| Author: chandramohan 05 Aug 2008 | Member Level: Gold | Rating:  Points: 6 |
<script language="javascript">
function showHide()
{
alert(document.getElementById("box2").style.visibility)
if( document.getElementById("box2").style.visibility == "hidden" )
{
document.getElementById("box2").style.visibility="visible";
}
else
{
document.getElementById("box2").style.visibility="hidden";
}
}
</script>
string str;
str="<script language='javascript'> function showHide() { alert(document.getElementById('box2').style.visibility);";
str+="if( document.getElementById('box2').style.visibility == 'hidden' ) {document.getElementById('box2').style.visibility='visible'; }";
str+= "else { document.getElementById('box2').style.visibility='hidden'; } } </script>";
Page.RegisterStartupScript("myScript1234",str);
|
| Author: chandramohan 05 Aug 2008 | Member Level: Gold | Rating: Points: 6 |
Calling & writing JavaScript function from server side code behind
private void Page_Load(object sender, System.EventArgs e)
{
string jScriptValidator;
jScriptValidator="<script> function ReqFieldValidator()" +
" { if (document.forms[0].txtField.value == '') \n";
jScriptValidator+="{ alert('TextBox cannot be empty') \n ";
jScriptValidator+="return false; \n";
jScriptValidator+="} \n";
jScriptValidator+=" return true \n";
jScriptValidator+=" } </script>";
Page.RegisterStartupScript("regJSval",jScriptValidator);
btnSubmit.Attributes.Add("onclick","return ReqFieldValidator()");
}
Writing JavaScript function in server side code behind and calling from HTML
//Server side
private void Page_Load(object sender, System.EventArgs e)
{
string jScript;
jScript="<script>function JavScriptFn(){alert" +
" ('Client Function in javascript is call')}</script>";
}
//HTML side
< A onclick="JavScriptFn()" >
< asp:Label id="Label1" runat="server" Width="281px"
ForeColor="#8080FF">Click to call Javascript function.
</asp:Label> >/A >
Writing JavaScript in HTML and calling it from code-behind
<Head >
<script>
function ReqField1Validator()
{
if (document.forms[0].txtField1.value == '')
{
alert('TextBox cannot be empty')
return false
}
return true
}
</script>
</Head >
private void Page_Load(object sender, System.EventArgs e)
{
btnOK.Attributes.Add("onclick","return ReqField1Validator()");
}
RegisterClientScriptBlock
Suppose we want JavaScript code to be executed but not a function. In that case we make use of RegisterClientScriptBlock.RegisterClientScriptBlock which helps to make server side code as well as client side code inline to each other.
private void btnClientBlock_Click(object sender, System.EventArgs e)
{
string jScript;
jScript="<script>alert ('Javascript block of code executed')</script>";
Page.RegisterClientScriptBlock("keyClientBlock",jScript);
lblSequencial.Text="Remaining part of the code executed";
}
|
| Author: sujit kumar biswal 05 Aug 2008 | Member Level: Gold | Rating: Points: 3 |
Response.Write("<script language=""javascript"">alert('Invalid Data');window.history.back();</script>")
another way is
Button1.Attributes.Add("onclick","return function name");
|
| Author: ANIL PANDEY 05 Aug 2008 | Member Level: Diamond | Rating: Points: 2 |
Hello
u can Bind the attribute for the Function
Button1.Attributes.Add("onclick","return CheckNumeric();");
Thanks
Anil
|
| Author: Deepa 05 Aug 2008 | Member Level: Diamond | Rating: Points: 2 |
string jScript;
jScript="<script>alert ('Javascript block of code executed')</script>";
Page.RegisterClientScriptBlock("keyClientBlock",jScript);
|
| Author: Ashok 05 Aug 2008 | Member Level: Gold | Rating: Points: 4 |
Hi,
U can call a javascript function from the code behind page as follows...
//Javascript Function
<script type="text/javascript">
function display()
{
alert("hi everybody");
}
</script>
// Code Behind Page Coding
protected void Page_Load(object sender, EventArgs e)
{
Button2.Attributes["onclick"]= "javascript:display();";
}
|
| Author: UltimateRengan 26 Aug 2008 | Member Level: Diamond | Rating: Points: 5 |
hi,
in code behind u can call the javascript function.
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Button1.Attributes.Add("onclick", "GetTextBoxValues()")
End Sub
End Class
function GetTextBoxValues()
{
var ddl=document.getElementById("dropdown").value;
if (ddl=="--Select--")
{
alert("Select ");
}
else
{
alert(ddl);
}
}
i hope this may help u
|
| Author: Sridhar R 26 Aug 2008 | Member Level: Diamond | Rating: Points: 5 |
Call This in code behind..
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Button1.Attributes.Add("onclick", "GetValues()")
End Sub
End Class
function GetValues()
{
var dropdown = document.getElementById("dropdownlist").value;
if (dropdown =="--xxx--")
{
alert("xxx");
}
else
{
alert(dropdown);
}
}
|