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CS1061: 'ASP.sampleexample_aspx' does not contain a definition for 'Btnsave_Click' and no extension method 'Btnsave_Click' accepting a first argument of type 'ASP.sampleexample_aspx' could be found (are you missing a using directive or an assembly reference?)
Posted

It means you have added a button named Btnsave in desingning page and given a event to it named Btnsave_Click but you did not define it on .aspx.cs page.
Copy below code on .aspx.cs page and your error will not be displayed again
protected void Btnsave_Click(object sender, EventArgs e)
{
}
 
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VICK 21-May-13 7:12am    
This solution seems to be perfect for mine.. although i am new to this field. & IT IS BIT IN REVERSE.. but shocked to see this one downvoted by someone. :(

i think who ever downvotes any solution should comment out the reason for that as well so that the one who posted that solution could improve his/her knowledge.
Hi Balu,

I think, you coded for Btnsave_Click in cs page and later you removed the code from it.
In aspx page remove the "onClick = Btnsave_Click" and now it will work.
This would remove the error I believe.

Regards,
RK
 
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v2
As far as my short knowledge have debugged this type of errors multiple time, it shows that you have define a code chunk in .cs file but might be forgot to define the event against the user control in design page.

Do it and that gona fly ... :)
 
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