c#主窗体加载方法

//主窗体加载方法
        private void ReleaseOutForm_Load(object sender, EventArgs e)
        {
            //水库下拉列表
            util=new ReleaseOutUtil();
            String[] arr1 = util.getSTNM("1");//1表示水库类型
            comboBoxEx1.DataSource = arr1;
            comboBoxEx1.SelectedIndex = 0;
            comboBoxEx1.DropDownStyle = ComboBoxStyle.DropDownList;//设为只读
            //建筑物下拉列表
            string[] arr2 = new string[2];
            arr2[0] = "泄洪洞";
            arr2[1] = "溢洪道";
            comboBoxEx2.DataSource = arr2;
            comboBoxEx2.SelectedIndex = 0;
            comboBoxEx2.DropDownStyle = ComboBoxStyle.DropDownList;//设为只读
            //起始、截止时间
            dateTimeInput1.Value = DateTime.Now.AddMonths(-1);
            dateTimeInput2.Value = DateTime.Now;
            dateTimeInput1.MaxDate = DateTime.Now;
            dateTimeInput2.MaxDate = DateTime.Now;
        }