how to call javascript function from vb.net code? - Stack Overflow

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I have written VB.NET code for calling my Javascript function showDisplay().

vb code:

System.Web.UI.ScriptManager.RegisterClientScriptBlock(Page, GetType(Page), "Script", "showDisplay();", True)

javascript code:

function showDisplay(){
alert('success');}

but this is not working, can you help?

I have written VB.NET code for calling my Javascript function showDisplay().

vb.net code:

System.Web.UI.ScriptManager.RegisterClientScriptBlock(Page, GetType(Page), "Script", "showDisplay();", True)

javascript code:

function showDisplay(){
alert('success');}

but this is not working, can you help?

• javascript
• vb.net

Share Improve this question Follow edited Jan 20, 2014 at 5:50 Nalaka526 11.5k2121 gold badges8484 silver badges118118 bronze badges asked Jan 20, 2014 at 5:47 NovusNovus 10111 gold badge22 silver badges99 bronze badges 1

• possible duplicate of How to call javascript function from code-behind – The Hungry Dictator Commented Jan 20, 2014 at 5:52

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1 Answer 1

Sorted by: Reset to default 15

Perhaps you are looking for RegisterStartupScript:

ScriptManager.RegisterStartupScript(Me, Page.GetType, "Script", "showDisplay();", True)

Depending on where your showDisplay() javascript function exists in your code, using RegisterClientScriptBlock may not find it. This is because RegisterClientScriptBlock places the javascript at the top of your page, immediately after the viewstate. Using RegisterStartupScript will place the call to showDisplay() at the very bottom of your form, so it will be rendered last and your javascript function will have already been rendered and available.

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