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• How can i change the edit mode of a cell in my Gridex Janus Table

  - by oz radiano

  Hello, I'm trying to create a Janus gridex which every cell has different edit mode. For instance, one cell will be comboBox edit mode and the second one will be free text How can it be done? Thanks in advance, Oz.

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• Predicting advantages of database denormalization

  - by Janus Troelsen

  I was always taught to strive for the highest Normal Form of database normalization, and we were taught Bernstein's Synthesis algorithm to achieve 3NF. This is all very well and it feels nice to normalize your database, knowing that fields can be modified while retaining consistency. However, performance may suffer. That's why I am wondering whether there is any way to predict the speedup/slowdown when denormalizing. That way, you can build your list of FD's featuring 3NF and then denormalize as little as possible. I imagine that denormalizing too much would waste space and time, because e.g. giant blobs are duplicated or it because harder to maintain consistency because you have to update multiple fields using a transaction. Summary: Given a 3NF FD set, and a set of queries, how do I predict the speedup/slowdown of denormalization? Link to papers appreciated too.

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• Proceed Cautiously With SharePoint 2010, Analyst Says

  Customers may be confused by the promises Microsoft has been making with the final release of SharePoint 2010, analyst Janus Boye says.

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• PowerShell filter vs. function

  - by Marcel Janus

  I'm reading currently the Windows PowerShell 3.0 Step by Step book to get some more insights to PowerShell. On page 201 the author demonstrates that a filter is faster than the function with the same functionally. This script takes 2.6 seconds on his computer: MeasureaddOneFilter.ps1 Filter AddOne { "add one filter" $_ + 1 } and this one 4.6 seconds MeasureaddOneFunction.ps1 Function AddOne { "Add One Function" While ($input.moveNext()) { $input.current + 1 } } If I run this code is get the exact opposite of his result: .\MeasureAddOneFilter.ps1 Days : 0 Hours : 0 Minutes : 0 Seconds : 0 Milliseconds : 226 Ticks : 2266171 TotalDays : 2,62288310185185E-06 TotalHours : 6,29491944444444E-05 TotalMinutes : 0,00377695166666667 TotalSeconds : 0,2266171 TotalMilliseconds : 226,6171 .\MeasureAddOneFunction.ps1 Days : 0 Hours : 0 Minutes : 0 Seconds : 0 Milliseconds : 93 Ticks : 933649 TotalDays : 1,08061226851852E-06 TotalHours : 2,59346944444444E-05 TotalMinutes : 0,00155608166666667 TotalSeconds : 0,0933649 TotalMilliseconds : 93,3649 Can someone explain this to me?

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• Parallel installation of Office 2003 and Outlook 2010

  - by Marcel Janus

  we have a customer who is not willing to move from Office 2003 to Office 2010 but he now wants to use Office 365. As you know is Office 365 not compatible with Outlook 2003. Now he asked me if it's possible to buy and install Outlook 2010 and keep the rest as it is. I only found some guides for parallel installation of Office 2007 and Office 2010. So my question is if this solution will work. Or are there any issues known?

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• Process for migrating Dropbox to SpiderOak

  - by Marcel Janus

  I want to move my data from dropbox to SpiderOak. I have 3 computers running dropbox. But I have a poor WAN connection with very limited upload bandwidth. So I thought I do as first step install the dropbox client on my server on the internet an download there my data from dropbox. Then after this I upload/backup my data from this server with a broadband connection to SpiderOak. After the backup is completed I setup the sync between my 3 computers so that they will not have to upload the data again. Will this process will work so that I don't have to upload my data again over my WAN connection at home?

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• String quotation marks when exporting a Mathematica Grid as vector graphics

  - by Janus

  Running the following agrid = Grid[{{Style["hello", Bold]}}] ImportString[ExportString[agrid, "PNG"], "PNG"] ImportString[ExportString[agrid, "EPS"], "EPS"] spits out hello hello "hello" That is, the EPS exporter included the quotation marks in the output. Same for PDF. Without the Grid, all exporters leave out the quotation marks. What magic do I need to get rid of the quotation marks in the PDF?

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• Bug in Mathematica's Integrate with PrincipalValue->True

  - by Janus

  It seems that Mathematica's handling of principal value integrals fails on some corner cases. Consider these two expressions (which should give the same result): Integrate[UnitBox[x]/(x0 - x), {x, -Infinity, Infinity}, PrincipalValue -> True, Assumptions -> {x0 > 0}] /. x0 -> 1 // Simplify Integrate[UnitBox[x]/(x0 - x) /. x0 -> 1, {x, -Infinity, Infinity}, PrincipalValue -> True] In Mathematica 7.0.0 I get I Pi+Log[3] Log[3] Has this been fixed in later versions? Does anybody have an idea for a (more or less) general workaround?

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• WPF how to see last added text line in TexBox

  - by Janus

  I would like simmulate Console text output in my WPF app but when I add new lines in TextBox I should use scroll bar to see last added text but I want to see last added text but for firsts lines use scroll bar <TextBox TextWrapping="Wrap" AcceptsReturn="True" VerticalScrollBarVisibility="Auto" Text="{Binding Path=Data, Mode=TwoWay}" />`

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• How to report a crash bug with nothing on screen

  - by winniemiel05

  I would like to report an installation bug, but I can't launch ubuntu-bug : On my tablet (LDLC Janus, an Intel based tablet without OS installed by default), I have a problem when I install Ubuntu 11.04 or 11.10. Once the installation is finished, when I reboot, there is ABSOLUTELY nothing on screen, but Ubuntu boot correctly anyway : I choosed auto-login mode and I can hear the login sound. Even if I Ctrl+Alt+F1 or F2... there is nothing. But the livecd works fine (even touch screen even if without multi touch). I tried to install 10.10 it works, but as soon as I upgrade the same problem occure. i installed Fedora 15 and then Fedora 16 (because of other problems) and no problems with them. I would like to report this bug on launchpad but I don't know how to do to give devs logs files and other useful files which could help debug. Thanks a lot for your answer, I would really prefer using my tablet with Ubuntu (I miss U1, USC, Unity)

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• Coda-like experience for Ubuntu

  - by Dillon Gilmore

  I'm a web developer who's going to transition from using Mac OS X to Ubuntu. I've been using Coda for some time, only because it makes web development easy. I know a full fledged app isn't available for Linux, but would like to know about apps that specialize in the same tasks that Coda offers. I plan on switching to Vim for code editing, I'm extremely proficient and will install the Janus plugin and be good to go for editing code. One thing that makes editing on Coda so amazing is its extremely good at SFTP, you can drag and drop files and/or folders from your local drive to the server. Also, you can edit code directly on the server. The problem here, is that using Vim I don't know of a way to edit code on a remote server, while using my own Vim settings and plugins. To solve this, I would like to know of a good SFTP client OR a good SFTP CLI. A CLI that could synchronize your files after a file has been modified would be perfect, but not necessary. Now, one of the biggest and best features of Coda is its ability to view your databases. You get to create a database, create tables, add stuff, delete stuff and view the contents of the table (all this without writing a single SQL statement). I will admit that databases are my weak point, but is a very important part of my job. If there is a tool that specializes in databases would be perfect. I wouldn't prefer to use the command line for database stuff, but if there is a CLI for databases that I'm missing could potentially be useful. So I guess I'm asking for two things. A tool that makes databases easier to visualize and a tool that assists in pushing my local code to a server.

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• Programmatically set the DPI from a .net 2.0 WinForms application

  - by Stef

  I want to run my application on 96dpi, no matter what the dpi size from Windows is set to. It is possible ? ' Edit ' I found that using the Scale() method and resizing the font will almost do the trick. public class MyForm : Form { private static bool ScaleDetected = false; const float DPI = 80F; protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); if (!ScaleDetected) { Graphics g = e.Graphics; float factorX = DPI / g.DpiX; float factorY = DPI / g.DpiY; SizeF newSize = new SizeF(factorX, factorY); AutoScaleDimensions = newSize; AutoScaleMode = AutoScaleMode.Dpi; Scale(newSize); Font = new Font(Font.FontFamily, Font.Size * factorX); ScaleDetected = true; } } } However when using this 'trick' in a MDI application using Janus Controls, the main form is resized, but for some other forms, the scaling + changed font are not applied.

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• WinForms Control.BeginInvoke asynchronous callback

  - by Darran

  I have a number of Janus grid controls that need to be populated on an application startup. I'd like to load these grids on different threads to speed startup time and the time it takes to refresh these grids. Each grid is on a seperate tab. Ideally I'd like to use Control.BeginInvoke on each grid and on the grid load completing the tabs will become enabled. I know with Delegates you can do a Asynchronous callback when using BeginInvoke, so I could enable the tabs in the asynchronous callback, however when using Control.BeginInvoke this is not possible. Is there a way to do asynchronous callbacks using Control.BeginInvoke or possibly a better solution? So far I have: public delegate void BindDelegate(IMyGrid grid); private IAsyncResult InvokeBind(IMyGrid grid) { return ((Control)grid).BeginInvoke( new BindDelegate(DoBind), new object[] { grid } ); } private void DoBind(IMyGrid grid) { grid.Bind(); // Expensive operation } private void RefreshComplete() { IAsyncResult grid1Asynch = InvokeBind(grid1); IAsyncResult grid2Asynch = InvokeBind(grid2); IAsyncResult grid3Asynch = InvokeBind(grid2); IAsyncResult grid4Asynch = InvokeBind(grid3); IAsyncResult grid5Asynch = InvokeBind(grid4); IAsyncResult grid6Asynch = InvokeBind(grid5); } Now I could spin off a separate thread and keep checking to see if the IAsynchResults have completed and depending on which one completes I could re-enable the Tab control that the grid is contained in. Is there a better way of doing this?

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• Why would javascript click-areas not be working in IE8?

  - by Edward Tanguay

  I'm trying to find a bug in an old ASP.NET application which causes IE8 to not be able to click on the following "button" area in our application: <td width="150px" class="ctl00_CP1_UiCommandManager1i toolBarItem" valign="middle" onmouseout="onMouseOverCommand(this,1,'ctl00_CP1_UiCommandManager1',0,0);" onmouseover="onMouseOverCommand(this,0,'ctl00_CP1_UiCommandManager1',0,0);" onmousedown="onMouseDownCommand(this, 'ctl00_CP1_UiCommandManager1', 0, 0);" onmouseup="onMouseUpCommand(this, 'ctl00_CP1_UiCommandManager1', 0, 0);" id="ctl00_CP1_UiCommandManager1_0_0"> <span style="width:100%;overflow:hidden;text-overflow:ellipsis;vertical-align:middle;white-space:nowrap;"> NEW </span> </td> When we switch IE8 to IE7 compatibility mode, the problem disappears, IE7 is able to click on it. Since the above HTML is generated by a third party control (Janus, http://www.janusys.com/controls), we don't have the source code. has anyone experienced any similar problems with IE8? I've determined that it actually fires the onMouseDownCommand command also the CSS of the button area is different in IE8, it doesn't have color shading that it does in IE7. I can imagine that somewhere the HTML is not valid and IE8 being stricter is not playing along, but where? any advice on how to narrow in on this bug welcome ANSWER: Turned out to be that the application was not checking the navigator.agent for "MSIE 8.0" and was thus treating IE8 has a non-Internet-Explorer browser. Thanks Lazarus for the tip, the IE8 Javascript debugger is very nice, like a Firebug for IE, will be using it more!

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