asp.net control Development (ii)-Simple properties

The controls we develop generally need to interact with the people programmers who use the controls, where there are two ways to interact: one is a property and the other is an event. Properties can be simple types such as int, string, and other types that are not too complex, and there are more complex types such as: collections.

One, property implementation interaction

We still use the example above to add a property picshow example:

     Public classPicshow:control
{
Private string_imgurl;
//Property
         Public Virtual stringImgurl
{
Get
{
return  This. _imgurl;
}
Set
{
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