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Ok, I have inhertied a some code in which I find that the previous developer has done something I do not agree with but..I have to work with what I have got.
There is a typed dataset called QueryDataSet and there is an object called
QueryDataObject that inherits from QueryDataSet. In the development enviorment all is well mbut when I get to my executable, I get the following error:
"The constructor to deseralize an object of type WTI.Fortis.QueryDataObject was not found".
I am thinking that the previous developer was changing the constructor
protected QueryDataSet(SerializationInfo info, StreamingContext context) {
that is genereated as a result of me autogenerating the dataset to public.
Any thoughts on this matter would be greatly appreciated.
Sameer
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QueryDataObject must implement ISerializable as well as QueryDataSet (I think). You might be able to get around it by casting QueryDataObject to a QueryDataSet and Deserializing that instead.
I havn't used Serialization that much but I do remember coming across something along the previous lines.
You know you're a Land Rover owner when the best route from point A to point B is through the mud.
Ed
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Well the QueryDataset is a type dataset and that does not implement te ISeralizable interface by default and I am pretty positive that casting QueryDataObject to a QueryDataSet maynot by me much, but I am going to try to implement the Iseralizable interface on the QueryDataObject and see what happens.
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Sorry I wasn't more help 
You know you're a Land Rover owner when the best route from point A to point B is through the mud.
Ed
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hello,
I am involved in a project for writing auto-update applications in .net using Background intelligent transfer service. can somebody please help me with usefull example codes in c#
gurrumurthi
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Heard of Google?
If not follow the link and click the first result, et voila, a C# example from Microsoft none the less 
Sorry if I'm a bit sarcastic but 10 seconds to load and type something in Google will save many people a lot of time somewhere down the line.
You know you're a Land Rover owner when the best route from point A to point B is through the mud.
Ed
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thank you very much ED
i have seen it but the problem is i am a new graduate and i am also new to the field i find it quiet difficult to understand the logic behind it.
if u no please tell me.
gurru
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Sorry I don't know anything at all about BITS (and don't have time at the moment to find out) apart from a general overview of what it does. My suggestion would be to try out the tutorial in the article and see what happens there. If you run into more problems then ask some more questions.
You know you're a Land Rover owner when the best route from point A to point B is through the mud.
Ed
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hi everyone
i want to learn developing applications for mobile devices.
can anyone help me how to start?
i prefer .net platform
someone plz come up with an answer.
thanks in advance for help.
anup
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I think mobile software isn't developed with C# but rather modified C++ for Symbian systems. It does have some support to .net platform, but it's somewhat limited. If you want to develop more traditional Java applications, then you're in wrong area.
Links to different symbian stuff you'll be needing (Nokia mainly):
http://www.forum.nokia.com/main/0,,034-483,00.html (S60 SDK platform for Symbian OS, for Java)
http://www.forum.nokia.com/main/0,,034-902,00.html (Some tools for developing (I think this was 14 day test version)
http://www.forum.nokia.com/main/0,,034-4,00.html (S60 SDK platform for Symbian OS, for C++)
Please note that these require Visual Studio and it doesn't work in Visual Studio Express.
I think there's free Borland version somewhere too.
if you're brave, try: http://simonwoodside.com/dev/symbian/howto.html
In future, please post to the correct forum, thank you. 
-- modified at 8:18 Wednesday 24th May, 2006
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You think wrong.  Symbion is just ONE of the available platforms.
The .NET Compact Framework is available for Windows Smart Phones and Pocket PCs. A development environment (including emulators you can set breakpoints in etc) are included in Visual Studio Pro (and above). It implements a subset of the .NET Framework, and your basic Pocket PC application will actually run just fine on the desktop as well.
Hence nothing strange in wanting to do C# programming for Mobile Devices - we have done that for years.
-- modified at 8:50 Wednesday 24th May, 2006
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Aa.. I see. Well I haven't had much training nor interest in mobile systems so I'm somewhat uninformed. Thanks for correcting. 
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Please help me on following queries
1) I want to access a remote machine through the asp.net code..
2) I have the IP Address of that particular machine
So is it possible to do such thing?.....
Or what else could be the solution…actually the requirement is to copy folders from my local machine to that particular machine…
Using my asp. Net application
Pls help with every possible aspect………
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V.V.Thakur wrote: asp.net
ASP.NET Forum
This is possible to do but unless you have an explicit problem with some code then at least attempt the solution yourself.
You know you're a Land Rover owner when the best route from point A to point B is through the mud.
Ed
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Hi everyone.
I'm currently working on a larger system that will incorporate several tools including shell extensions.
The contextmenu works fine for when I rightclick single files. All menuitems show, and InvokeCommand is called to do the work assosiated with the menuitem clicked.
But if I select several files, the contextmenu shows, the submenuitems shows and are selectable, but
nothing happends. I got a debugger in InvokeCommand() so I know it isn't called.
Seems to me that there's some kind of pointer / reference mismatch so that explorer isn't firing my
InvokeCommand method.
If anyone has some experience in contextmenu shell extensions I'd appreciate some feed back.
I'll gladly post some code too if it helps.
-Larantz-
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Solved it.
I'll post the solution incase anyone else runs into the same problem.
My extension is made up with dynamic contextmenus that vary in size and content according to the
filetype etc. So I had identifier baseIDs like i.e: baseIDTxt 0, baseIDDoc 100, baseIDRtf 200;
These baseIDs are then used when creating/populating the menus so it's easier to locate the correct
commands when InvokeCommand is called. I'd just switch on the baseids:
case baseIDTxt + 0: //menuitem index 0
//do something to txt file
break;
case baseIDTxt + 1: //menuitem index 1
//do something else to txt file
break;
The problem for me was that if I used a baseID larger then 100 for some of my menus, and the InvokeCommand for that specific contextmenu wouldn't show.
So try and keep them below 100 and you should be fine.
I now have a dynamic contextmenu with dynamic number of sumbmenuitems that varies for 4 filecases.
I used four bases i.e: baseX = 0, baseY = 25, baseZ = 75 and baseLast = 100;
-Larantz-
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hi
iam begginer in c# can anyone help me to know how to accept double values using textbox .
tahnk you in advance
Regards
praveen
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u can try
double db = Double.Parse(textbox1.text);
rahul
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tankyou verymuch for the help it worked
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Hello,
One way is to do it like this (dNumber defined earlier, and in this case textbox is named txtBox):
double dNumber;<br />
<br />
try <br />
{<br />
dNumber = double.Parse(txtBox.Text);<br />
}<br />
catch(FormatException)<br />
{<br />
MessageBox.Show("You typed an invalid value\n\r" +<br />
"Please try again");<br />
}
This diplays an errorbox in case user puts in wrong kind of an input.
-PP
-- modified at 7:29 Wednesday 24th May, 2006
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Howdy,
I'm having some problems having information delivered between a custom user component and the main form.
In the component I have a combobox to where I want to get information from the main form. I tried using the following expression:
<br />
string[] sectionRange = ((Proha)TopLevelControl).giveSections();
ProHa is the Class name. This works, but it says "Object reference not set to an instance of an object" for 3 times whenever I try to view the component in the main form's Design view or run the program.
If the above should be instantiated somehow, how can it be done?
Big thanks to anyone who can help.
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I think, if you create your control for the first time, you must also send a reference of the main form to your component.
e.g.
public class MainForm
{
MyComponent myComp = new MyComponent(this);
}
public class MyComponent
{
private MainForm mainForm = null;
public MyComponent(MainForm mainForm)
{
this.mainForm = mainForm;
}
}
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Thanks, that worked, but now the design view has some problems since I had to modify the constructor in my component and now it doesn't seem to match with something else declared in MyComponent.Designer.cs file. I'll try separating the process from the constructor..
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Good day everyone,
Pls help if you're interested in
I'm doing a handwriting program.
I've got a static method to remove points of line. In this method there are 2 ArrayList. I'd like to remove whatever points they are matched each other. But I've got a problem:Index is out of range...
Anyone know how fix this or other way to compare 2 objects?
Thanks so much
private static void RemovePoint()
{
for (int i = 0; i < pointErase.Count; i ++)
{
for (int j = 0; j < pointArray.Count; j ++)
{
bool isMatch = Object.Equals(pointArray[i], pointErase[j]);
if (isMatch)
{
pointArray.RemoveAt(i);
pointErase.RemoveAt(j);
}
}
}
}
eric
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bool isMatch = Object.Equals(pointArray[i], pointErase[j]);
this line is the wrong way round according to your loops, it should be
bool isMatch = Object.Equals(pointArray[j], pointErase[i]);
As are your lines that actually do the RemoveAt
Current blacklist
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-- modified at 7:12 Wednesday 24th May, 2006
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