problem With insert into DB

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C#

SQL

My program Reads variables from DB Successfully

But i have a problem in inserting data into it
i don't know why ?
i use this code in more programs and it works good

C# Class Code

class Gesture
    {
        //Sql DB Connection
        SqlConnection con1 = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\Amr Khalid\Documents\HandGestures.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");

         public void Addgesture(int i , string blue, string red, string green, string yellow, string magenta , string control)
        {
            SqlCommand mycom2 = new SqlCommand();
            mycom2.Connection = con1;
            mycom2.CommandType = CommandType.StoredProcedure;
            mycom2.CommandText = "AddGesture";
            mycom2.Parameters.AddWithValue("@int", i);
            mycom2.Parameters.AddWithValue("@blue", blue);
            mycom2.Parameters.AddWithValue("@red", red);
            mycom2.Parameters.AddWithValue("@green", green);
            mycom2.Parameters.AddWithValue("@yellow", yellow);
            mycom2.Parameters.AddWithValue("@magenta", magenta);
            mycom2.Parameters.AddWithValue("@Control", control);
            con1.Open();
            mycom2.ExecuteNonQuery();
            con1.Close();

        }
}

C# Program Code

int i = 77;
string control = comboBox1.Items.ToString();
Gesture newg = new Gesture();
newg.Addgesture(i, FBlue2, FRed2, FGreen2, FYellow2, FMagenta2, control);

StoredProcedure SQL code

ALTER PROCEDURE AddGesture

    @int int ,@blue varchar(50) , @red varchar(50) ,@green varchar(50) ,@yellow varchar(50) , @magenta varchar(50) , @Control varchar(50)

AS


    Insert into Gesture values (@int ,@blue,@red,@green,@yellow,@magenta,@Control)

    RETURN

>>>>>>>>>>>>>>>>>

i have the problem in
mycom2.ExecuteNonQuery();

The error is
Invalid object name 'Gesture'.

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