I want to display a message on hovering the mouse on the ASP.NET label .
I have an ASP.NET Label. I want to display a message after hovering the mouse over the label. How can I do that? ...
.net
OpenType programming
Hi all Recently i asked two questions (1 and 2) about using OpenType features in programs written by python and .net languages, but didn't get an answer. i realized there is no way to change text rendering engines of operating systems, or force them to use OpenType. so now want to implement my own. such a program that: provides a text ...
Override default markup extensions
I have written custom markup extesions, but what if I need to override an markup extension already defined? For example, I need to serialize StaticResources references and not the values when using XamlWriter.Save(object obj) method, so I guess what I need is to write a custom markupextension inheriting from ‘StaticResourceExtension’ tha...
Gridview inside UpdatePanel refresh
I use a GridView to represent data from a table in my DB. the GridView has some template fields whose content are determined before displaying the Grid ( I use the RowDataBound event to determine content of template fields before displaying the GridView). The page displays a list of records from the table records and then, the recordin...
How to Process Lambda Expressions Passed as Argument Into Method - C# .NET 3.5
My knowledge of Lambda expressions is a bit shaky, while I can write code that uses Lambda expressions (aka LINQ), I'm trying to write my own method that takes a few arguments that are of type Lambda Expression. Background: I'm trying to write a method that returns a Tree Collection of objects of type TreeItem from literally ANY other o...
How to read a CLOB column in Oracle using OleDb ?
Hi, I have created a table on an Oracle 10g database with this structure : create table myTable ( id number(32,0) primary key, myData clob ) I can insert rows in the table without any problem, but when I try to read data from the table using OleDb connection, I get an exception. Here is the code I use : using (OleDbCon...
Exception while trying to reference LINQ namespace
While trying to use linq in a .NET 2.0 winforms project I got: Namespace or type specified in the Imports 'System.Linq' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases In both the lin...
When to show the view in winform MVP pattern
I am wondering where to call the ShowDialog() in MVP pattern, Presenter is normally defined as: public Presenter(IView view, IModel model) { this.View = view; this.View.Presenter = this; this.Model = model; } And I wanna show the View Modelly by calling ShowDialog(), then where should I call the ShowDialog()? public void ...
Does the CLR store small values in 'natural' sized locations?
In Java, a byte or short is stored in the JVM's 'natural' word length, i.e. for the most part, 32-bits. An exception would be an array of bytes, where each byte occupies a byte of memory. Does the CLR do the same thing? If it does do this, in what situations are there exceptions to this? E.g. How much memory does this occupy? struct M...
Getting a certain node using DataSet
I have the following XML <xml> <ObsCont xCampo="field1"> <xTexto>example1</xTexto> </ObsCont> <ObsCont xCampo="field2"> <xTexto>example2</xTexto> </ObsCont> <ObsCont xCampo="field3"> <xTexto>example3</xTexto> </ObsCont> <field>information</field> </xml> Is there a way to get the content of "xTexto" ...
What is the basic concept behind WaitHandle in C# .net threading ?
What is the basic concept behind WaitHandle in C# .net threading ? Whats is its use ? When to use it ? What is the use of WaitAll and WaitAny methods inside it ? ...
Lazy Loading with Ninject
I'm evaluating ninject2 but can't seem to figure out how to do lazy loading other than through the kernel. From what I can see that kind of defeats the purpose of using the [Inject] attributes. Is it possible to use the InjectAttribute but get lazy loading? I'd hate to force complete construction of an object graph every time I instant...
Load balancing a console application or service
So it's easy to load balance an ASP.NET web application. You set up a load balancer between two servers, and if the web server isn't responding on Port 80, it won't receive requests. Are there any proven techniques for doing this for a C# console application or Windows service that takes actions of its own volition? Are there any fram...
Current Line For Visual Studio Macros
How can I read text of a current line (where cursor is situated) from Macros? I'm going to use such a function: Public Sub AddTextToChangeLogFile() Dim textOnACurrentLine As ??? textOnACurrentLine = ??? If textOnACurrentLine.Text <> String.Empty Then Dim sw As New StreamWriter("C:\###\Changes.txt", True) s...
.NET : System.Threading.ThreadStart Class
Hello, I have questions about System.Threading.ThreadStart Class : where can I find its specifications ( there is praticly nothing in the msdn : http://msdn.microsoft.com/en-us/library/system.threading.threadstart.aspx or in ROTOR : www.dotnet247.com/247reference/system/threading/threadstart/__rotor.aspx) what is its field : protected...
session problem in using WebRequest and WebResponse
i have created an application with the help of webrequest and webresponse . when i try to log in to yahoo i succeed. after that i open the next page and i get the login page again by the response. How can I fix this? ...
Changing populated DataTable column data types
Hi, I have a System.Data.DataTable which is populated by reading a CSV file which sets the datatype of each column to string. I want to append the contents of the DataTable to an existing database table - currently this is done using SqlBulkCopy with the DataTable as the source. However, the column data types of the DataTable need to ...
Silverlight ItemsSource and web service
Hello, I have a simple Silverlight app which simply sets a DataGrid's ItemsSource to the result of a web service. This all works OK, but now I am trying to make it more abstract. I would like to pass a parameter to the web service and return either a List<Customer> or a List<Product> for example depending on the parameter. But I just c...
VSTO Development - Key Improvements In VS2010 / .NET 4.0?
Hi all, I am trying to make a case to my bosses on why we should use VS2010 for an upcoming Excel Workbook VSTO application. I haven't used VSTO before but have used VBA. With 2010 just around the corner, I wanted to read about the improvements made to see if it was worth using 2010 to develop this application. So far I have read 2 maj...
Converting a GUID to System.Drawing.Imaging.ImageFormat
I store information about images in a database - also their ImageFormat (jpeg, png etc). Console.WriteLine(System.Drawing.Imaging.ImageFormat.Jpeg.Guid); Outputs: b96b3cae-0728-11d3-9d7b-0000f81ef32e I want to store this in the database as a GUID - and read from the database and get the associated ImageFormat. How do I cast the GU...