C#加载窗体的时候为什么很慢，占用的CPU也只有4%左右

Question

VS2008编写的软件，在主窗体运行的时候要加载另外的窗体，包括3个Panel控件和2个Windows窗体，在显示的时候很慢。不知道要怎么解决？

Answer 1

Mark 目前出现和你相同的情况 有待解决

Answer 2

这是显示2个panel控件和2个窗体的代码，2个Panel和2个窗体只能显示一个
 private void pSet2_Click(object sender, EventArgs e)//录像计划
        {
            try
            {
                net.Dispose();
                operateM.Dispose();
                netY = false;
                operateY = false;
                SetXianShiBmp(2);
                panel4.Visible = true;
                panel5.Visible = true;
                panel6.Visible = false;
                colors = pYes.BackColor;
                RadioButton[] allRadioB = {rB0,rB1,rB2,rB3,rB4,rB5,rB6,rB7,rB8,rB9,rB10,rB11,rB12,rB13,rB14,rB15,
                                  rB16,rB17,rB18,rB19,rB20,rB21,rB22,rB23,rB24,rB25,rB26,rB27,rB28,rB29,rB30,rB31
                                  ,rB32,rB33,rB34,rB35,rB36,rB37,rB38,rB39,rB40,rB41,rB42,rB43,rB44,rB45,rB46,rB47,rB48};
                for (int i = 0; i < 49; i++)
                {
                    if (i < HKSDK.GetTotalDSPs())
                    {
                        allRadioB[i].Visible = true;
                    }
                    else allRadioB[i].Visible = false;
                }
                rB0.Checked = true;
                dateTimePicker1.Value = jihuajieri[0, 0];
                dateTimePicker2.Value = jihuajieri[1, 0];
                pNo.BorderStyle = BorderStyle.None;
                pYes.BorderStyle = BorderStyle.Fixed3D;
                pMotion.BorderStyle = BorderStyle.None;
                jihualux();        
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + "pSet2_Click");
                return;
            }
        }        private void pSet3_Click(object sender, EventArgs e)//报警
        {
            try
            {
                net.Dispose();
                operateM.Dispose();
                netY = false;
                operateY = false;
                SetXianShiBmp(3);
                panel4.Visible = true;
                panel5.Visible = true;
                panel6.Visible = true;
                AlarmShu();
                dateTimePicker3.Value = alarmjieri[0, 0];
                dateTimePicker4.Value = alarmjieri[1, 0];
                rBA1.Checked = true;
                textBox1.Text = rBA1.Text;
                RadioButton[] allRadioB = {Ch1,Ch2,Ch3,Ch4,Ch5,Ch6,Ch7,Ch8,Ch9,Ch10,Ch11,Ch12,Ch13,Ch14,Ch15,Ch16,Ch17,Ch18,Ch19,Ch20,
                                           Ch21,Ch22,Ch23,Ch24,Ch25,Ch26,Ch27,Ch28,Ch29,Ch30,Ch31,Ch32,Ch33,Ch34,Ch35,Ch36,Ch37,Ch38,
                                           Ch39,Ch40,Ch41,Ch42,Ch43,Ch44,Ch45,Ch46,Ch47,Ch48,Ch49};
                checkedListBox2.Items.Clear();
                for (int i = 0; i < HKSDK.GetTotalDSPs(); i++)
                {
                    checkedListBox2.Items.Add(allRadioB[i].Text);
                }
                AlarmJM(0);
                pictureBox37.BorderStyle = BorderStyle.Fixed3D;
                pictureBox38.BorderStyle = BorderStyle.None;
                colorsA = pictureBox37.BackColor;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + "pSet3_Click");
                return;
            }
        }
 private void pSet4_Click(object sender, EventArgs e)//网络
        {
            try
            {
                Panel3False();
                panel4.Visible = false;
                if (netY == true)
                {
                    net.Dispose();
                }
                else
                {
                    netY = true;
                }
                operateM.Close();
                operateY = false;
                SetXianShiBmp(4);
                net = new InterNet();
                net.Location = new Point(19, 14);
                net.Show();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + "pSet4_Click");
                return;
            }
        }
 private void pSet5_Click(object sender, EventArgs e)//用户
        {
            try
            {
                //  panel3.Visible = true;
                Panel3False();
                panel4.Visible = false;
                net.Close();
                netY = false;
                SetXianShiBmp(5);
                if (operateY == true)
                {
                    operateM.Close();
                }
                else
                {
                    operateY = true;
                }
                WriteLog(NameOfDelu, "操作员管理", "");
                operateM = new yingpanlx.Settings.OperateManage();
                operateM.Location = new Point(19, 14);
                operateM.Show();
                
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + "pSet5_Click");
                return;
            }
        }

Answer 3

load中操作时间如何
减少相关控件

Answer 4

load 2个Panel的时候时间不是太长，但是load 2个窗体的时候就比较慢了...