Datagrid reorders columns on Databind

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  - 1
    - How to host the ssrc report designer inside a winform application Hi, is there a can to host the report designer inside my winform application? I would like to be able to give the end user of my application the ability to make minor changes to the report. thanks Tag: Datagrid reorders columns on Databind Tag: 109603
  - 2
    - Edit Report Created in Report Designer within Rebuild Builder Hi, I have a couple of reports that I created within the SQL Report Designer, I would like to give the ability to the end user of C# Winform application to be able to make modification to this .rdl file using the Report Builder, however when I try and launch the report that I created within the Report Designer using the Report builder I get the following error.. Microsoft.ReportingServices.ReportBuilder.ReportModel.Report: The report 'http://localhost/ReportServer/MyReport)' cannot be opened because no data source is associated with it. Associate a model data source with this report and try again. How can I resolve this situation. Thanks Tag: Datagrid reorders columns on Databind Tag: 109602
  - 3
    - TreeView Question I have a tree view that i'm populating with a lot of heiracheral data. I only want to populate a node with children if the user expands it. However, that presents a problem. If I do not populate it with children then the expand/collapse bitmap does not appear. So, my question is how do I make the expand/collapse bitmap appear without actually adding any children nodes? Assume that I know there will be children nodes to add if the user expands it. -- -Demetri Tag: Datagrid reorders columns on Databind Tag: 109596
  - 4
    - Programming the Windows Forms Datagrid? Hi, Using Windows Forms 1.1 (VB.NET) I have a datagrid on my form and no datasource, just a collection of Parameters (for a stored procedure selected by the user at runtime) which have been populated by the user. I want to display all these parameters in the datagrid so the user can review them before executing the stored procedure. How do I dynamically add columns and rows to the datagrid please - I basically want to loop through the collection of parameters (in this case a VB Collection containing Oracle Parameter objects, but it can also be SQL Parameter objects)? thanks Philip Tag: Datagrid reorders columns on Databind Tag: 109594
  - 5
    - Referencing .NET classes from Crystal Reports Hi, I have a project containing all of my Domain object classes. I have another project containing my Crystal Reports. I cannot seem to reference my Domain objects on my Crystal Reports...when I go to the "Database Expert" wizard I only see .NET objects in the reports project. Surely the classes do not have to be defined locally? This is with VS 2005. Thanks, Paul Tag: Datagrid reorders columns on Databind Tag: 109591
  - 6
    - Is it possible to create library which start a User interface so as to be called by a Cconsole application I have programmed a multi thread C control application, and now I want to add User interface functionality to my main thread. I would like to know if i could generate a library from a MFC or Window form Screen and call it from my main thread. Thanks for your attention Tag: Datagrid reorders columns on Databind Tag: 109590
  - 7
    - UNC paths from drive mappings I can get a list of drive mappings via Directory.GetLogicalDrives but is there any way I can get the UNC path (eg. \\machine\sharename) for those drives that are mapped to network shares? Tag: Datagrid reorders columns on Databind Tag: 109589
  - 8
    - evlogxxxxx.bak files Hi experts, My Windows 2000 server system is suffering from too many evlogxxxxx.bak files. Please let me know followings: q1. when does system start to backup eventlog? I mean what trigger the system make the backup files. I set Overwrite events as needed. I cannot understand why system make the backup files. Please explain this as well. q2. how many days the system keep evlogxxxxx.bak files q3. Where is the setting for the valid date of evlogxxxxx.bak files in system? q4. Can I modify the valid date of backup files,evlogxxxxx.bak files? Thanks in advance, Richard. Tag: Datagrid reorders columns on Databind Tag: 109586
  - 9
    - Open Specific URL from Windows Desktop i am using C#.net and i want to open a specific url using windows brwoser . this is very easy to launch IE process and provide url . But url required authentication and i need to provide this authentication automatically. or can any body tell me how can i save password for specific url programatically. thanks Tag: Datagrid reorders columns on Databind Tag: 109582
  - 10
    - axWebBrowser control and javascript errors hi all, Has anyone come across working code for a Windows Forms application that uses AxWebBrowser control and is capable of intercepting and dealing with the 'Internet Explorer Script Error' (An error has occured in the script on this page') type errors. I know the WebBrowser control (the one that comes by default in Visual Studio Toolbox) has 'ScriptErrorsSuppressed' property that seems to achieve just that, but I don't have much time left for re-implementation. After doing some searching on the web, some of the possible solutions that I've seen included: 1) setting aXWebBrowser.Silent = true at an appropriate time. The downside of this approach is that some of the pop-ups are useful, such as authentication prompts etc. 2) implementing IOleDocumentSite, IOleClientSite and IDocHostShowUI interfaces and using IDocHostShowUI::ShowMessage for the purpose of intercepting the message box. I have attempted this but am yet to see the ShowMessage function invoked... 3) implementing IOleCommandTarget and the QueryStatus and Exec methods, and then watching out for the Exec invocation with OLECMDID_SHOWSCRIPTERROR. From what I understand this behaviour doesn't work if Disable Script Debugging check box is cleared in Internet Explorer settings. apologies that this post is not actually directly related to HtmlEditor :| regards, Greg Tag: Datagrid reorders columns on Databind Tag: 109579
  - 11
    - Cannot call Invoke or InvokeAsync on a control I have some sort of a concurrency problem that has me stumped. I have a form (actually several) that run background worker threads from the OnLoad method. Sometimes... occasionally... I get a crash dump from a user that indicates that I "cannot call Invoke or InvokeAsync on a control until the window handle has been created." Now, never mind that by the time OnLoad runs, the window handle should already be created. I decided that, hey, if that's the problem then I'll just patch it. My patched code is below. As you can see, in the DoBackgroundWork method I added a test for control.IsHandleCreated, and then if it's not I do a control.CreateControl. However, even after this patch I had a crash this morning with this same annoying message. 2007-03-01 06:36:54Z User mm_tboos on PRICTX99, running M:\program files\StockCodeGenerator\StockCodeGenerator.exe (StockCodeGenerator version 2.4.2615.30559) received the following exception: 2007-03-01 06:36:54Z System.InvalidOperationException: Cannot call Invoke or InvokeAsync on a control until the window handle has been created. 2007-03-01 06:36:54Z at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous) 2007-03-01 06:36:54Z at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args) 2007-03-01 06:36:54Z at Agama.Controls.BackgroundWorkParameters.DoBackgroundWork(Object parameter) Do I have misconceptions about when handle creation happens? Am I missing something here? Code follows. public delegate void BackgroundWorkDelegate(params object[] parameter); public delegate void ControlEnableDelegate(bool enable); private class BackgroundWorkParameters { private Control _callingControl; private BackgroundWorkDelegate _backgroundJob; private BackgroundWorkDelegate _finishJob; private object[] _parameters; private ControlEnableDelegate _enableControls; private Exception _finishException; public BackgroundWorkParameters(Control callingControl, BackgroundWorkDelegate backgroundJob, BackgroundWorkDelegate finishJob, object[] parameters, ControlEnableDelegate enableControls) { this._callingControl = callingControl; this._backgroundJob = backgroundJob; this._finishJob = finishJob; this._parameters = parameters; this._enableControls = enableControls; this._finishException = null; } public void ScheduleBackgroundJob() { this._callingControl.Cursor = Cursors.WaitCursor; if (this._enableControls != null) { this._enableControls(false); } ThreadPool.QueueUserWorkItem( new WaitCallback(DoBackgroundWork), null); } private void DoBackgroundWork(object parameter) { try { this._backgroundJob(this._parameters); } finally { if (!this._callingControl.IsHandleCreated) { this._callingControl.CreateControl(); } this._callingControl.Invoke( new MethodInvoker(FinishWork), null); if (this._finishException != null) { throw new ApplicationProgrammingErrorException( "Exception trapped while finishing background task.", this._finishException); } } } private void FinishWork() { this._finishException = null; try { if (this._finishJob != null) { try { this._finishJob(this._parameters); } catch (Exception ex) { this._finishException = ex; } } } finally { this._callingControl.Cursor = Cursors.Default; if (this._enableControls != null) { try { this._enableControls(true); } catch (Exception ex) { this._finishException = ex; } } } } } public static void BackgroundWork(Control callingControl, BackgroundWorkDelegate backgroundJob, BackgroundWorkDelegate finishJob, object[] parameters, ControlEnableDelegate enableControls) { BackgroundWorkParameters p = new BackgroundWorkParameters(callingControl, backgroundJob, finishJob, parameters, enableControls); p.ScheduleBackgroundJob(); } Tag: Datagrid reorders columns on Databind Tag: 109578
  - 12
    - What is the best way to modify report ( .rdl ) within c# winform app Hi, I have several reports within my c# winform application, I need to be able to give the user the ability to make minor modifications to some of these reports prior to running them. Currently I am making use of both .rdl and .rdlc reports within my application. the modifications that the user needs to be able to make are minor, usually they just need to change some static text within the page. What is the easist way for me to accomplish giving the user this ability. I have researched the ssrs rebuilder but that seems confusing, Looking forward to your suggestions, Thanks in advance... Tag: Datagrid reorders columns on Databind Tag: 109572
  - 13
    - Sending Form to a class Hello, I am trying to call a class and send the form as a parameter, but I don't know the syntax. In ASP, you would use "this.Page" as an example: HidePanelsHelper.HidePanels(this.Page) My question is what is the syntax for sending the form to a class? Thanks, sck10 In my Form, I have the following: protected void AppCodeHidePanels() { General HidePanelsHelper = new General(); HidePanelsHelper.HidePanels(What goes here); } In my class, I have the following: public void HidePanels(Form MyForm) { foreach(Control ctrl in MyForm.Controls) { if(ctrl is Panel) { ((Panel)(ctrl)).Visible = false; } } } Tag: Datagrid reorders columns on Databind Tag: 109570
  - 14
    - Loop through Controls using a class Hello, I just started using WinForms and built the following to hide panels: private void AppCodeHidePanels() { foreach(Control ctrl in this.Controls) { if(ctrl is Panel) ((Panel)(ctrl)).Visible = false; } } I would like to move this to a class so that All my forms can use the same code. My question is how do I reference the form that is calling it. I am assuming that you can't use "this.Controls". Thanks, sck10 Tag: Datagrid reorders columns on Databind Tag: 109566
  - 15
    - single instance on TS? I try the windows application framework properties (My.Application) option: Make single instance Application. but is not work on TS (terminal server). how I can make sure that only one session cross the all sessions? Tag: Datagrid reorders columns on Databind Tag: 109560
  - 16
    - Error When Trying to copy a row from a datagrid Hi, I have a vb.net windows form with a datagrid, and I am simply trying to click on a row, hit CTRL-C to copy and then CTRL-P to paste it somewhere else. This works fine for individual cells. When I try it with an entire row however, I get the following error: DataGridColumnStyle of '' cannot be used because it is not associated with a Property or Column in the DataSource. This error occurs as soon as I hit CTRL-C. Strangely the unhandled exception occurs at the definition of the parent form ("Public Class Mainform"), even though the datagrid is located on a child form. Does anyone know what is going on. I want to be able to copy and paste whole rows, but even if I can't, I really can't have the users getting unhandled errors for trying. Anyone seen this before? Tag: Datagrid reorders columns on Databind Tag: 109559
  - 17
    - Non-Modal Forms I have these forms that are going to be displayed and require the user to respond to the options on the form but there is not specific time that user will make the chooses on the form. What is the best way to handle this situation. Create events and raise the event when the user makes the choose or is there a better way to discover what the user selected. Variables? TIA JerryM Tag: Datagrid reorders columns on Databind Tag: 109558
  - 18
    - Webbrowser Control and multiply document complete (Frame sites) We have the following problem. We are using the system.windows.forms.webbrowser control to navigate and interact with some webpages. When the document contains frames we are getting multiply documentcomplete events. Is there any way to know when the FULLDOCUMENT (all the frames) complete? Also the event on the same page fires different times on each test (maybee the caching?) -- Mike Evans Tag: Datagrid reorders columns on Databind Tag: 109557
  - 19
    - Propertygrid issue Hi, I have an application which has two winforms. One is the parent form which has around 20 odd controls. And the other has a propertygrid and two buttons, viz OK and Cancel. This form runs in the designerhost. Hence if a property is changed the componentchanged event fires and changes are seen on the control on my first form. Is there a way to defer this event such that on click of OK button the changes are reflected and on click of cancel i get an option to rollback or revert the changes. Thanks for all the help. Regards Ser Tag: Datagrid reorders columns on Databind Tag: 109556
  - 20
    - Forms and namespaces in vb.net Hi, What is the best way to assign a form to a namespace in VB.NET with VS 2005? I have this project with dozens of Forms and im beggining to need a pretty good imagination to find different names for them!!! Thx Tag: Datagrid reorders columns on Databind Tag: 109555
  - 21
    - Opening MDI Child From MDI Child Form, like VisStudio Start Page Hi, I have an MDI application which contains a start page with a listview of items in it that can be used to click on and open as a child form. So the start page is the child at start up of form. However, when I try to open another child from this start form it opens ok, but will not show or focus on the new form, it keeps coming back to itself? Why would this be? I open the form like so from the start page. MPE.PolForm polWin = new MPE.PolForm(); polWin.Show(); and then in the polForm I do this.MdiParent = mainForm; and mainForm.windowManagerPanel1.AddWindow(this) Any ideas? The windowManagerPanel1 is a tabbed form control that behaves like visual studio 2005. Why does it always go back to the start form and not show the new created form. Thanks Jenbo Tag: Datagrid reorders columns on Databind Tag: 109552
  - 22
    - MDI Form Hello how can i make to pass a child form to foreground ? thx //********************** Bonjour, comment puis je faire pour repasser un formulaire MDI enfant au premier plan?? merci //************************ Tag: Datagrid reorders columns on Databind Tag: 109551
  - 23
    - Problem with label word wrap and accented characters Hi, It seems that the .NET Label control incorrectly wraps words at accented characters (or non-ascii characters in general). The same is observed when using Graphics.DrawString() directly. I am using .NET Framework 1.1. The text "Vous obtiendrez une meilleure traduction en Ã©vitant les abrÃ©viations et les tournures familiÃ¨res." is wrapped by the label as follows: Vous obtiendrez une meilleure traduction en Ã©[\n] vitant les abrÃ©viations et les tournures familiÃ¨[\n] res If I simply remove the diacritics, it wraps correctly: Vous obtiendrez une meilleure traduction en[\n] evitant les abreviations et les tournures[\n] familieres I also observe incorrect word wrapping when using the Greek alphabet. Where can I find information about this problem? Is there a solution? Thank you, Bret Tag: Datagrid reorders columns on Databind Tag: 109550
  - 24
    - AutoResizeColumns in a DataGridView Hi All VS 2005 SP1 I use a DataGridView to display some figures. I have a cellpainting event that displays a couple of numbers in bold and other numbers in regular font style. When i double click the Column devider it resizes the column so that the regular formated columns fit in but not the bold formated columns. What is te best workaround for this problem? I tryed overwritting the ColumnDividerDoubleClick event: private void gridEditColumn_ColumnDividerDoubleClick(object sender, DataGridViewColumnDividerDoubleClickEventArgs e) { Font font = new Font(gridEditColumn.DefaultCellStyle.Font, FontStyle.Bold); Graphics g = gridEditColumn.CreateGraphics(); Size s; int width = 0; for (int i = 0; i < gridEditColumn.Rows.Count; i++) { s = g.MeasureString(gridEditColumn.Rows[i].Cells[e.ColumnIndex].FormattedValue.ToString(), font).ToSize(); if (width < s.Width) { width = s.Width; } } gridEditColumn.Columns[e.ColumnIndex].Width = width; e.Handled = true; } but the width i get is still to small so that the bold value doesn't fit in... i'm scared to just add a couple of pixels to the width...or do i have to do so? is there a better way to do it? thanks for your help. jahrens Tag: Datagrid reorders columns on Databind Tag: 109549
  - 25
    - Nice GUI Hi How can i create a GUI like this one: http://www.kynosarges.de/NDoc.html My .NET Tools always looks like old NT-Applications except the Menustrip and the statusbar. Is there perhaps a good tutorial to build nice GUI's? Thx a lot for each information ;) Greetz Tag: Datagrid reorders columns on Databind Tag: 109548
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  - 1
    - Europe Tests Established Chemicals on Millions of Animals Tony Nottingham England 28 February 2007 TO: All People Who Care A new European Chemical Testing Policy called REACH has now been finalised by the European Union. Under these proposals Chemicals of every kind - from those used in industrial processes to the ingredients of consumer products - will be tested on Millions of animals from mice to fish to dogs, causing untold suffering. Still worse, because of this reliance on outdated animal techniques, reliable and relevant information will not be provided and our safety will not be assured. If you believe that REACH should make more use of Alternative Testing to test 1000s of Chemicals that have been in general use since before 1985 then please take action now. If you are a European citizen please contact your local papers and own MEP asking them to promote the development of humane non-animal testing methods under the REACH legislation, which is the best hope we have for sparing animals the misery of a testing laboratory. A sample letter can be found at the BUAV (British Union for the Abolition of Vivisection) website at www.BUAV.org (Select Campaigns, Chemical Testing, Get Active then Writing to the local press). For all Non-European members, you can still help. Please tell all your colleagues and friends in the UK and Europe about REACH. Write to your own local papers to try and inform others about what is going on in Europe. The website for the European Parliament is http://www.europarl.europa.eu. Information on REACH, the New European Chemical Testing Policy can be found here. Everyone can help and you can make a difference. Thank You Tag: Datagrid reorders columns on Databind Tag: 109546
  - 2
    - datagridview and combobox Hi, I have dataset "kupci" I bind datagridview to dataset. Bu I have a problem in combobox column in datagridview. I can't see data. In textbox column is OK! In combobox I want bind "sifra" from dataset "kupci" Sorry for my English. :) Lp, Tag: Datagrid reorders columns on Databind Tag: 109541
  - 3
    - .NET application error I'm sorry to post here, but the MCP Partner Hotline stated I had to try the managed newsgroups on this issue. If this is the wrong board, please direct me to the correct one. I'm trying to use the Microsoft Certified Partner "Small Business Assessment Toolkit" found at https://partner.microsoft.com/assesssmbneeds and I have met the prerequisites by having XP Pro SP2, .NET Framework 2.0, and Infopath 2007 installed. When I try to run the install for this assessment tool, the application installation begins normally, but stops quickly into the install with the error: "Unable to install or run the application. The application requires that the assembly System.AddIn.Contract Version 2.0.0.0 be installed in the Global Assembly Cache (GAC) first." I have no idea how to get this assembly installed. Can anyone help me on this? I appreciate your time. Thanks. Tag: Datagrid reorders columns on Databind Tag: 109540
  - 4
    - datetime picker problems Hello we have encountered the following problems with the date time picker control A : datetime picker control gives focus to last entered field when moving back and forward with focus how do we reset this to the first field ? B : datetime picker in DD-MM-YYYY default format ( europe , NL-NL localization ) refuses an entry of 31 on the DD filed cause the month is already chosen to the current mont ( (02) februari wich only has 28 days ) steps to reproduce these problems A : can be reproduced on any system Throw a datetime picker control , and a textbox on a form ,set the Datetime picker format to short , start the project , now enter a date , move the focus to the textbox with the tab key , move the focus back with the tabkey , you will notice that the when the focus is given back to the datetime picker control it will select ( highlight ) the last entry box instead of the first that we expected B : can only be reproduced on a system with DD-MM-YYYY settings , when the form is started the Datetime picker will start with the current month ( 2 ) however if i want to enter 31-12-2006 i need to change the month part first Why is the above a problem ? Well we are currently building a production system , and for data entry this behavior is verry unwanted as it will take extra steps for the operator to enter valid data in the system . For B : i have coded a solution however not completely to my satisfaction i just default the control to 31-12-YYYY ( where YYYY = the current year ) however A: is a serious problem that i can`t solve yet regards Michel Tag: Datagrid reorders columns on Databind Tag: 109535
  - 5
    - Do we have a better approach? Hi, friends, I am using .net 2005 to develop a window form application. It has about 15 buttons (with icon on them) which need to be visible/invisible dynamically based on user's selection and rights. I know I can create 15 buttons and handle them individually, including moving their positions around if its neighbor buttons are invisible. But, do we have a better appoach to do this? Any reference paper or sample code? Thanks a lot. Tag: Datagrid reorders columns on Databind Tag: 109533
  - 6
    - Remove last row in a unbound datagridview Hi All, I have a undound DataGridView. That is, I am populating the DataGridView using the DataGridView.Rows.Add() call and by setting the values to individual cells in the row. When I am adding data to the DataGridView using such a method, I am getting an unwanted row at the bottom of the DataGridView. I want to avoid this row. Any help with respect to this is highly appreciated. I am not planning to use databinding for the DataGridView. Since, the DataGridView has 7 columns. I should be able to sort the DataGridView using any of these seven columns. If I use the databinding, it will be difficult to sort the view. Hence, using the Default sort of the DataGridView helps me in this case. But the presence of last row in the DataGridView should not be supported. So, please tell me a good method, using which I can remove the unwanted last row in the DataGridView. Thanx In Advance, Sudeesh G Tag: Datagrid reorders columns on Databind Tag: 109527
  - 7
    - How would I tell when a winform is "dirty"? I need to know if at least one of the winform's controls have been edited by the user. Controls can have textboxes, combo boxes, datagrid, etc. If any one of the forms have been touched and the user hits the exit button, I want the form to ask if the changes should be saved to the database. So what I am looking for is really simple. Thanks. Tag: Datagrid reorders columns on Databind Tag: 109518
  - 8
    - How would I tell when a winform is "dirty"? I need to know if at least one of the winform's controls have been edited by the user. Controls can have textboxes, combo boxes, datagrid, etc. If any one of the forms have been touched and the user hits the exit button, I want the form to ask if the changes should be saved to the database. So what I am looking for is really simple. Thanks. Tag: Datagrid reorders columns on Databind Tag: 109517
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    - How to improve performance for stock exchange data display received from third party com component Hi, I could not get the answer on the Performance community hence forwarding the same issue here... I am using a third party COM component to get very very fast data stream. I have dragged the com component on a windows form. Now we can request the data for specific symbols on this com component and in turn it will start pouring in data in form of continuous events for the requested symbols. The problem is that data stream is too fast and can easily make the CPU go to 100%. The tricks which I am thinking to tackle the issue are ... 1) Instantiate the com component form on the new thread and put the data in alternate generic dictionaries (We have 2 side by side dictionaries. One dictionary start filling with data then other dictionary is being accessed by the consumer module) . So a dedicated thread of consumer class with poll in the alternated dictionary after a certain time interval, set the flag on 1 dictionary and start copying the data from alternated dictionary to another datastructure BindableDictionary(It is a wrapper arround 2 data structures - 1 BindingList<> and 1 Dictionary<>. As the name suggest, as soon as the consumer module copies data in BindableDictionary, it start displaying it on UI.) [STAThread] private void InstantiateCOMComponent(object state) { _comManager = comComponentForm.GetInstance(); Application.Run(new comComponentForm()); _comManager.Visible = false; } but as soon as we try to instantiate the COM component on the new thread, it gives the error - Message "ActiveX control '7b0deade-e17b-11d2-93e6-00a0c91827c9' cannot be instantiated because the current thread is not in a single-threaded apartment." 2) Because of the com component error, Another alternative could be to apply the com component on a windows form in a new exe and make it a server. Then supply data through sockets to clients. Please suggest/comment about the alternatives given above or any better way of solving the business problem. I appreciate you reading a long email. Thanks & Regards, Rajat Tandon. rajat_tandon2000@yahoo.com. Tag: Datagrid reorders columns on Databind Tag: 109512
  - 10
    - how to mimimize an application Hi I am using C#, i dont know to know how to minimize the application in Taskbar when i click the button(its not minimizebox button), that means how to handle it?? normally if u click the minimize button on the form it will minimize the form, how can i do it in a simple button click event Regards Saravanan Tag: Datagrid reorders columns on Databind Tag: 109511
  - 11
    - Binging custom objects to the DataGridViewComboBoxColumn Hi, I have bound a collection of type IBindingList to a DataGridView. Each object in the collection contains various string properties, Customer Name, Contact Name etc. It also contains a property 'MyOrder' of custom type 'Order'. The Order class simply contains properties like OrderID, OrderName etc. I add the columns to the Grid of type DataGridViewTextBoxColumn for the strings and DataGridViewComboBoxColumn for the 'Order' object, the code for the combo column is as follows: DataGridViewComboBoxColumn cboCustmomerOrder = new DataGridViewComboBoxColumn(); cboCustmomerOrder.HeaderText = "Order"; cboCustmomerOrder.DataPropertyName = "MyOrder"; cboCustmomerOrder.Name = "OrderName"; //cboCustmomerOrder.ValueType = Order; cboCustmomerOrder.DataSource = m_Cust.OrderCol; this.dataGridView1.Columns.Add(cboCustmomerOrder); The datasource is set to a collection of type Order (List<Order>) Everything displays OK and I can make selections from the dropdowns. When I try to tab away however, I get the following error: [System.FormatException] = {"Invalid cast from 'System.String' to 'BusinessComponentExample.Order'."} I have spent ages trying to find out how to handle this but so far only found that the error can be trapped as follows: private void dataGridView1_DataError(object sender, DataGridViewDataErrorEventArgs e) { if (e.Exception != null && e.Context == DataGridViewDataErrorContexts.Commit) { //Do something } } Obviously I need to cast to type 'Order', but my question is how? Hope this all makes sense, please let me know if not. Would be delighted to get an answer or a pointer to a good tutorial. Couldn't find any that explain how to do this. Steve Tag: Datagrid reorders columns on Databind Tag: 109504
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    - MI5 Persecution: Troubling Censorship Issues 20/8/95 (4861) Fred Read (postmaster@foxhouse.demon.co.uk) wrote: : He posts this drivel every week or so to a number of groups that : I subscribe to and nothing seems to stop him. *ALL* of his posts : are off topic and unwelcome to the groups he posts to. : We have complained about him to his postmaster on at least four : previous occasions and he still posts the same crap. As his SP : seem unwilling, or unable, to do anything about him, we were : windering if there was anything you could do? If he is not actively using tactics to avoid or sabotage killfiles (posting from various systems, forging, massive crossposting to create cross-newsgroup flame wars) then it should be quite easy to killfile him. It does seem that the frequency and the size of his posts are approaching net abuse. However, IMHO, they aren't quite there yet. If his postmaster were to act in this instance, it would raise troubling censorship issues. -- Karen Lofstrom lofstrom@lava.net --------------------------------------------------------------------- "Adventures for those of the inadmissable kind, with no follow through." --- a flaming bonzo beckwithian idiot 4861 Tag: Datagrid reorders columns on Databind Tag: 109502
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    - Basic Separator Line Control Hello, I finally have to breakdown and ask..... Is there a basic "Separating Line" control or "Bevel Line" control. It appears as a simple 3D line. I'd like to know if there is such a control or will I have to create my own line control? Examples: (Observe lines on these screen) 1) Use any generic file, Right-click file --> Properties --> General Tab 2) Open any Setup Wizard, observe line appearing between buttons wizard content. Thank you Tag: Datagrid reorders columns on Databind Tag: 109501
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Hi everyone.
I encountered a weirdest problem. Every time i databaind a dataset to the
grid it reorders the columns.

Any ideas????

Thanks a lot!

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Re: Datagrid reorders columns on Databind by Rad

Rad
Fri Mar 02 18:34:39 CST 2007

On Fri, 2 Mar 2007 13:18:44 -0600, LQQKIN wrote:

> Hi everyone.
> I encountered a weirdest problem. Every time i databaind a dataset to the
> grid it reorders the columns.
>
> Any ideas????
>
> Thanks a lot!

Are you automatically generating the columns?
--
Bits.Bytes
http://bytes.thinkersroom.com

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Re: Datagrid reorders columns on Databind by LQQKIN

LQQKIN
Fri Mar 02 22:31:51 CST 2007

I have them predefined in the designer. I changed the order of the columns
coming out of SP and it seems to work, but thats not the best way to do it.

Thanks for yuour help!

"Rad [Visual C# MVP]" <nospam@nospam.com> wrote in message
news:kkcxh47n1yua.dlg@thinkersroom.com...
> On Fri, 2 Mar 2007 13:18:44 -0600, LQQKIN wrote:
>
>> Hi everyone.
>> I encountered a weirdest problem. Every time i databaind a dataset to the
>> grid it reorders the columns.
>>
>> Any ideas????
>>
>> Thanks a lot!
>
> Are you automatically generating the columns?
> --
> Bits.Bytes
> http://bytes.thinkersroom.com

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