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The CLR profiler allows you to rewrite IL at JIT time. That would be one place to put instrumentation code to track what code is getting executed.
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I have a set of objects that I want to do some processing on prior to serializing and after deserializing,using wcf for coms.
The code is included below. I understand that I should change OnDeserializing to OnDeserialized, and have, but neither get called.
If I put a break in the OnSerializing method, the debugger stops there. If I put a break in the OnDeserializing method, the debugger never stops there. It is also clear from the errors I am getting that the re-hydration has not happened.
I am following the same pattern for both the pre and post calls. The compiler is happy with them, and they look like they match the patterns in the online doc.
Any ideas? This is also posted on MSDN with no help forthcoming.
hury Plz snd code and dollars
TIA
[OnSerializing ()]
internal void OnSerializingMethod(StreamingContext context)
{
long temp = 0;
if (context.State != StreamingContextStates .Clone)
{
Dehydrate (null , ref temp);
}
}
[OnDeserializing ()]
internal void OnDeserializingMethod(StreamingContext context)
{
if (context.State != StreamingContextStates .Clone)
{
Rehydrate (0);
}
}
Silver member by constant and unflinching longevity.
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Because of WCF generate proxy for DataContract with [System.Diagnostics.DebuggerStepThroughAttribute()].
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Hi,
I have developed a smart client desktop application using SCSF.
It has an MDI and MDI child forms opens over it(It is similar to windows menu based application using MDI) .
The problem is that the MDI child forms (i.e. the views) take a few seconds to open and load.
Is there any way of minimising the time it takes.
The forms are having simple text boxes and labels and grids(which has two columns and is not populated during load)
I call a webservice at form load and have tried to comment the service call; Even then it takes the same time so I have ruled out the possibility of service delay.
Nothing else is done at the form load except the form is rendered
All MDI child forms(views) are taking the same time.
The application is stand alone not run remotely or checks for any updates on any server.
I dont have knowledge of SCSF internals, and how SCSF does all the handling of smart parts etc.
May be it might be tuned up to load the views faster or there is some way to make the CAB work faster which I am unaware of.
Could not find the forum related to SCSF so posting it here, please suggest in case you have knowledge of SCSF message board in code project.
Thanks in advance.
Sakshi
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SCSF uses reflection very heavily. Because of this reason performance is hit when trying to do what would seem the simplest of things. It is a very heavy framework and unless you really need it and are concerned about performance I would suggest an alternative.
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Dear all, upon developing data entry project I've faced a problem and I still can't figure out the solution.
Simplifying the matter, lets say that the the user enters the ID value and should get the decription in another column (DataGridViewTextbox) in the same datagridview. The description column should get updated immediately after the value of the ID column is changed.
The scenario is very close to classical master/detail form except that the detail should be displayed into the same control.
I had particullar success when bound the datagridview control to dataset relation, but the form didn't work well when inserting new rows.
Can you provide me with brief advice or a link?
Kind regards,
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Thank you very much for your reply!
I will take a look.
Anyway I will try to clarify myself by pseudo-code.
Consider DB with two tables:
table "payments" with the following structure:
"p_id" int,
"price" int,
"empl_id" int
and "employees":
"empl_id" int,
"empl_name" varchar /* this I want to get later */
It is not difficult to bind the DataGridView control to the "payments" table.
In the form I define the following columns (binding them to corresponding columns in data source):
datagridview.Columns("pay_id").DataPropertyName = "payments"."p_id"
datagridview.Columns("price").DataPropertyName = "payments"."price"
datagridview.Columns("empl_id").DataPropertyName = "payments"."empl_id"
And here is it, I want to have a column which displays the employee's name taking it from table "employees". Something like:
datagridview.Columns("empl_name").DataPropertyName = "employees"."empl_name"
This column should refresh every time the user changes the value of datagridview.Columns("empl_id") providing him with the name of the employee.
But there is no way (at least I don't know how) to define another data source for DataGridViewTextBox column. May be I need to populate manually the cell with the employee's name fetching it from dataset relation.
Previously I hadn't used .NET for data entry forms which is my primary fields so I am not very certain about its classes and their properties.
Thanks and regards,
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you can use DataGridViewComboBox column instead of DataGridViewTextBoxColumn to show employee's name.
Example:
datagridview.Columns("empl_name").DisplayMember="empl_name"
datagridview.Columns("empl_name").ValueMember ="empl_id"
datagridview.Columns("empl_name").DataSource ="employees"
datagridview.Columns("empl_name").DataPropertyName="payments"."p_id"
datagridview.Columns("empl_name").DisplayStyle=Nothing
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Hi,
how to pass a "IS NOT NULL" to an OleDbParameter?
I know how to do "IS NULL":
parameter = new OleDbParameter(myField, Convert.DBNull);
Any Help would be great...
Thank's
 :k:
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You can pass in an actual Null value for the parameter using your code, but this doesn't mean you're passing "IS NULL" or "IS NOT NULL". These aren't values, they're conditions, presumably your stored procedure or query would then use IS NULL or IS NOT NULL to check whether or not the value you passed in was or was not a Null.
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How do .net framework relates to ajax technology.
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sapna sangole wrote: How do .net framework relates to ajax technology.
They are both code.
Please clarify what you are asking - are you asking how do you implement AJAX in the .NET framework, or are you asking what AJAX is, and how it differs from the .NET framework?
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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You can use AJAX with .Net framework in 2 ways
1. Use asynchronous Javascript method call to find server function and write everything by you only by you.
2. Or Install free Microsoft AJAX Framework and take advantage of AJAX Control Toolkit.
Education is not a way to escape poverty — it is a way of fighting it.
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Hi Guys,
I've got a little wrapper class that exposes some registry properties in my code. This works and passes the unit test for writing and reading the value and comparing the result. However, when i look in the registry, there's no section for the values i am manipulating.
public static void SetGroupRegInfo(string group, string key, string value)
{
RegistryKey rkApp = Registry.LocalMachine.CreateSubKey(
REGISTRY_MICA_GROUPS + "\\" + group,
RegistryKeyPermissionCheck.ReadWriteSubTree);
try
{
rkApp.SetValue(key, value);
}
finally
{
rkApp.Close();
}
}
public static string GetGroupRegInfo(string group, string key)
{
RegistryKey rkApp = Registry.LocalMachine.OpenSubKey(
REGISTRY_MICA_GROUPS + "\\" + group,
RegistryKeyPermissionCheck.ReadSubTree,
RegistryRights.QueryValues);
if (rkApp == null)
return null;
try
{
return (string)rkApp.GetValue(key);
}
finally
{
rkApp.Close();
}
}
The base registry entries are created correctly by the application installer, but these values just don't seem to appear.
Any thoughts?
Regards
Tris
-------------------------------
Carrier Bags - 21st Century Tumbleweed.
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I find your post confusing. You say the Unit Tests pass but we have no idea what is being tested. You say "it works" but the value is not in the registry so I have no idea what "it works" means because to me if the value is not written to the registry then I would say it is NOT working.
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can't stay away for more than 8 minutes, can you? 
Luc Pattyn [Forum Guidelines] [My Articles]
The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.
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Luc Pattyn wrote: can't stay away for more than 8 minutes, can you?
Hey Luc,
See here[^]
and here[^]
So long dude. ![Beer | [beer]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/beer.gif)
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Exactly, that[^] and your above message are 8 minutes apart.
Luc Pattyn [Forum Guidelines] [My Articles]
The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.
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Luc Pattyn wrote: and your above message are 8 minutes apart.
That time is the original post, I modified it twice, see where I say "I just changed my mind". 
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I see. I never mind the "modified at..." message that gets added automatically, it uses Bujumbura local time or something similar, doesn't tell me much.
In the mean time, you're still here. Which is great.
BTW: if and when the new be-really-kind rules would really cripple you, you can always put a leaded answer in one of the soapboxes/back rooms, and just reply with a link to it. 
Luc Pattyn [Forum Guidelines] [My Articles]
The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.
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Well, "it works" would mean that the unit test does the following:
* Write a value to the registry via the wrapper
* Read a value from the registry via the wrapper
* Assert that the value read is equal to the value written
So the fact that these values don't appear in the registry confuses me too and I'm inclined to agree that it appears to be not working, hence i posted here. :P
-------------------------------
Carrier Bags - 21st Century Tumbleweed.
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Hi,
I would guess you're running on Vista or higher, which virtualizes all registry hives but current_user when running below elevated admin level, whereas your installer (and your unit tests?) probably runs as elevated admin and creates and uses the proper keys.
A regular user is not supposed to modify local_machine keys, since they extend beyond his realm.
Luc Pattyn [Forum Guidelines] [My Articles]
The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.
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Yes, I'm on vista.
What effect will this have if i shutdown and re-start? Does the registry for my local machine get burned?
Is there any way around this without admin rights?
-------------------------------
Carrier Bags - 21st Century Tumbleweed.
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