Asp. NET Technology FAQ and code

Asp.net| Solutions | questions How do I achieve the effect of a textbox display as an underscore?
Workaround:
You can use CSS style sheets to control:
< style type= "Text/css" >
. myline {border-right: #000000 0px solid; Border-top: #000000 0px solid; Border-left: #000000 0px solid; Border-bottom: #000000 1px solid}
</style>
< Asp:textbox id= "TextBox1" runat= "Server" cssclass= "Myline" ></asp:textbox>
　　
　　 How to use ImageButton to move the mouse and remove the effect of changing the picture
Workaround:
< Asp:imagebutton id= "ImageButton1" runat= "Server" imageurl= "devdays2004.jpg" ></asp:imagebutton>
To add in the Page_Load event:
IMAGEBUTTON1.ATTRIBUTES.ADD ("onmouseover", "this.src= ' 02.jpg");//mouse Move up to replace the new picture
IMAGEBUTTON1.ATTRIBUTES.ADD ("onmouseout", "this.src= ' 01.jpg");//mouse move back to original picture
　　
　　 potentially dangerous Request.Form value detected from client (freetextbox1= "< P align=right>aa ...")
Error message:
Chinese information:
A potentially dangerous request.form value was detected from the client (freetextbox1= "< P align=right>aa ...").
English information:
A potentially dangerous Request.Form value is detected from the client (freetextbox1= "< P align=right>aa ...")
　　
Workaround:
This is a new feature in the. NET Framework 1.1 that protects against malicious script attacks.
There are two ways to fix this:
Method 1. Add in the. aspx page:
<%@ Page validaterequest= "false"%>
Method 2. To modify the Web.config file:
< configuration>
< SYSTEM. Web>
< PAGES validaterequest= "false"/>
</system. Web>
</configuration>