UserControl run Javascript

[TCORDON]

How can I make a UserControl run some javascript when it loads? this is so
the control sets focus to a textbox it contains.

TIA!

 

[Ken Dopierala Jr.]

Hi,

This will do it, just add it to the load event of your User Control:

If (Page.IsClientScriptBlockRegistered("Focus") = False) Then
MyBase.Page.RegisterStartupScript("Focus", "<script
language='javascript'>document.getElementById('" + TextBox1.ClientID +
"').focus();</script>")
End If

Be sure to use control.ClientID and not just hard code the control id
because ASP.Net will change the control id inside a User Control to somthing
like "_ctl0_controlid". Good luck! Ken.

 

[TCORDON]

I added de code you gave me, but I dont know if I am doing something wrong,
the focus is not being set. This is how my conde looks now:

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

'Put user code to initialize the page here

If (Page.IsClientScriptBlockRegistered("Focus") = False) Then

MyBase.Page.RegisterStartupScript("Focus",
"<scriptlanguage='javascript'>document.getElementById('" + txtLinea.ClientID
+ "').focus();</script>")

End If

End Sub

 

[Ken Dopierala Jr.]

Hi,

There needs to be a space here between "script" and "language" :

"<scriptlanguage='javascript'>document.getElementById('" +

txtLinea.ClientID

If it still doesn't work then do a view source on your page and post the
outputted HTML. It'll be just above the clsoing </form> tag. Ken.