name property. Is there some other place to get the name? ...more >>

I'm trying to enable Windows XP themes in my application. First I tried adding a call to Application.EnableVisualStyles(), but that didn't appear to actually do anything (aka I still wasn't getting styles). Yes, I have all my buttons and what not using FlatStyle = FlatStyle.System. I added a...more >>

Hi, I would like to know your opinions about the best way of implementing databinding in an application. Let's take a simple example: we have a table called 'Employee' and we would like to display its content in a DataGrid. 1st solution: -Export all the Employee records from the database...more >>

Dear All, If I create a proxy object to a WebService in my Form as an instance object, does it create a process thread in my WebServer that is hosting the WebService?.... As the WebService object gets an error if I try to call a WebService method after around 30 minutes of inactivity...is re...more >>

The datagrid.click event only fires when the grid is clicked (ie the lines around each cell Is there a way to detect a click inside a cell in the datagrid TIA...more >>

I am pointing a DataGrid at a DataTable to display some data. Is there a way to a) hide columns that are displaye an b) update the row header with some tes TIA...more >>

Dear All, In ASP.Net we had... Sub Page_Error(Source As Object, E As EventArgs) Dim message As String = "<font face=verdana color=red>" _ & "<h4>" & Request.Url.ToString() & "</h4>" _ & "<pre><font color='red'>" & Server.GetLastE...more >>

HI, I want to embed the Microsoft word window in my WIndows forms designed in C# ,net..... can anybody suggests, apart from using the Webbrowser control, what can be the other option avaialable to us. Thanks Vikash...more >>

All - I have the need to make my app multi threaded for those long = running tasks. Some of them are not a problem but the question I have is = with SQL and populating items on a form. If I create a new thread, = connect to my SQL, run a long query and then populate a combobox within = this new ...more >>

Hi, I am developing my own taskbar like explorers. Therefore I need to be able to get a list of all open windows, and their associated icon (not necesarily the .exe file icon). Furthermore any information about how to retrieve systray icons would be great. I guess I cannot avoid using AP...more >>

Hi everybody, I'm pretty new to .NET framework so don't get hungry at my silly question Is there a way to put a combobox into a toolbar? I've been trying to do that for quite a long time with no success. If anyone has suggestions please let me know Thanks...more >>

What I would like to do is In a win form, I have a comboBox, when the form is loaded, I don't want to populate the comboBox(I have a lot of data). Instead, I want the user to type in the first few letters of the search criteria, then I capture it and run the search and return the result back and l...more >>

I'm struggling with using the HttpCookie object on a code behind. Used in the page works great I'm getting a: Type 'HttpCookie' is not define I've tried adding the namespace to the vb form but no luck Imports System.Data.Sqlclien Imports System.Dat Imports Syste Imports System.Web.U Imports...more >>

Can anyone point me to some documentation on how to build a real life smart client application. I also would like to read about typical way of creating a offline smart client application, components involved etc. I also would like to hear from people on how successful is this concept. Is this wid...more >>

Hi! I have problems with databinding of xml files to comboboxes and then getting the selected value of a selected item. For example, I have the following xmlfile: <?xml version="1.0" encoding="UTF-8" ?> <Foo xmlns="http://tempuri.org/test.xsd"> <Person xmlns="http://tempuri.org/test.xsd...more >>

Could someone point me to a solution I am appending text to bottom of a textbox and would like the display to scroll to the bottom where the new text is instead of the top of the textbox. I know the following solution but the issue with this is the FLICKER Any solution textBox1.AppendText("This...more >>

On my MDI application I am setting one from to WindowState = FormWindowState.Maximized. If this window is open then all windows open Maximized regardless of their settings. Thanks in advance for any help. -Brian K. Williams ...more >>

I have got combobox data grid sample from http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp#q480q I added code to update changed records but it does not work.Have some one idea how add update ,new and delete functionality to data grid with combobox coloum.Data grid displays data from two tab...more >>

I have a program that requires multiple DLL's, how can i check for these dependencies on startup? TIA, Ahmed *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

hi all, problem: i have several controls on my form which can get focus, like buttons/combos. i have to catch keyboard events for special keys like Alt-F1 on my form, for that, i simply implemented keydown event handler on my form control, but when some other control has focus, all keypress ev...more >>

looking for a comprehensive version of most common API functions used in ..Net, sample below: =============================================================== using System; using System.Runtime.InteropServices; namespace ApiWrapper { /// <summary> /// Summary description for Win32API. ...more >>

Hello Developpers I faced with an undefined error. I developped a Windows Forms Application. When I opened my project's Solution, all the documents, which were created before, listed properly at the Solution Explorer. But when I wanted to see my form by clicking on to Design View, the following err...more >>

Have an action I want triggered after a form is dragged to a certain size. Right now the code I am calling is running repeatedly during the whole drag to size action. I would like it to run only after the drag to size action has been completed. (Using VS 2002 - VB) Is this possible? Thanks...more >>

I am designing a component to be used on windows applications. 'code'''''''''''''''''''''''''''''''''''''''''''''''''''' Public Class SomeComponent Inherits System.ComponentModel.Component Private _gaugeSettings As New GaugeConfiguration Public Property GaugeSettings() As GaugeConfig...more >>

Hi All, why keydown event is functioning properly as it was in VB6.? I have the following declaration. It is catchig Alphanumeric Keys but not the function and tab key. following is the syntax; Private Sub cmb1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Ha...more >>

hi all, i want to use "Windows Picture Viewer and Fax Viewer" in my c# app to manipulate images, picture viewer is found as a DLL (shimgvw.dll) in System32 folder of WinXP. can some one tell me how can i use it in my C# app? TIA - sci ...more >>

I have a Windows Forms application that makes async calls to Web Services... When I run the application, initially everything is fine. If I leave the app running for about 20 minutes and then make a web service call, I get no response. I check the web server logs, but it appears the call neve...more >>

where can i find this in .Net?? Cheers, Craig ...more >>

hi all I want to lock text box so user can not edit the contents but user may copy the contents... This is done in vb6 by setting Locked property . But it is not avaiable in winforms... any workaround? Thanks in advance Ansari ...more >>

Is there a way in .NET framework to check which thread a particular windows forms control was created on? I want to check that a particular control was created on the same thread as my main form, from another arbitrary thread. I know the "InvokeRequired" property, but I need to marshall the co...more >>

1. RSS Feeds 2. Mobile Web 3. News Hello, Can anyone help translate the above 3 menu options above into any of the following languages? Any help would be much appreciated. Or does anyone know of resources for this type of stuff. I tried to use Google translation, but it chokes on tech stu...more >>

I have a CheckedListBox control on a form. Whenever I want to check the item in the CheckedListBox with the following code, it give me an error message 'Specified cast is not valid'. why chklstType.Items.Add("abc", True)...more >>

Hi. I have made a simple painting applcation. I have a mainform wich creates a class called drawingPanelwich inherit from Panel. In the drawingPaneli have overriden onPaint an the the painting. Now on my mainform i have a button called Print. I know how to print .....PrintPageEventArgs e (e....more >>

Hi Gurus I have a windows application that is deployed via ClickOnce (No Touch Deployment). It uses the CodeDom to create an assembly on the fly. The problem is that this assembly can't find it's referenced assemblies (IPSTypes.dll in the example below). It works fine when run locally but fai...more >>

Hello all! Please tell me how to determine thr previous focused control when the other control get focus. Enter and GotFocus events does not provide this information. -- With best regards, Mikhail ...more >>

I have a black and white bitmap in my app. White is transparent and the black needs to be converted to a different color. To manage this, I've created a ColorMatrix as follows: Color sortArrowColor_ = Color.FromArgb(184, 192, 201); float r = (float)sortArrowColor_.R / 255F; float g = (float...more >>

Help! I have a WinForm that at startup creates a custom principal (inherits from GenericPrincipal) and assign it and its roles to the current thread. The WinForm then loads a class library via Reflection. The class library works fine until I assign a security attribute to the class like...more >>

Dear All I am implementing a desktop application in arabic. i have made a menu (from right to left) i set the property, and when it run it appear from right to left But, when i press on any item, the Menu item is reversed suddenly (from left to right) while it is still right justified what...more >>

Hi all is it valid to use DISTINCT operator in select method of datatable? if yes then what is syntax? thanks in advance Ansari ...more >>

Hi: I'm having problems restoring the focus to my main window after calling a couple of dialog boxes. Sometimes the focus is restored, other times not. In my code, when setting up an account, the user clicks the button and the event handler for the button pops up. The event handler then ...more >>

I find the task of placing Text manually next to a TextBox a pain - which is only amplified when I move/align the textbox and then have to do the same with the text. Has anyone got example of a new class/component/helper which allows you to drop a textbox onto a form, and have a 'Caption' prop...more >>

I am trying to build an application in which I have some base forms (for example a base edit form) on which I have some basic controls that I will need on descendant forms (for example a grid and 2 buttons OK and Cancel) I have though lots of problems on forms I create inheriting from those bas...more >>

Hi, how can I set the PageSize in a pageSetupDialog-box ? I tried : objPageSetup.PageSettings.PaperSize.Kind = PaperKind.A4 but the Kind-property is read-only. So how ? Thanks Chris ********************************************************************** Sent via Fuzzy ...more >>

Hi I am developing a custom menu, where I need to put a 250 m.s. delay whenever user checks/unchecks a checked type of menu item. The reason is, we need to show the user, the changed option before dismissing the menu. Is there any option to do this in .NET Thank Prashanth...more >>

Hi Programming language = C I need to display the action which a button performs when the mouse moves over a toolbar(containing buttons) I tried using the toolbar_MouseMove event, but e.Button always returns "None", hence, it cannot be of use Can any body throw some light on this issue Alte...more >>

how can i view ms office word files in a windows form? what files will be neede i have visual studio .net installed in my computer p.s. : i am beginner and i dont know many things of vb.net and framework.net...more >>

I have a real hard time understanding all this color matrix stuff. Graphics has never been my strong suit but I keep getting dragged into it somehow. Anyway, here's what I need to do. I have a bitmap that is black and white. The white is transparent (easy enough with Bitmap.MakeTransparent(Col...more >>