Re: Reflection - ASP.NET Discussion Boards

Re: Grid Delete is not working(DeleteCommandType="StoredProcedure") plz Help?

alaminfad13-Nov-09 21:09

13-Nov-09 21:09

thnx for replyin ,

Actaully i did'nt write that code it was auto generated by the grid when i configured the datasource

Smile | :)

Is it possible to get propertyname by its attributename

mmdullah13-Nov-09 17:10

mmdullah

13-Nov-09 17:10

Hi all,

consider the following property

private string _name;
[DBField("Emp_Name")]
public string Name
{
get{returen _name;}
set{_name=value;}
}

I want to populate the Name property like this:

expectedProperty=fn_2_getProperty("Emp_Name");

propertyInfo.SetValue(expectedProperty,reader.field["Emp_Name"]);

In statement: I have a property "Name" decorated with DBfield attribute. the value of DBField is "Emp_Name". Now I want to populate Name property with the help of "Emp_Name".

how can I do it.
thanks in advance

communication between two web application in asp.net

noo.dyab13-Nov-09 9:39

noo.dyab

13-Nov-09 9:39

hi there, I want to create two web applications that communicate which each other, like a chat room, or one web application will send a message or variable or data, and the other web application will receive it. Is that possible? I want to try Session variable but I think it cannot detect by another application that will receive it. Any idea with here guys? Thanks in advance! Confused | :confused:

Re: communication between two web application in asp.net

Gamzun13-Nov-09 9:43

Gamzun

13-Nov-09 9:43

Use web service.

Please don't forget to mark 'Good Answer', if you find it really a good one!

Kashif

Re: communication between two web application in asp.net

Abhishek Sur13-Nov-09 11:08

Abhishek Sur

13-Nov-09 11:08

There must be a unified channel. Place each of those data into database and access data for both the solution to the same database. Thus giving a way to communicate.

In case of chat rooms, each of users connect to server to a specified id(chat room id) and whenever an update to the dataset takes place, updates are sent to each of them.

You might ping the server using AJAX call and see if any update is available to that id and update UI accordingly. Wink | ;)

Abhishek Sur
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Reflection

Monin D.13-Nov-09 9:32

Monin D.

13-Nov-09 9:32

I have a following structure

App_Code
   MyClass.cs [Company.MyNameSpace.MyClass]
Bin
   MyLib.dll [Company.MyLibNameSpace.LibraryClass]

From Company.MyLibNameSpace.LibraryClass I need to create an instance of Company.MyNameSpace.MyClass, but I don't know Class name until execution (it comes from XML configuration), so I use Reflection for it:

Type type = Type.GetType("Company.MyNameSpace.MyClass")

The problem is, that when I load a Type from DLL, it doesn't work (type == null), when I do the same from another .cs file in App_Code folder, everything works fine. Is there any work-around to this problem?

Re: Reflection

Gamzun13-Nov-09 9:37

Gamzun

13-Nov-09 9:37

Are you sure you're loading it correctly?

Please don't forget to mark 'Good Answer', if you find it really a good one!

Kashif

Re: Reflection

Abhishek Sur13-Nov-09 11:02

Abhishek Sur

13-Nov-09 11:02

As you dont have reference to Company.MyNameSpace.MyClass, you need to manually read the assembly using Reflection and then using Activator.CreateInstance you create the instance of the class.

For instance :
Assembly assem = Assembly.Load("\folder\MyLib.dll");
object thisObj = assem.CreateInstance("Company.MyNameSpace.MyClass");

For further reading use
http://www.c-sharpcorner.com/UploadFile/samhaidar/LateBindingWithReflection09122005053810AM/LateBindingWithReflection.aspx[^] Rose | [Rose]

Abhishek Sur
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ASP.NET web project -> native DLL -> write failure to hdd

Chesnokov Yuriy13-Nov-09 9:16

Chesnokov Yuriy

13-Nov-09 9:16

I've got ASP.NET web application which uses native DLL in C++ wrapped in C# using PInvoke.
Native DLL needs read/write access to specific folder in site location on hdd.
How to enable it?

e.g. in ASP.NET to enable C# write access to specific folder it needs to allow user to have write access to that folder from folders properties.
with native dll that does not work.

Чесноков

Re: ASP.NET web project -> native DLL -> write failure to hdd

Gamzun13-Nov-09 9:53

Gamzun

13-Nov-09 9:53

I guess it's related to CAS!

Please don't forget to mark 'Good Answer', if you find it really a good one!

Kashif

Re: ASP.NET web project -> native DLL -> write failure to hdd

Chesnokov Yuriy13-Nov-09 18:56

Chesnokov Yuriy

13-Nov-09 18:56

Thanks I will click if it is Smile | :)

If I run site from VS, native dll has r/w access and works. It should be some security then

Чесноков

How to register a click event when clicking on a node of a treeview that is already selected

Man Pang13-Nov-09 5:22

Man Pang

13-Nov-09 5:22

When a node in a treeview is clicked, a SelectedNodeChanged event is fired if and only if the node that is clicked is not the same node as the previously selected one. However, if I click on a node that is already selected this event is not fired. Does anybody know how I can find out the node that I had clicked on in this instance.

I can use javascript to trap the onClick event but I still don't know how I can find out which node I clicked, in particular, the ValuePath property of the node.

Thanks, in anticipation.

M Pang

Re: How to register a click event when clicking on a node of a treeview that is already selected

Gamzun13-Nov-09 9:40

Gamzun

13-Nov-09 9:40

Converting the node into hyperlink would that work ?

Please don't forget to mark 'Good Answer', if you find it really a good one!

Kashif

Access specifier for method

sris 42613-Nov-09 2:37

sris 426

13-Nov-09 2:37

Deal all,

I have a method in my aspx.cs file say methodone,which will be called from one of the event or method from the same aspx.cs file...

So what access specifier i can give for that method.I am thinking private is enough for my requirement. AM i correct / wrong? Please provide your views...

Thanks,
Srinivas Mateti

Re: Access specifier for method

Abhishek Sur13-Nov-09 4:10

Abhishek Sur

13-Nov-09 4:10

If you want to access the method from your html page, you need to make it at least Protected.

I mean if you write
<asp:textbox OnClick="txt_Click" runat="server" />
the txt_click should be made at least protected. Privates cant be used in events.

If you are just calling the method from the class itself, you can use Private. Rose | [Rose]

Abhishek Sur
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Re: Access specifier for method

Gamzun13-Nov-09 10:42

Gamzun

13-Nov-09 10:42

Yes, you're correct.

Please don't forget to mark 'Good Answer', if you find it really a good one!

Kashif

How to get updated text from EditItemTemplate in row updating event?

Chesnokov Yuriy13-Nov-09 2:17

Chesnokov Yuriy

13-Nov-09 2:17

I've got in EditItemTemplate text box bound to specific field:

<asp:TextBox ID="textName" runat="server" Text="<%# Bind('Name') %>"></asp:TextBox>

How to get its corrected value in RowUpdating event?
In GridViewUpdateEventArgs NewValues, OldValues and Keys are 0 element arrays???

Чесноков

Re: How to get updated text from EditItemTemplate in row updating event?

Abhishek Sur13-Nov-09 4:08

Abhishek Sur

13-Nov-09 4:08

Can you post the entire Gridview designer?

Did you mentioned DataKeyNames ...

Did you followed this :
http://msdn.microsoft.com/en-us/library/ms972948.aspx[^]

Abhishek Sur
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Re: How to get updated text from EditItemTemplate in row updating event?

Not Active13-Nov-09 6:31

Not Active

13-Nov-09 6:31

What? Did the OP change the post after you replied? I don't see any connection here.

I know the language. I've read a book. - _Madmatt

Re: How to get updated text from EditItemTemplate in row updating event?

Abhishek Sur13-Nov-09 9:21

Abhishek Sur

13-Nov-09 9:21

Yes you are right.. I just modified the answer. Smile | :)

Abhishek Sur
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Re: How to get updated text from EditItemTemplate in row updating event?

Not Active13-Nov-09 9:22

Not Active

13-Nov-09 9:22

DataGridDemo[^] See the section on Textboxes

I know the language. I've read a book. - _Madmatt

Webcontrol To string

Scalee13-Nov-09 2:01

Scalee

13-Nov-09 2:01

Hi,

I am generating an table in code behind and i would like to get it's HTML code so i can include it into an email,
But it doesn't have an innerhtml property.

Thanks

Re: Webcontrol To string

Abhishek Sur13-Nov-09 4:21

Abhishek Sur

13-Nov-09 4:21

Are you using HtmlTable class to make your table ?

If so use

StringBuilder sb = new StringBuilder();
StringWriter tw = new StringWriter(sb);
HtmlTextWriter hw = new HtmlTextWriter(tw);

yourtable.RenderControl(hw);

Now sb will hold the rendered output.
Hope this is what you wanted. Thumbs Up | :thumbsup:

Abhishek Sur
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Re: Webcontrol To string

N a v a n e e t h13-Nov-09 4:39

N a v a n e e t h

13-Nov-09 4:39

StringWriter and HtmlTextWriter are disposable. It is a good practice to wrap inside using block when working with disposable objects to avoid resource leaks.

Smile | :)

Best wishes,
Navaneeth

Re: Webcontrol To string

Abhishek Sur13-Nov-09 4:42

Abhishek Sur

13-Nov-09 4:42

Yes .. This is the responsibility of the user I guess.. Big Grin | :-D

Anyways Thanks for your input.. .

Abhishek Sur
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