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  • WPF DataGrid window resize does not resize DataGridColumns

    - by skylap
    I have a WPF DataGrid (from the WPFToolkit package) like the following in my application. <Controls:DataGrid> <Controls:DataGrid.Columns> <Controls:DataGridTextColumn Width="1*" Binding="{Binding Path=Column1}" Header="Column 1" /> <Controls:DataGridTextColumn Width="1*" Binding="{Binding Path=Column2}" Header="Column 2" /> <Controls:DataGridTextColumn Width="1*" Binding="{Binding Path=Column3}" Header="Column 3" /> </Controls:DataGrid.Columns> </Controls:DataGrid> The column width should be automatically adjusted such that all three columns fill the width of the grid, so I set Width="1*" on every column. I encountered two problems with this approach. When the ItemsSource of the DataGrid is null or an empty List, the columns won't size to fit the width of the grid but have a fixed width of about 20 pixel. Please see the following picture: http://img169.imageshack.us/img169/3139/initialcolumnwidth.png When I maximize the application window, the columns won't adapt their size but keep their initial size. See the following picture: http://img88.imageshack.us/img88/9362/columnwidthaftermaximiz.png When I resize the application window with the mouse, the columns won't resize. I was able to solve problem #3 by deriving a sub class from DataGrid and override the DataGrid's OnRenderSizeChanged method as follows. protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo) { base.OnRenderSizeChanged(sizeInfo); foreach (var column in Columns) { var tmp = column.GetValue(DataGridColumn.WidthProperty); column.ClearValue(DataGridColumn.WidthProperty); column.SetValue(DataGridColumn.WidthProperty, tmp); } } Unfortunately this does not solve problems #1 and #2. How can I get rid of them?

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  • Silverlight and WCF Ria Services

    - by Flex_Addicted
    Hi guys, I've created a new Silverlight 3 Business Application with VS 2008. The creation has completed correctly. When I try to open the xaml, it opens but in meanwhile this error is shown: Failed to load metadata assembly System.Windows.Controls.Data.Input.Design, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35. Exception message: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.. Stack Trace: at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark) at System.Reflection.Assembly.GetTypes() at MS.Internal.Package.MetadataLoader.RegisterDesignTimeMetadata(Assembly assembly, LogCallback logger)An exception of type ArgumentNullException was caught when calling IRegisterMetadata on type System.Windows.Controls.Data.Input.VisualStudio.Design.MetadataRegistration. Exception Message: Value cannot be null. Parameter name: type. Stack Trace: at Microsoft.Windows.Design.Metadata.AttributeTableBuilder.AddCallback(Type type, AttributeCallback callback) at System.Windows.Controls.Data.Input.VisualStudio.Design.MetadataRegistration.AddAttributes(AttributeTableBuilder builder) at System.Windows.Controls.Design.Common.MetadataRegistrationBase.BuildAttributeTable() at System.Windows.Controls.Data.Input.VisualStudio.Design.MetadataRegistration.Register() at MS.Internal.Package.MetadataLoader.RegisterDesignTimeMetadata(Assembly assembly, LogCallback logger)Failed to load metadata assembly System.Windows.Controls.Design, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35. Exception message: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.. Stack Trace: at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark) at System.Reflection.Assembly.GetTypes() at MS.Internal.Package.MetadataLoader.RegisterDesignTimeMetadata(Assembly assembly, LogCallback logger)Failed to load metadata assembly System.Windows.Controls.Navigation.Design, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35. Exception message: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.. Stack Trace: at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark) at System.Reflection.Assembly.GetTypes() at MS.Internal.Package.MetadataLoader.RegisterDesignTimeMetadata(Assembly assembly, LogCallback logger) Why? Any solutions? Thank you in advance.

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  • Combo box in a scrollable panel causing problems

    - by Dennis
    I have a panel with AutoScroll set to true. In it, I am programmatically adding ComboBox controls. If I add enough controls to exceed the viewable size of the panel a scroll bar appears (so far so good). However, if I open one of the combo boxes near the bottom of the viewable area the combo list isn't properly displayed and the scrollable area seems to be expanded. This results in all of the controls being "pulled" to the new bottom of the panel with some new blank space at the top. If I continue to tap on the drop down at the bottom of the panel the scrollable area will continue to expand indefinitely. I'm anchoring the controls to the left, right and top so I don't think anchoring is involved. Is there something obvious that could be causing this? Update: It looks like the problem lies with anchoring the controls to the right. If I don't anchor to the right then I don't get the strange behavior. However, without right anchoring the control gets cut off by the scroll bar. Here's a simplified test case I built that shows the issue: public Form1() { InitializeComponent(); Panel panel = new Panel(); panel.Size = new Size(80, 200); panel.AutoScroll = true; for (int i = 0; i < 10; ++i) { ComboBox cb = new ComboBox(); cb.Anchor = AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Top; cb.Items.Add("Option 1"); cb.Items.Add("Option 2"); cb.Items.Add("Option 3"); cb.Items.Add("Option 4"); cb.Location = new Point(0, i * 24); panel.Controls.Add(cb); } Controls.Add(panel); } If you scroll the bottom of the panel and tap on the combo boxes near the bottom you'll notice the strange behavior.

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  • asp.net 4.0 webforms - how to keep ContentPlaceHolder1_ out of client id's in a simple way?

    - by James Manning
    I'm attempting to introduce master pages to an existing webforms site that's avoided using them because of client id mangling in the past (and me not wanting to deal with the mangling and doing <% foo.ClientID % everywhere :) GOAL: use 'static' id values (whatever is in the server control's id attribute) except for data-bound / repeating controls which would break for those cases and therefore need suffixes or whatever to differentiate (basically, Predictable) Now that the site migrated to ASP.NET 4.0, I first attempted to use ClientIDMode of Static (in the web.config) but that broke too many places doing repeating controls (checkboxes inside gridviews, for instance) since they all resulted with the same id. So, I then tried Predictable (again, just in the web.config) so that the repeating controls wouldn't have conflicting id's, and it works well except that the master page content placeholder (which is indeed a naming container) is still reflecting in the resulting client id's (for instance, ContentPlaceHolder1_someCheckbox). Certainly I could leave the web.config setting as static and then go through all the databound/repeating controls switch them to Predictable, but I'm hoping there's some easier/simpler way to get that effect without having to scatter ClientIDMode attributes in those N number of places (or extend all those databound controls with my own usercontrol that just sets clientidmode, or whatever). I even thought of leaving web.config set to static and doing a master or basepage handler (preinit? not sure if that would work or not) that would go walk Controls with OfType<INamingContainer() (might be a better choice on the type, but that seems like a good starting choice looking at repeater and gridview) and then set those to Predictable so I'd get static for all my 'normal' things outside of repeating controls but not have to deal with static inside things like gridview/repeater/etc. I don't see any way to mark the content placeholder such that it 'opts out' of being included in child id's - setting the ID of the placeholder to empty/blank doesn't work as it's a required attribute :) At that point I figured there was a better/simpler way that I was missing and decided to ask on SO :) Edit: I thought about changing all my 'fetch by id' jquery calls from $('#foo') to fetch_by_id('foo') and then having that function return the 'right one' by checking $('#foo').length and then $('#ContentPlaceHolder1_foo').length (and maybe other patterns) or even just have it return $('#foo, #ContentPlaceHolder1_foo') (again, potentially other patterns) but changing all the places I fetch elements by id seemed pretty ugly too, and I'd like to avoid that abstraction layer if possible to do so easily :)

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  • Selectively disabling WebControl elements

    - by NeilD
    I have an ASP.Net MasterPage with a PlaceHolder element. The contents of the PlaceHolder can be viewed in two modes: read-write, and read-only. To implement read only, I wanted to disable all inputs inside the PlaceHolder. I decided to do this by recursively looping through the controls collection of the PlaceHolder, finding all the ones which inherit from WebControl, and setting control.Enabled = false;. Here's what I originally wrote: private void DisableControls(Control c) { if (c.GetType().IsSubclassOf(typeof(WebControl))) { WebControl wc = c as WebControl; wc.Enabled = false; } //Also disable all child controls. foreach (Control child in c.Controls) { DisableControls(child); } } This worked fine, and all controls are disabled... But then the requirement changed ;) NOW, we want to disable all controls except ones which have a certain CssClass. So, my first attempt at the new version: private void DisableControls(Control c) { if (c.GetType().IsSubclassOf(typeof(WebControl))) { WebControl wc = c as WebControl; if (!wc.CssClass.ToLower().Contains("someclass")) wc.Enabled = false; } //Also disable all child controls. foreach (Control child in c.Controls) { DisableControls(child); } } Now I've hit a problem. If I have (for example) an <ASP:Panel> which contains an <ASP:DropDownList>, and I want to keep the DropDownList enabled, then this isn't working. I call DisableControls on the Panel, and it gets disabled. It then loops through the children, and calls DisableControls on the DropDownList, and leaves it enabled (as intended). However, because the Panel is disabled, when the page renders, everything inside the <div> tag is disabled! Can you think of a way round this? I've thought about changing c.GetType().IsSubclassOf(typeof(WebControl)) to c.GetType().IsSubclassOf(typeof(SomeParentClassThatAllInputElementsInheritFrom)), but I can't find anything appropriate!

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  • How to use the FindControl function to find a dynamically generated control?

    - by Abe Miessler
    I have a PlaceHolder control inside of a ListView that I am using to render controls from my code behind. The code below adds the controls: TextBox tb = new TextBox(); tb.Text = quest.Value; tb.ID = quest.ShortName.Replace(" ", ""); ((PlaceHolder)e.Item.FindControl("ph_QuestionInput")).Controls.Add(tb); I am using the following code to retrieve the values that have been entered into the TextBox: foreach (ListViewDataItem di in lv_Questions.Items) { int QuestionId = Convert.ToInt32(((HiddenField)di.FindControl("hf_QuestionId")).Value); Question quest = dc.Questions.Single(q => q.QuestionId == QuestionId); TextBox tb = ((TextBox)di.FindControl(quest.ShortName.Replace(" ",""))); //tb is always null! } But it never finds the control. I've looked at the source code for the page and the control i want has the id: ctl00_cphContentMiddle_lv_Questions_ctrl0_Numberofacres For some reason when I look at the controls in the ListViewDataItem it has the ClientID: ctl00_cphContentMiddle_lv_Questions_ctrl0_ctl00 Why would it be changing Numberofacres to ctl00? Is there any way to work around this? UPDATE: Just to clarify, I am databinding my ListView in the Page_Init event. I then create the controls in the ItemBound event for my ListView. But based on what @Womp and MSDN are saying the controls won't actually be created until after the Load event (which is after the Page_Init event) and therefore are not in ViewState? Does this sound correct? If so am I just SOL when it comes to retrieving the values in my dynamic controls from my OnClick event?

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  • Is there an Easier way to Get a 3 deep Panel Control from a Form in order to add a new Control to it programmatically?

    - by Mark Sweetman
    I have a VB Windows Program Created by someone else, it was programmed so that anyone could Add to the functionality of the program through the use of Class Libraries, the Program calls them (ie... the Class Libraries, DLL files) Plugins, The Plugin I am creating is a C# Class Library. ie.. .dll This specific Plugin Im working on Adds a Simple DateTime Clock Function in the form of a Label and inserts it into a Panel that is 3 Deep. The Code I have I have tested and it works. My Question is this: Is there a better way to do it? for instance I use Controls.Find 3 different times, each time I know what Panel I am looking for and there will only be a single Panel added to the Control[] array. So again Im doing a foreach on an array that only holds a single element 3 different times. Now like I said the code works and does as I expected it to. It just seems overly redudant, and Im wondering if there could be a performance issue. here is the code: foreach (Control p0 in mDesigner.Controls) if (p0.Name == "Panel1") { Control panel1 = (Control)p0; Control[] controls = panel1.Controls.Find("Panel2", true); foreach (Control p1 in controls) if (p1.Name == "Panel2") { Control panel2 = (Control)p1; Control[] controls1 = panel2.Controls.Find("Panel3", true); foreach(Control p2 in controls1) if (p2.Name == "Panel3") { Control panel3 = (Control)p2; panel3.Controls.Add(clock); } } }

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  • Integrating PayMill: The token filled input field is not created, error "field_invalid_amount"

    - by automatix
    I'm implementing the Credit Card Payment form of PayMill according to the Payment Form docu. So I copied the JS from the Bridge docu page and the form from the Payment Form docu page. But no token is created. When I try to debug the JS and add console.info(error.apierror); into the paymillResponseHandler(...) function, I get the error code: field_invalid_amount. According to the support page There are three possible reasons for this error message: no amount value was provided numbers were rounded wrong delimiter symbol But the amuont is provided and I've already tried different delimiter symbols. What "numbers were rounded" means, is not clear. What can be the problem and how to fix this issue? Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta name="generator" content="PSPad editor, www.pspad.com"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> <title> </title> </head> <body> <!-- PayMill HEAD start --> <link rel="stylesheet" href="https://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap.no-responsive.no-icons.min.css" /> <script type="text/javascript"> var PAYMILL_PUBLIC_KEY = '51668632777bf03b57f861c5a7278a38'; </script> <script type="text/javascript" src="https://bridge.paymill.com/"></script> <!-- PayMill HEAD stop --> <!-- PayMill FORM start --> <form id="payment-form" class="span4" action="payment.php" method="POST"> <p class="payment-errors alert-error span3" style="display:none;"> </p> <div id="payment-form-cc"> <div class="controls controls-row"> <div class="span2"> <label class="card-number-label">Kreditkarte </label> <input class="card-number span2" type="text" size="20" value="4111111111111111"/> </div> <div class="span1"> <label class="card-cvc-label">CVC </label> <input class="card-cvc span1" type="text" size="4" value="111"/> </div> </div> <div class="controls controls-row"> <div class="span3 card-icon"> </div> </div> <div class="controls controls-row"> <div class="span3"> <label class="card-holdername-label">Karteninhaber </label> <input class="card-holdername span3" type="text" size="20" value="lala"/> </div> </div> <div class="controls controls-row"> <div class="span3"> <label class="card-expiry-label">Gültigkeitsdatum (MM/YYYY) </label> <input class="card-expiry-month span1" type="text" size="2" value="12"/> <span style="float:left;"> / </span> <input class="card-expiry-year span1" type="text" size="4" value="2015"/> </div> </div> </div> <div class="controls controls-row"> <div class="span2"> <label class="amount-label">Betrag </label> <input class="amount span2" type="text" size="5" value="9,99" name="amount"/> </div> <div class="span1"> <label class="currency-label">Währung </label> <input class="currency span1" type="text" size="3" value="EUR" name="currency"/> </div> </div> <div class="controls controls-row"> <div class="span4"> <button class="submit-button btn btn-primary" type="submit" >Pay!</button> </div> </div> </form> <!-- PayMill FORM stop --> <!-- PayMill FOOT start --> <script type="text/javascript"> function paymillResponseHandler(error, result) { if (error) { console.info(error.apierror); // Displays the error above the form $(".payment-errors").text(error.apierror); } else { console.info('OK'); var form = $("#payment-form"); // Output token var token = result.token; // Insert token into form in order to submit to server form.append( "<input type='hidden' name='paymillToken' value='"+token+"'/>" ); // Submit form form.get(0).submit(); } } </script> <script type="text/javascript"> paymill.createToken({ number: $('.card-number').val(), // required exp_month: $('.card-expiry-month').val(), // required exp_year: $('.card-expiry-year').val(), // required cvc: $('.card-cvc').val(), // required amount_int: $('.card-amount-int').val(), // required, e.g. "4900" for 49.00 EUR currency: $('.currency').val(), // required cardholder: $('.card-holdername').val() // optional }, paymillResponseHandler); </script> <!-- PayMill FOOT stop --> </body> </html>

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  • Making a moveable control in WPF

    - by Dave Colwell
    Hi guys, I have a panel, within that panel are several rectangular controls (the number of controls vaires) I want the user to be able to move the controls around within the panel so that they can arrange the controls in the way that suits them best. does anyone have any resources i could read or simple tips which would get me headed down the right road?

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  • Change document outline dynamically

    - by alex
    I have a code void SomeButton_Click(object sender, EventArgs e) { if (this.Controls.Contains(Panel2)) { this.Controls.Remove(Panel2); } else { this.Controls.Add(Panel2); } } My problem is: the code changes document outline order of controls on my form. How can I restore previous document outline ? What properties, methods should I use ? Or is it impossible ?

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  • What's the best way to handle the same shortcut in WPF and WinForms controls?

    - by Anthony Brien
    I have a WPF application with the following KeyBinding on its main window: <KeyBinding Command="Commands:EditCommands.Undo" Gesture="CTRL+Z" /> <KeyBinding Command="Commands:EditCommands.Redo" Gesture="CTRL+Y" /> This makes the command respond to the shortcut fine. However, in all the places where I have embedded WinForms text boxes or rich text boxes, I've lost the ability to use those shortcuts. If I remove the above bindings, the WinForms shortcuts work fine. How can I support these shortcuts in both WinForms and WPF? I'd prefer a generic method since this problem is likely to affect many other commands with the same keybindings.

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  • Would you use IdeaBlade with DevExpress controls for an N-Tier system?

    - by ERaubenheimer
    I’ve worked on numerous projects where we’ve developed our own frameworks and platforms from scratch and it was never really successful and I’m re-evaluating to rather use a commercial product to assist us with our product development. If you get a chance to develop an N-Tier system with a SOA layer from scratch would you recommend IdeaBlade with DevExpress? If not what other combinations would you recommend? Requirements: - SOA Layer - Business components - DAL with database independency as optional - Developer support - Easy upgradable - .NET - No Royalties

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  • Is it possible to compile Silverlight controls project with Nant?

    - by Vish
    Hi all, I am attempting to compile my Silverlight control project with Nant without luck. Since my project contains XAML files, I am not sure if Nant is capable of generating the .g.cs files from the XAML file to be compiled into the project. I have come across posts where people suggest using the MsBuild task. Is there a way to avoid using the MsBuild task and compile the project using just Nant? I am not against using the MsBuild task. But would prefer to not use it if possible. Thank You, Vish

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  • How do I prevent Visual Studio from renaming my controls?

    - by Zack Peterson
    If I paste something like <asp:DropDownList ID="DropDownListExpirationDate" runat="server" /> onto an ASPX file that already has a DropDownListExpirationDate control, it will rename the newly-pasted control as DropDownList1. <asp:DropDownList ID="DropDownList1" runat="server" /> I'd rather it didn't. I'd rather is just paste exactly what I copied. Is there a way to disable this feature?

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  • Is it possible to store controls(Panel) as object, serialize it and store it as a file?

    - by ikky
    The topic says it all. Using Compact Framework C# I'm tiling (order/sequence is important) some images that i download from an url, into a Panel(each image is a PictureBox). This can be a huge process, and may take some time. Therefor i only want the user to download the images and tile them once. So the next time the user uses the Tile Application, the Panel that was created the first time is already stored in a file and is loaded from that file. So what i want is a method to store a Panel as a file. Is this possible, or do you think i should do it another way? I've tried something like this: BinaryWriter panelStorage = new BinaryWriter(new FileStream("imagePanel.panel", FileMode.OpenOrCreate, FileAccess.Write, FileShare.None)); Byte[] bImageObject = new Byte[20000]; bImageObject = (byte[])(object)this.imagePanel; panelStorage .Write(bMapObject); panelStorage .Close(); But the casting was not very legal :P "InvalidCastException" Can anyone help me with this problem? Thank you in advance!

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  • Can a program that controls IE detect if a HTTP 30x code is encountered?

    - by hillu
    I am trying to control an InternetExplorer.Application via the COM interface, using Perl, Win32::OLE, and information from MSDN. My goal is to get as good an idea as possible about what IE is doing. (Related to this question.) IE uses events to notify my program when it has finished various stages of processing a certain URL (NavigateComplete2, DownloadComplete DocumentComplete). It can also tell my program about various errors it encounters (NavigateError2). I consider that part of my problem solved well enough. I would also like to be able to reliably detect if IE is redirected by the server. Primarily, I'm concerned about HTTP 30x status codes. Is there a way to do this, either with COM automation or via another route?

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  • What are the specific names for these OLE controls?

    - by Kris
    I have been working on making a block of code that would enable me to input values into a worksheet, as well as an MSgraph object. I have succeeded in this, but this has just presented me with a new set of problems: What are the control names for changing the visible size as well as the focus of a worksheet? What are the control names for changing/making background colours and borders? How do I create and define new worksheets and MSGraph objects inside the document? My example code so far: Option Explicit Dim objWord 'Word application object Dim objIShape 'Inline shapes object Dim objOLE 'OLE object Set objWord=CreateObject("Word.Application") objWord.Application.Documents.Open("C:\birdy.doc") objWord.Visible=True Set objIShape = objWord.ActiveDocument.InlineShapes Function count_filled_spaces(intOLENo, strRange) 'Activates the the inline shape by number(intOLENo) and defines it as the OLE object objIShape(intOLENo).OLEFormat.Activate Set objOLE = objIShape(intOLENo).OLEFormat.Object 'Detects the ClassType of the inline shape and uses a class specific counter to count which datafields have data Dim strClass, i, p, intSheetno intSheetno = 1 strClass = objIShape(intOLENo).OLEFormat.ClassType i = 0 If Left(strClass, 8) = "MSGraph." then For Each p In objOLE.Application.DataSheet.Range(strRange) If p <> "" Then i = i+1 End If Next ElseIf Left(strClass, 6) = "Excel." then For Each p In objOLE.Worksheets(intSheetno).Range(strRange) If p <> "" Then i = i+1 End If Next objOLE.Worksheets(intSheetno).Range("B" & i+1) = objOLE.Worksheets(intSheetno).Range("B" & i) End if count_filled_spaces = i End Function Dim strRange strRange = InputBox("Lol", "do eeet", "B1:B10") wscript.echo count_filled_spaces(2, strRange) 'objWord.Application.Documents.Save 'objWord.Application.Documents.Close 'objWord.Application.Quit WScript.Quit(0)

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  • What ASP.NET MVC Route controls the appearance of hashes in URIs?

    - by rasx
    I have integrated a Silverlight Navigation Application in an ASP.NET MVC web. However when Silverlight calls for its default page, say, IndexPage ASP.NET MVC displays the route as: http://localhost/#/IndexPage I have tried to get ASP.NET MVC to respond to this route: http://localhost/#IndexPage but I am unable to find a configuration that works with this. Does ASP.NET MVC routes respond to hashes in general?

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