/// <summary>
        /// 添加数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripMenuItem_DataGridViewRowAdd_Click(object sender, EventArgs e)
        {
            if (this.myEventArgs_WeldingSubject == null)
            {
                return;
            }
            Form_WeldingSubjectPosition_Update myForm = new Form_WeldingSubjectPosition_Update();

            myForm.myClass_WeldingSubjectPosition           = new Class_WeldingSubjectPosition();
            myForm.myClass_WeldingSubjectPosition.SubjectID = this.myEventArgs_WeldingSubject.str_SubjectID;
            myForm.bool_Add = true;
            if (myForm.ShowDialog() == DialogResult.OK)
            {
                this.RefreshData(true);
            }
        }
        /// <summary>
        /// 修改数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripMenuItem_DataGridViewRowModify_Click(object sender, EventArgs e)
        {
            Form_WeldingSubjectPosition_Update myForm = new Form_WeldingSubjectPosition_Update();

            myForm.myClass_WeldingSubjectPosition                 = new Class_WeldingSubjectPosition();
            myForm.myClass_WeldingSubjectPosition.SubjectID       = this.myEventArgs_WeldingSubject.str_SubjectID;
            myForm.myClass_WeldingSubjectPosition.WeldingPosition = this.dataGridView_Data.CurrentRow.Cells["WeldingPosition"].Value.ToString();
            if (myForm.myClass_WeldingSubjectPosition.FillData())
            {
                myForm.bool_Add = false;
                if (myForm.ShowDialog() == DialogResult.OK)
                {
                    this.RefreshData(true);
                }
            }
            else
            {
                MessageBox.Show("该行数据已被删除!");
            }
        }