as
The as operator is used to perform certain types of conversions between compatible reference types . The as operator is like a cast operation. However, if the conversion is not possible,...
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Tuesday, June 21, 2011
sealed keyword c sharp
sealed
The sealed modifier can be applied to classes, instance
methods and properties. A sealed class cannot be inherited. A sealed
method overrides a method in a base class, but itself...
out keyword in c sharp
out
The out and the ref
parameters are used to return values in the same variables, that you
pass an an argument of a method. These both parameters are very useful
when your method needs...
ref keyword in c sharp
ref C#
The ref keyword causes arguments
to be passed by reference. The effect is that any changes to the
parameter in the method will be reflected in that variable when control
passes back to...
const keyword in c sharp
const C#
The const keyword is used to modify a declaration of
a field or local variable. It specifies that the value of the field or
the local variable is constant, which means it cannot...
readonly keyword in c sharp
readonly
The readonly keyword is a modifier
that you can use on fields. When a field declaration includes a readonly
modifier, assignments to the fields introduced by the declaration can only
occur...
what is static keyword in c#
static (C# Reference)
The static modifier can be used
with classes, fields, methods, properties, operators, events, and
constructors, but it cannot be used with indexers, destructors, or types
...
abstract keyword in c sharp
abstract
The abstract modifier is used in classes, methods and properties.
Abstract modifier is used when you want the class to be a base class for other classes.
Key points concerning abstract...
Thursday, June 16, 2011
how to check for NULL in DataTable
how to check datatable is empty
In think, you are using dtUserSettingvalues before
initialization and dtUserSettingvalues does not
have any reference to DataTabe object so that is...
Tuesday, June 14, 2011
How to Set the Default Value of a DropDownList in an ASP.NET
DropDownList Control Examples:
You can see the live samples and examples of DropDownList Control from the following links:
Setting DropDownList Default Value
DropDownList Control SelectedValue...
Check maxlength of multiline textbox in javascript
how to set maxlength for multiline textbox in asp.net
The MaxLength property of textbox control works fine if Multiline mode is not set, but if TextMode='Multiline' is set
in aspx page then this...
Thursday, June 2, 2011
Setting the default Button for a TextBox in ASP.NET
Setting
the default Button for a TextBox in ASP.NET
Hitting
the enter key in a TextBox can sometimes have undesired effects
like the wrong submit Button being “clicked“. The method...
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