alert box appears in white blank background

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In my web application i have written the code for alert display box if password is wrong

ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Email or Password is Incorrect.')", true);

when alert box appears it comes with white background or it disturbs background like images and text when i have clicked ok it goes back to normal i have tried the

RegisterStartupScript

too whatever i do it gives same problem please help to solve this error.
Thank you.

Posted 2-Jun-15 20:01pm

kwelpooh

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F-ES Sitecore · Answer 1 · 2015-06-02T22:28:00

That is just the functionality of the "alert" feature of whatever browser you are using and it can't be changed. If you want more control of the box you'll need to use a custom javascript modal box. jQuery has one as part of their UI library that supports a greater level of customisation.

http://jqueryui.com/dialog/[^]

Melwyn Fernandes · Answer 2 · 2015-06-03T02:30:00

Solution 2

Use the below code

C#

Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('Hi This is Melwyn Fernandes');", true);

Posted 3-Jun-15 2:30am

Melwyn Fernandes