asp.net the way to register JavaScript _ practical Tips
Source: Internet
Author: User
1, IsStartupScriptRegistered: Whether the object is registered to enable script.
2, IsClientScriptBlockRegistered: Whether the object registered client script block.
3, Isclientscriptincluderegistered: Whether the object is registered client script contains.
First example:
string info = "<script>alert" (' How are you? ');</script> ";
Determine if the event is registered, written to the area:<body>----<script></body>
if (! Page.ClientScript.IsStartupScriptRegistered ("Test")
{
Dynamically register and execute JavaScript
Page.ClientScript.RegisterStartupScript (this. GetType (), "test", info);
}
A second example:
aspx file:
Name: <input id= "txtUserName" type= "text"/>
<input id= "btnsubmit" type= "button" value= "OK" onclick= "Salert (txtusername.value)"/>
CS File:
string info = "function Salert (userName) {alert (' Your name: ' + userName ')}";
To determine if test is registered
if (! Page.ClientScript.IsClientScriptBlockRegistered (this. GetType (), "test")
{
Dynamically registering JavaScript
Page.ClientScript.RegisterClientScriptBlock (this. GetType (), "test", info, true);
}
A third example:
aspx file:
Name: <input id= "txtUserName" type= "text"/>
<input id= "btnsubmit" type= "button" value= "OK" onclick= "Salert (txtusername.value)"/>
Jscript.js
function Salert (userName)
{
Alert ("Your name" + userName);
}
CS File:
To determine if test is registered
if (! Page.ClientScript.IsClientScriptIncludeRegistered (this. GetType (), "test")
{
Dynamically registering JavaScript
Page.ClientScript.RegisterClientScriptInclude ("Test", "jscript.js");
}
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