C# extension functions using MSXML?
I'm having performance/memory problems using .NET's XslTransform class so I thought I'd give the MSXML object's a whirl. The question I haven't been able to find in these groups is can I use C# extension functions with the MSXML objects? More specifically to use a C# class which has all my extension functions. I've seen examples where the stylesheet uses the <msxsl:script> element and embeds C# code, but that's not a viable solution for my situation since I'll be maintaining lots of different stylesheets which require the same extension functions. (if I make one edit to an extension function, I don't want to open up 20 other files and make the same edits) Thanks, -A
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Alfred Taylor wrote: > I'm having performance/memory problems using .NET's XslTransform class so I > thought I'd give the MSXML object's a whirl. Have you optimized your code, as recommended in "Improving XML Performance" paper? [1] > The question I haven't been able to find in these groups is can I use C# > extension functions with the MSXML objects? More specifically to use a C# > class which has all my extension functions. You cannot. MSXML only supports scripting languages like JScript or VBScript for extension functions. Well, basically COM can call .NET code via interop (read about COM Callable Wrappers in .NET), so you can register a .NET assembly on the machine and then call its methods from COM. But I doubt that's going to improve your perf problem, not to mention lots of additional problems with interop. You can try it though. > I've seen examples where the stylesheet uses the <msxsl:script> element and > embeds C# code, but that's not a viable solution for my situation since I'll > be maintaining lots of different stylesheets which require the same > extension functions. (if I make one edit to an extension function, I don't > want to open up 20 other files and make the same edits) That won't work with MSXML anyway. [1] http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag/html/scalenetchapt09.asp -- Oleg Tkachenko [XML MVP] http://blog.tkachenko.com
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Oleg
6/15/2004 4:24:04 PM
Hi Oleg, Thanks for your response. I have a couple questions below. "Oleg Tkachenko [MVP]" <oleg@NO!SPAM!PLEASEtkachenko.com> wrote in message news:<exq2MyuUEHA.2484@TK2MSFTNGP11.phx.gbl>... > Alfred Taylor wrote: > > > I'm having performance/memory problems using .NET's XslTransform class so I > > thought I'd give the MSXML object's a whirl. > > Have you optimized your code, as recommended in "Improving XML > Performance" paper? [1] Nope, looks like the article came out last month so I haven't come across it yet. Looks like a good comprehensive article which I'll be sure to read. > > > The question I haven't been able to find in these groups is can I use C# > > extension functions with the MSXML objects? More specifically to use a C# > > class which has all my extension functions. > > You cannot. MSXML only supports scripting languages like JScript or > VBScript for extension functions. Slightly confused here. You say no here, but it looks like below you say it is possible through COM. Is that right? > Well, basically COM can call .NET code via interop (read about COM > Callable Wrappers in .NET), so you can register a .NET assembly on the > machine and then call its methods from COM. > But I doubt that's going to improve your perf problem, not to mention > lots of additional problems with interop. You can try it though. I'm familiar with creating CCW in .NET, just not with the syntax of MSXML. I don't suppose you could provide a quick example of how you would use a COM object for extension functions in MSXML? The other thing is, a lot of people compare the speed improvements of MSXML over the .NET implementation, however, not much is mentioned about memory. For my particular situation, I'm more concerned with memory. How do the two implementations compare? Is it neglible enough to not bother wasting my time testing MSXML? Thanks, -Alfred > > > I've seen examples where the stylesheet uses the <msxsl:script> element and > > embeds C# code, but that's not a viable solution for my situation since I'll > > be maintaining lots of different stylesheets which require the same > > extension functions. (if I make one edit to an extension function, I don't > > want to open up 20 other files and make the same edits) > > That won't work with MSXML anyway. > > [1] > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag/html/scalenetchapt09.asp > > -- > Oleg Tkachenko [XML MVP] > http://blog.tkachenko.com
Alfred Taylor wrote: >>You cannot. MSXML only supports scripting languages like JScript or >>VBScript for extension functions. > > > Slightly confused here. You say no here, but it looks like below you say it > is possible through COM. Is that right? MSXML allows JScript/VBScript extensions, where you can instantiate ActiveX objects and I presume work with COM somehow. > I'm familiar with creating CCW in .NET, just not with the syntax of MSXML. That's just VBScript or JScript. > I don't suppose you could provide a quick example of how you would use a COM > object for extension functions in MSXML? The other thing is, a lot of > people compare the speed improvements of MSXML over the .NET implementation, > however, not much is mentioned about memory. For my particular situation, > I'm more concerned with memory. How do the two implementations compare? Is > it neglible enough to not bother wasting my time testing MSXML? I'm not sure what's the best here. You better try and measure. -- Oleg Tkachenko [XML MVP] http://blog.tkachenko.com
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Oleg
6/16/2004 9:59:23 AM
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I have a calculated textbox with data source =Nz([A],0)+Nz([B],0)+Nz([C],0)+Nz([D],0). Any one or more of the textboxes B, C, D can be invisible. Everything works fine at data entry time. But when I recall the record for edit, the calculated field is #Error. I tried removing Nz([B],0)+Nz([C],0)+Nz([D],0) from the expression as B, C and D were invisible for the particular record to be editted and the error went away. Any thoughts as to how to get rid of the #Error when attempting to edit the record? Or what the problem is? Are invisible fields acceptable in calculated unbound tex...
Checkbox to allow Email Router to use user credentials is MISSING
I am using CRM 4.0 Online. We recently opted to use CRM Email Router for CRM Online for all email activities instead Outlook. I installed the CRM Email Router for CRM Online and tried configuing it. However, I could not find the checkbox [or the textboxes] to "Allow Email router to use my credentials to send and receive email on my behalf " in the Tools->Options (To set Personal Options) ->Email Tab. I only have the "Track Email" dropdown box, no check box that would allow me to enter the username and passsword. I made sure that the User's Ema...
Using system serial when creating a cash receipt using econnect 8.
I’m trying to insert a new unposted Cash receipt through “taRMCashReceiptInsert” class in econnect DLL. It requires the value of the document number of the new cash receipt . on the other hand if I insert a new cash receipt manually through Great Plains there’s a feature called automatic serial so that I don’t need to provide a document number for the new document, it’s generated automatically. For example if the last payment have the doc. Number payment00000001 the new payment will have document number payment00000002. So My question is how can I use the automatic serial feature of t...
Advancing the Date Function?
Hi, I'm just looking for a function that looks at the previous cell, into which I've typed the date (in MM-yy format), and then simply advances it to the next month (i.e I type in Jan-10, then the next cell automatically displays Feb-10, and the one after Mar-10, etc). Sorry if this seems a simple request. Thanks As long as you typed in a real date, the format won't matter to excel -- it will matter to you! But if you have June 1, 2010 in A1 (formatted to 06-10), you can use this in B1: =date(year(a1),month(a1)+1,1) and format it the way you like. Ruper...
sorting using macro
I created a series of macros that sort my spreadsheet by a different column heads as needed, and assigned them to buttons, so I can sort by those column when I want to by just clicking. It works fine, until I go and do something else in the sheet, like highlight a range of data for printing. After that, the macro fails and when I click debug, Below is one of the macros that sorts the column headed by names (names is in A1)Any ideas what I can do to fix this? Thanks in advance. Ross Sub sortnames() ' ' sortnames Macro ' Macro recorded 9/14/2005 by ross D ' ' S...
function not found in DLL
Specifically, at launching the main program, I get error window: “The procedure entry point ?function1@RTRTwrapper@@UAEXV$SomeStruct@M@@@Z could not be located in the DLL RTRT_dll.dll.” Basically, I have an interface class and a class that implements it built into a dll. In the example code below DLL_IMPORT_EXPORT is either _declspec(dllexport) at the DLL project, and _declspec(dllimport) when the DLL is used by the main project. Class DLL_IMPORT_EXPORT MyInterface { Virtual void function1(int param) = 0; Virtual void function2(int param) = 0; }; Class DLL_IMPORT_EXPORT MyClass : pu...
TSQL replacements for Access Functions
Great article, wish someone had given me this a decade ago! http://www.databasejournal.com/features/msaccess/article.php/3865076/article.htm Thanks for sharing that link. Danny does a good job of summarizing. "a a r o n _ k e m p f" <aaron_kempf@Hotmail.com> wrote in message news:81d76203-063c-4e73-9973-b3d2a893c654@v20g2000prb.googlegroups.com... > Great article, wish someone had given me this a decade ago! > > http://www.databasejournal.com/features/msaccess/article.php/3865076/article.htm > "a a r o n _ k e m p f" <aaron_kempf@Ho...
Type Casting in C and C++
Hello NG As an old style programmer I've been casting values with the C-syntax like: double dVal=3.14; float fVal = (float) dVal; but now I've been told that the C++ syntax should do a better job float fVal = static_cast <float>(dVal); for some reason. Is this true? Will the C++ compiler really generate different (better?) code or is it simply more writing I have to do? Thanx Richie >As an old style programmer I've been casting values with the C-syntax like: > >double dVal=3.14; >float fVal = (float) dVal; > >but now I've been told that the C+...
Find Function
I would like to find the second occurence of a specific alphanumeric character in a cell. For example, if cell A1 contains "BOBBY" what would be the formula for finding the second occurence of the letter "B". Thank you advance for your assistance. Greatly appreciated =FIND("#",SUBSTITUTE(A1,"B","#",2)) Replace # by another symbol if it can be part of your text -- Kind regards, Niek Otten Microsoft MVP - Excel "SJT" <SJT@discussions.microsoft.com> wrote in message news:70B9153E-4351-4983-96D5-8870C633...