I keep getting this error: "End of Statement Expected".

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cmd.CommandText = " update studet set name='"&TextBox1.Text "','"&textbox2.Text "','"&TextBox3.Text '",total='"&TextBox4.Text& '" where id='"&Textbox1.Text'" "

Posted 15-Feb-15 5:18am

Member 1097736

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Abhinav S · Answer 1 · 2015-02-15T05:32:00

Solution 1

You may be missing a few &'s. Try

 cmd.CommandText = " update studet set name='"&TextBox1.Text&"','"&textbox2.Text&"','"&TextBox3.Text &'",total='"&TextBox4.Text& '" where id='"&Textbox1.Text'" "

Posted 15-Feb-15 5:32am

Abhinav S

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Member 1097736 15-Feb-15 12:09pm

still couldn't clear the error

Sergey Alexandrovich Kryukov · Answer 2 · 2015-02-15T07:02:00

Your approach is wrong from the very beginning. You should never create a query by concatenation of string taken from your UI. Instead, you need to use parametrized statements. Please see: http://msdn.microsoft.com/en-us/library/ff648339.aspx[^].

If you do it your way, you make your application totally vulnerable to a well-known exploit: SQL Injection. The user can write anything in the UI, including some SQL fragment. Are you getting the idea? This is how: http://xkcd.com/327[^].

Please see my past answers:
EROR IN UPATE in com.ExecuteNonQuery();[^],
hi name is not displaying in name?[^].

—SA