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Tip Bank > .NET

.NET - Page 3

ASP.NET
C#
VB.NET
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Comparing Constant Strings with String Variables
by Ritesh Patel
Avoid NullPointerExceptions by comparing string constants with string variables—not the other way around.
Send Email Over SMTP Aschronously
by Srinath MS
To keep your UI responsive, you can send email asynchronously.
Using the WebClient Class to Download Data to a File
by Srinath MS
It's easy to save data to a local or network file using the WebClient class.
Determining Whether a Site Is Running or a URL Is Valid
by Srinath MS
The HttpWebRequest class makes these tasks simple.
Get the Name of the Executing ASP.NET Page
by Deepak Choudhari
Use this tip's code to find the name of the executing page.
Quickly Navigate to a CSS Class Definition in Visual Studio
by Deepak Choudhari
Pressing F12 in Visual Studio lets you jump to a CSS class definition just like you can jump to a method definition.
Determining Merge Errors in a Typed DataSet
by Srinath MS
Discover the underlying cause of Merge Constraint errors when merging DataSets.
Launching an Asynchronous Operation Using BackgroundWorker
by Jayadev D
The .NET BackgroundWorker class makes it a snap to launch asynchronous operations on a separate thread.
Binding a Hashtable to a DropDownList Web Server Control
by Deepak Choudhari
Set the DataSource, DataTextField, and DataValueField properties correctly, and you're done.
Adding an Installer Class to a Windows Service
by Wan Omar
Follow these simple steps to add an installer class to your Windows service.
Edit Project Files Directly in Visual Studio
by Srinath MS
You used to have to edit projects files (.csproj) in Notepad to change file locations or other incorrect attributes. Now you can do it inside the Visual Studio IDE.
An OCX-less Progress Bar
by Brian Abernathy
Here's a simple way to add a functional progress bar without including the Common Controls library.
Make Minor Code Changes to .ASPX Pages Without Rebuilding
by Jaya Nehru
Use this workaround to take advantage of the OnPreRender event, and avoid rebuilding your entire project when you need to make only minor changes to your ASPX pages.
Prevent Users from Launching Multiple Instances of Your Application
by Greggory Payne
Here's how you can make sure that only one instance of your application is running on any given machine.
How to Access JavaScript Variables on Postback in ASP.NET
by Deepak Choudhari
Here's how you can pass values from client-side JavaScript to your ASP.NET server.
Remove DataLinks in an Excel Workbook Programmatically
by Srinath MS
This is useful when you have an object such as a Chart in a workbook that depends on data from another workbook.
Method to Release COM Object References
by Srinath MS
Use this method to release references to COM objects immediately.
Converting Between List and String Types
by Srinath MS
You can convert .NET Lists to delimited strings—and vice-versa.
Evaluating an Object's PropertyPath
by Rahul Singla
This workaround provides a way to evaluate the PropertyPath value of an object, even if it's not bound to a data consumer.
Understanding Java's Integer Pool Can Avoid Problems
by Shreyas Pai
When apparently-equal integer values fail an equality test, remember the integer pool.
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