i dont get any error.but cant update data in table

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ASP.NET

MY ROW UPDATING CODE IS BELOW


protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
TextBox txtname = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox7");
TextBox txtcity = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox8");
TextBox txtstate = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox9");
TextBox txtbirthdate = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox10");
TextBox txteducation = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox11");
TextBox txtaddress = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox12");
TextBox txthobby = (TextBox)GridView1.Rows[e.RowIndex].FindControl("textbox13");
RadioButtonList rgender = (RadioButtonList)GridView1.Rows[e.RowIndex].FindControl("radiobuttonlist2");
prop.name = txtname.Text;
prop.city = txtcity.Text;
prop.state = txtstate.Text;
prop.birthdate = txtbirthdate.Text;
prop.education = txteducation.Text;
prop.address = txtaddress.Text;
prop.gender = rgender.Text;
prop.hobby = txthobby.Text;
data.update(prop);
GridView1.EditIndex = -1;
fillgrid();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
fillgrid();
}
}


update stored procedure

ALTER PROCEDURE dbo.updatedata

	
	@id int,
	 @name varchar(50),
	@city varchar(50),
	@state varchar(50),
	@birthdate varchar(50),
	@education varchar(50),
	@address varchar(50),
	@gender varchar(50),
	@hobby varchar(50)


AS
	update info set name=@name,city=@city,state=@state,birthdate=@birthdate,education=@education,address=@address,gender=@gender,hobby=@hobby where id=@id
	RETURN

[edit]Code blocks added - OriginalGriff[/edit]