Compare A Value From Database With The Textbox Value?

Dec 19, 2010

I am using sql server 2005 and visual stdio 2008. i have a textbox in my page as txtEmailId. i want to compare this value in database with email_id column[it is a primary key] to avoid inconsistence in database on a button click with out using custom validator

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[Code] .....

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[Code]....

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[Code]....

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[Code]....

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