linkbutton posts back when disabled

[rotsey]

Hi,

I have linkbutton that I disable by setting the disabled property.

FOr some reason when I click the button when grayed it still posts back.

Is this correct behaviour?

rotsey

 

[dace]

I imagine it's not the way it's supposed to work, and I can't duplicate it. Can you give more details?

 

[rotsey]

well I declare like this

<td width="70"><asp:linkbutton id="lnkUpdate" onclick="lnkUpdate_CLick" Font-Bold="True" Font-Underline="False" Font-Size="9pt" Font-Name="verdana" ForeColor="white" Runat="server" text="Update"></asp:linkbutton></td>

I am using javascript to validate on the click of this button and I want to set the disabled property in js and also server side so I initialise as below

CType(pg.FindControl("lnkUpdate"), LinkButton).Attributes("disabled") = "disabled"


And in client side js script I do this at another point

...
lnk = document.getElementById('lnkUpdate');
lnk.disabled=false;
...

So when it is disabled and I click on it it postsback.

Does this make sense?

rotsey

 

[henslecd]

Couldn't you set lnkUpdate.AutoPostBack = False when you set the button to be disabled?

 

[rotsey]

yeah but how would I set it back to postback in javascript when another button is clicked that uses javascript.

 

[henslecd]

I would call an asp.net sub instead of the javascript, use registerclientscriptblock for the javascript and set the link button's autopostback = false.

 

[rotsey]

so are you saying this is normal behaviour?

 

[ca8msm]

Does it make any difference if you set the Enabled property of the link button istelf rather than using FindControl and setting it's disabled attribute? e.g.

lnkUpdate.Enabled = False

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[rotsey]

yes it does. It works.

If I look at the source it seems that the href property is not set when do that ie

lnkUpdate.enabled = False

So when I try to set the disabled property in js I am not removing the href.

Maybe I should, you think??

 

[ca8msm]

If it works then yes although you will have to create a way of adding it back in though.

If you are simply enabling/disabling a linkbutton though maybe you should consider only doing it server side and having it postback to set the Enabled property. Posting back isn't a bad thing if it is only setting a property and will be quite quick.

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[rotsey]

ok I will try it, thanks