Multiple instances of an application

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Winforms
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - ListView Problem I'm having a rather tedious problem with the listview control in visual basic.net I am trying to achive two simple procedures, I thought :) 1. I have only one column populated but still there is an extra empty column listed to the right of the header. Is there no way to specify that I only want a single column. Or is there a way to hide that unpopulated extra column that I don't want. 2. How exactly does one reference the text or value of the selected sub item. I would like to pass this text in my case to a function but I'm unable to get it. Sorry for the I'm sure simple questions, but I have googled my brains out and been over the docs and can find nothing to point me in the right direction. Thanks in advance -- Hunter Kirk Twilight Technologies, L.L.C. hunter@twilightech.com http://www.twilightech.com Tag: Multiple instances of an application Tag: 59768
  - 2
    - Very basic question - where to store data for a Windows app? I'm new to Windows Forms development (web-based development is my primary area of focus). I've been tasked to create a windows application that basically provided users the ability to take surveys - kinda like a telemarketing-based survey application. My question is this: what is the best mechanism for storing the data that users enter into the application? The options, that I'm aware of are: 1. MSDE (SQL Server Desktop Edition) 2. JET (MS Access-based database file) 3. XML 4. Serialized objects I'm unable to use a standard client/server approach here, as the application is considered "sometimes connected" - network access will not always be available. So, the app will have to temporily store the data locally until a network connection is found. I'm looking for input on the pros/cons for the approaches listed above and for any other options that are availabe. Also, pointers to online resources in this area would be greatly appreciated. Thanks in advance, Scott ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- Tag: Multiple instances of an application Tag: 59764
  - 3
    - Working with windows applications I=B4m working with C# and my question is: How can i open a windows application having it=B4s path? or=20 hoy can i open a file with it =B4s windows default=20 application having the path of that file? For example, if someone clicks on a word file i want=20 MSWord to open that file. Thanks for any help. Tag: Multiple instances of an application Tag: 59760
  - 4
    - Missing Events in C# I am learning C# for the Compact Framework. I put a PictureBox on a form. But when I click on the events button(on the Properties Tab), only ParentChanged, Validated and Validating are listed. There is no click event. But if I manually code for a Click event, it works. I added this line after the call to InitializeComponent() this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click); This works but I am curious as why it is not listed on the properties tab (its documented as a valid event) Thanks Srinivas Tag: Multiple instances of an application Tag: 59758
  - 5
    - save Excel with a windows form I have a windows form that traps an "before save" event in Excel 2000. What I would like to do is save the Excel in SQL Server by calling a web service. I thought I could have serialized Excel and send it to the web service as a string for database storage, but it seems that Excel cannot be serialized. This windows form will be a no touch deployment application so any extra software would be difficult. Any ideas? Thanks, Shane Tag: Multiple instances of an application Tag: 59755
  - 6
    - Updating a Windows DataGrid - with a stored proc. which has multiple joins Hello Everyone, I have a datagrid which is built based on a combobox.Text input. The data is coming from a stored procedure which has several joins ,to make the info more readable. However, I am only interested in editing fields in the table supplied by the combobox.Text. From what I have read you can use the command builder -- ONLY-- if you are selecting from one table. Is that correct? Is there a way to tell .NET Framework which table is the primary table and can be edited? Thank You in advance for Your Help, Ken Tag: Multiple instances of an application Tag: 59750
  - 7
    - Application.run issue I have an application that I do NOT want the form to be visible as this is a background application. I set the forms Visible property to false in the forms constructor. The application places an icon in the System Tray that has a menu to show the form if the user wishes to see it. I'm displaying the form by calling Application.Run ( form ). This forces the form to be visible. I overrode the OnVisibleChanged event in the form and it is called immedialely after the Application.Run call. Does anyone know a way to keep the form hidden? Thanks in advance Ken Tag: Multiple instances of an application Tag: 59749
  - 8
    - DataBinding could not find a row in the list ... ? I get the following exception message when I try to reopn a form window after closing it down (while the main MDI window is still running) "An unhandled exception of type 'System.Exception' occurred in system.windows.forms.dll Additional information: DataBinding could not find a row in the list that is suitable for all bindings" This message goes away when I unbind the datagrid object on the form from the datasource & datamember. This datagrid is bind to the Details DataRelation. whereas rest of the form is bind to the Master DataTable. Both the master and the DetailRelation table are in the same dataset. there is nothing fancy about the datagrid object it shows int type fields only and no checkbox or textboxes in it. I dont know where to go from here. I have researched this error in other newsgroup postings and nothing conclusive has been talked about it. Thanks in advance Aamir. Tag: Multiple instances of an application Tag: 59748
  - 9
    - Databinding - Refresh Problem I want to bind a control to a dataset that is inside another object. When the dataset in the object changes the changes are not reflected in my control. See the code below for more details... public class WinForm : System.Windows.Forms.Form { MyClass myObj; public WinForm() { ... myObj = new MyClass(); txt.DataBindings.Add(new System.Windows.Forms.Binding ("Text", myObj.myDS, "MyTable.MyField")); ... } // if changes are made to myObj.myDS the text inside the textbox won't change... } public class MyClass { public MyDS myDS; public MyClass() { myDS = new MyDS(); myDA.Fill(myDS); } } Any idea of what is wrong? Thanks a lot! Marc Tag: Multiple instances of an application Tag: 59746
  - 10
    - PropertyGrid Contol localized DisplayName I'm Using the PropertyGrid Contol , and have a requirement to display a localized property name. Therefore My Classes Implement ICustomTypeDescriptor, and return a custom PropertyDescriptor Collection, The issues is that in the Derived PropertyDescriptor object when overriding the "DisplayName" property it causes the PropertyGrid to call the "DisplayName" Property an inordinate number of times, which then makes the PropertyGrid, very slow and unusable. code Snippet ICustomTypeDescriptor. public PropertyDescriptorCollection GetProperties(Attribute[] attributes) { .Returns new PropertyDescriptorCollection containing MyPropertyDescriptor objects } public class MyPropertyDescriptor : PropertyDescriptor public override string DisplayName { get{return "Overriden DisplayName"} } Worth mentioning, if I comment out the DisplayName Override Property And run the code, then the grid functions as usual? Any one have any idea's why DisplayName gets called again and again, and how to prevent it? Cheers Brett Tag: Multiple instances of an application Tag: 59742
  - 11
    - Customizing textbox Is it possible to draw onto the textbox? I tried drawing with a paint delegate and overriding the paint method. The textbox still looks as it did before. It would be nice to be able to create textbox with variable font colors along with any graphics extra. Thanks, Brad Tag: Multiple instances of an application Tag: 59740
  - 12
    - Image serialization (not solved)... Here I come again with this question. I posted this in many forums and nobody gave an answer. Maybe there is no answer? So here goes: I use a custom CodeDomSerializer to add serialization to some members of a colection member of a custom control. One of these members is an Image Type. I use SerializeResource to actualy store the image and SerializeToExpression to create the deserialization code. It all works out fine *as long as* the ResourceManager object (resources) is already created on the parent form. This is the same object that gets created when you change the backgroundImage of the form. I did some reflection in the assemblies and I found out an internal class called SerializeResourceManager that seems to be doing this job (of checking if the ResourceManager object exists and if not create it). So the question is, from inside the CodeDomSerializer of a custom control, how can I access and check if the ResourceManager object exists as a member of the parent form and if not to create it? Do I need to access the DesignerHost? Anybody has any idea? Thank you!! Tag: Multiple instances of an application Tag: 59738
  - 13
    - Pls hlp urgent.Accessing one .net exe from another, assume both are running hi i have two .net exe applications running, both are using common dlls between them. i want to access some forms of one application from another application. i know using reflection we can instantiate any class of any exe. but this will create instance in the starter exe. but i want to open the screen asynchronously any idea/directions would be very much helpful Thanks to each one of you who spend sometime in reading/replying this.. thread.. Expecting your interactions Bye Sahridhayan chennai,India Tag: Multiple instances of an application Tag: 59736
  - 14
    - Converting long ip to quad-dof ip ? Is there any api call to do this faster than a function? couldnt find any in system.net, i have a function doing it now but i bet the framework could do it faster for me... thanks Tag: Multiple instances of an application Tag: 59732
  - 15
    - Gant Type Component Hi there I am looking for a .net component for something similar to a gant chart , however the objects must be to be linked back to a slq db and have events that I can set in my own menus, if anyone knows of such a component or complete package plz let me know. ThankX Tag: Multiple instances of an application Tag: 59727
  - 16
    - Validating event in windows forms Hi, i've a problem with Validating event. i've got a project with one form and 2 textbox controls. Control's propertys: - Textbox1.CausesValidation = true - Textbox1.CausesValidation = true - Form1.CausesValidation = false Code in Validating Event in textbox1 and textbox2. MsgBox("Error") When i try to change the focus from textbox1 to textbox2 or viceversa the message appears. Ok. But, when i press the control box to close de form (button X) the message appears too and the form doesn't close. Why? Thanks. (I'm sorry but my english is not good) Tag: Multiple instances of an application Tag: 59725
  - 17
    - adding an image to a treeview background Can I add an image to a treeview background, and if so how do I do it? TIA Tony Tag: Multiple instances of an application Tag: 59722
  - 18
    - change the backcolor of a column in a datagrid Hello I have a datagrid textboxcolumn setup as follows: Dim tcJobkey As New DataGridTextBoxColumn tcJobkey.MappingName = "Jobkey" tcJobkey.Width = 50 tcJobkey.HeaderText = "Job key" tcJobkey.ReadOnly = True Please could you tell me how to set the back colour of this particular column, if this is possible. Thanx Geraldine Tag: Multiple instances of an application Tag: 59721
  - 19
    - Windows message queue question Hi all! I'm writing a windows application, that contains a control that shows a bitmap. The bitmap is painted in the controls OnPaint method, using the Graphics.DrawImage method. It is possible to drag the bitmap around inside the control, using the mouse. While dragging the image, I call the controls' Invalidate method every time i get a MouseMove-event. So far so good. The problem is, that, when the image is large and I drag it around and then stop moving the mouse, the image often still keeps moving over the control for a few more seconds. I guess, this is caused by MouseMove events, still contained in the applications message queue. A profiling utility showed, that OnPaint was called exactly as often as MouseMove. I was surprised about that, since I thought that OnPaint would be called asynchronously and only when there is time for. Can anybody explain this to me? How can it happen, that there are MouseMove events in the queue for such a long time and why is OnPaint obviously called every single time, Invalidate is called? (I don't call Update!) Is there a possibility, to drop all MouseMove and Paint events, currently contained in the message queue, except the last ones? Does anyone know another solution for the problem? If this is the wrong NG for my question, wher else should I post it? Thanks for any comments Markus Tag: Multiple instances of an application Tag: 59719
  - 20
    - detecting a change in the datagrid Hello, could you tell me how to detect a change in the datagrid (i.e. when you actually change the data and click the pen symbol in the grid and not when you just tab to the next field). Therefore datagrid_currentcellchanged does not work. Thanx in advance Robert Tag: Multiple instances of an application Tag: 59717
  - 21
    - "uneditable" ComboBox I use the builtin ComboBox...the user can type in any value he/she wants.. can I limit it to Items I provided? thx.. Tag: Multiple instances of an application Tag: 59716
  - 22
    - User authentication in Web Service calls from a remote NTD app I am developing a Windows Forms application that makes requests to a web service and in return receives configuration data that is user specific, i.e. based on the user's window's authenication on the server side domain. My problem is that I am unaware as to how I should configure the app so that when it calls into the web service, the web server will be able to identify the user. Initially the application will be running on the same domain either over a LAN or though a VPN connection although it is anticipated that in the future connections may be made from a m/c outside this remit although the latter scenario does not have a high priority right now. Any illumination on this topic will be gratefully received. Thank you. Tag: Multiple instances of an application Tag: 59714
  - 23
    - How to get parent control e.g. I have a Form which contains a GroupBox which in turn contains a Custom Control that inherits from Button I can use this.ParentForm to get the From but how can I get the GroupBox (in this case only) (or any other control that contains the custom control) tjhx! Tag: Multiple instances of an application Tag: 59712
  - 24
    - Cannot remove windows form from .net project I had a windows form named "FormOrdersList" that I deleted from the .net project. During the deletion i was asked wether I wanted to update something on the very same form (I dont remember what it was) and I just clicked "yes" which I believed to be the default. Then I tried to add an inherited form with the name "FormOrdersList". I get the response that FormsOrderList cannot be added because it exists in the project from before. I then try to add a normal (not inherited) windows form named "FormOrdersList". This works fine as well as deletion. But when I try to add "FormOrdersList" as inherited form again I get the respons that the form exists in the project and cannot be added. What can I do to remove all garbage in the .net project for the old form?? Regards Tore Tag: Multiple instances of an application Tag: 59709
  - 25
    - Passing parameter to Smart Client application Hi I am creating a smart client application. The requirement is as such....An asp page gets loaded.(NOTE: an asp page gets loaded not aspx page). This page is actually a search page in which the user enters some input in a textbox. On the basis of the value entered, some results are displayed in form of links.On clicking the link, i want to call a smart client application by passing in some parameter that is returned along with the serach results. What i am doing is on clicking the resulted link, i am calling an aspx page.(NOTE: i am loading an aspx page. not asp page). Which in turn calls the smart client application. But the issue is that i am not able to pass the parameter to the exe. I need to do this because my smart client application does something on the basis of this parameter. Does anyone has any idea on how to pass parameter to the exe from the aspx page and how to use the parameter inside the exe. Thanks Suvendu Tag: Multiple instances of an application Tag: 59705
- Next
  - 1
    - DrawReversibleFrame draws on VS.Net not my form I am drawing in a picturebox on a form using DrawReversibleFrame and DrawReversibleLine. It used to draw fine on the picturebox, now all of a sudden it does not appear on my form or application, but on VS.NET behind my application. Has anyone seen this behaviour, and/or is there any form/app settings that would affect this? Thanks. Tag: Multiple instances of an application Tag: 59703
  - 2
    - can I have A datagrid that is invisible HI all can I have A datagrid that is invisible, inside that datagrid, i want to have serveral datagrids that are group by some headers Jason Tag: Multiple instances of an application Tag: 59702
  - 3
    - tabpage conceal hi, everybody, I want to conceal a tabpage from the user. I find tabpage has the hide method, I call it, but it dosen't work. The tabpage dosen't hide. Dose anyone have the same problem? Thanks. Tag: Multiple instances of an application Tag: 59701
  - 4
    - Form settings Hi What settings do I need so my main form touches the task bar but dope snot go over it. This is just like other applications do. Also, what happens on windows xp where a window's borders are thicker than on windows 2000? Thanks Regards Tag: Multiple instances of an application Tag: 59697
  - 5
    - BeginUpdate/EndUpdate causing mouse move I have implemented a custom control with BeginUpdate/EndUpdate functionality. The implementation of BeginUpdate basically sends the WM_SETREDRAW message by P/Invoking SendMessage and setting wparam to 0 and EndUpdate sends the same message with wparam = -1. When I invoke these methods on my custom control, I am also getting the MouseMove event. Has anyone else seen this? Is there a way to prevent the MouseMove event on the control when BeginUpdate/EndUpdate is called? Thanks, Abhishek Tag: Multiple instances of an application Tag: 59692
  - 6
    - WinForms inside Browser Can I start the Windows Form Application inside the IE Browser, like a Applet. Some article or code sample appr. Thx Nikolay Tag: Multiple instances of an application Tag: 59691
  - 7
    - run access report from VB .net I have some nice reports in MS Access that I want to run from an application in VB.net, is that possible? Like we could do in vb 5... Anyone can help me? Tag: Multiple instances of an application Tag: 59685
  - 8
    - ListView row height and custom text I am working with the ListView control and I only seem to be able to place regular text in each cell. I would like to place say a paragraph of text (that does not require the user to lengthen the column width), basically a word- wrap function inside a cell. I cannot seem to be able to place say a label control into a ListViewItem. Does anyone know if you can place controls other than text strings into a listview item or if there's an easy way to make column widths word-wrap instead of requiring resizing? Thanks so much! Tag: Multiple instances of an application Tag: 59678
  - 9
    - Databinding to custom class I have a custom class with its properties bound to controls on a Form. If I change the values of the controls, the changes are carried back to the object. Is there any way to reverse this - so that programmatic changes made to the object are reflected back to the form? I'm not making a list-type object, so I don't want to have to use IBindingList. Thanks, Dave Hagedorn Tag: Multiple instances of an application Tag: 59677
  - 10
    - Ser printdialog to default printer? Hi, There are four printers installed on our customer network. Each pc has a defaulted printer from one of those. My customer would like to see the his/her defaulted printer on PrintDialog class by default. Means when PrintDialog loads then the defaulted printer be high lighted. Currently the last printer in the list high lighted. Thanks in advance. Tag: Multiple instances of an application Tag: 59670
  - 11
    - Can anyone help with user controls Hi, can anyone help me with passing values from a user control to a parent form in a windows application. I have a button in my user control object that reads a value when clicked. How do I return that object to the parent form and trigger an event to update the form? thanks in advance! Tag: Multiple instances of an application Tag: 59667
  - 12
    - How to prevent Form submission if users hit enter. In my Web Form I have more than one Textbox for user input. If I hit enter to any Textbox its submitting the form. How can I prevent Form submission if users hit enter to the textbox? I want to submit the form only when user will hit submit button. Thanks for any help. Pamela. Tag: Multiple instances of an application Tag: 59666
  - 13
    - Strange ComboBox Behavior I am experiencing strange behavior working with multiple ComboBoxes on a form. I have several ComboBoxes that I configure in code the way I have in the past (only a single ComboxBox on the form). Whatever I configure the last ComboxBox to, it changes all the previous ComboBoxes to the same displayed value. Here is the code: private void Form1_Load(object sender, System.EventArgs e) { da.Fill(ds.tblQuestions); daTypes.Fill(ds.tblQuestionTypes); BindCB1(); BindCB2(); } private void BindCB1() { comboBox1.DataSource = ds; comboBox1.DisplayMember = "tblQuestionTypes.QuestionTypeDesc"; comboBox1.ValueMember = "tblQuestionTypes.QuestionTypeNumber"; comboBox1.DataBindings.Add("SelectedValue", ds, "tblQuestions.Question01Type"); comboBox1.DropDownStyle.Equals("DropDownList"); } private void BindCB2() { comboBox2.DataSource = ds; comboBox2.DisplayMember = "tblQuestionTypes.QuestionTypeDesc"; comboBox2.ValueMember = "tblQuestionTypes.QuestionTypeNumber"; comboBox2.DataBindings.Add("SelectedValue", ds, "tblQuestions.Question02Type"); comboBox2.DropDownStyle.Equals("DropDownList"); } Any help is greatly appreciated. Tag: Multiple instances of an application Tag: 59665
  - 14
    - nullref in base Form object I'm occasionally seeing this exception in our application and have no idea what could be causing it, making it very difficult to debug this error: System.NullReferenceException: Object reference not set to an instance of an object at System.Windows.Forms.ChildWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr v ...) any ideas ? thanks! Tag: Multiple instances of an application Tag: 59655
  - 15
    - Getting the actual size of my form Hi ! I want my app to fit the desktops boundries (like the taskbar) you get the available size, calling Screen.PrimaryDevice.workingArea. That works fine. But when i set the height of my form to that of the workingArea it is the menu height to large. So somehow the menu doesn't cares about the height of the form. First question, how do i get the height of the menu to substract it from the actual height of the form. The second thing is, to determine the actual drawingRectangle of my form, that mean first without the menu, okay. But the second thind is that calling this.ClientRectangle seems not to substract the Window Caption Bar with the maximizebox and close button. Second question, how do i get the height of the Forms Caption Bar. Thanks for the help, nick Tag: Multiple instances of an application Tag: 59651
  - 16
    - TreeNode collection without user data Hello, TreeNode collection inserted into TreeView does not (by my investigations) contain any reference to user supply data which could identify the node or could link some user data to the node. So how to achieve the aim. Ondra. Tag: Multiple instances of an application Tag: 59644
  - 17
    - Message Box Globalization Hi, First of all, sorry if this post is posted in the wrong newsgroup. My problem is the following: I'm building an VB.NET application for use in 8 countries. I've managed to create all windows forms for those 8 countries using the globalization technics. My problem is with message box strings. What I need is to have a resource file (like those in VB6) with MsgCode and Msg for those 8 countries. I need a function (function getMsg (msgCode as string) as string) so I can use it like messagebox.show(getMsg("xpto")). Any help on these two subjects (resource file and function) whould be very appreciated. This is a bit urgent. Best regards all Miguel Figueiredo Tag: Multiple instances of an application Tag: 59639
  - 18
    - MDI FORMS Hi All! Does anybody know how to collapse expanded windows to their original state? (not layout) Thanks! Tag: Multiple instances of an application Tag: 59630
  - 19
    - can I have a dataGrid with many subGrid insides?? any reference for this kind of example?? thx Jason Tag: Multiple instances of an application Tag: 59627
  - 20
    - How make item in listbox selected when mouse over it Hi all, When mouse move over the item I get the position of mouse anh then get index of item. When listbox control have scroll bar, how can I get i temin mouse position. Please tell me! Thank in advance. Tag: Multiple instances of an application Tag: 59626
  - 21
    - chain of responsibility Has anyone got a practical C# example of using the chain of responsibility in Windows Forms? For example, I have a button inside a container inside a TabPage, etc. If I click on the button I want to send a notify event up through the hierarchy. Thanks, Jamie. Tag: Multiple instances of an application Tag: 59625
  - 22
    - Form Resize Hi, When i do a dock change (meaning changing a component's docking property) the screen flickers. Is there a way to control flickering effect and provide a smooth resize. Thanks, Jagan Mohan Tag: Multiple instances of an application Tag: 59622
  - 23
    - How to drop down menu at run time? hi, im building a voice enabled application using VC#,in which we try to control the menu using Voice commands.. for example if thereb are menus like .. " file " " edit" ..etc then when i say file.. i want the file menu to drop down.. how do i do that? plz reply soon thank you arjun Tag: Multiple instances of an application Tag: 59621
  - 24
    - combo box selectIndex problem Hi All, I have a problem, if I have a combo box, displaying a name with a valueMember, when I have a selectIndexChange, I need to get back the value to do the binding a datagrid, but if the form load, it will fail because selectIndex is out of range Tag: Multiple instances of an application Tag: 59616
  - 25
    - what .cab should be include in the installation package? I finish a .net cf application (using SQL CE 2.0), and package it to a .cab file. This application is supposed to be run on PPC2003 PPC, should I include .net cf and SQL CE 2.0 installationn file in the package? Tag: Multiple instances of an application Tag: 59613

I have a .NET application that does data processing by
state (disconnected). The state to process is determined
by a command-line parameter. When I run multiple instances
of the application (which I need to be able to do), the
processing is handled fine. However, all instances after
the first one GPF when they complete their processing and
attempt to close.

Also -- I don't know if it is related, but the event log
contains this message for each app that GPF's: "Installing
the performance counter strings for .NETFramework failed.
The Error code is DWORD 0 of the Record Data."

Thanks for the input.

Russ Bishop
MCSD

Top