循环创建控件，如何释放控件内存

2011-05-06 05:33:57 338 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

qt内存自动释放的两种情况通过上面实验可知，成为子控件，或者成为布局中的控件，都会跟着释放。阅读详情

现在的问题是：每执行一次下面的代码，内存就增加，如何释放控件内存。

有一个Timer,定时执行下面的代码。

代码如下：



int row = 1;

            int columnNum = 5;

            int width = 217;

            int height = 266;

            int left = 20;

            int top = 16;

  for (int z = 0; z < groupPanel5.Controls.Count; z++)



                {

                    Control c = groupPanel5.Controls[z];

                   foreach (Control cc in c.Controls)

                        cc.Dispose();

                    groupPanel5.Controls.RemoveAt(z);

                    c.Dispose(); 

                }

                groupPanel5.Controls.Clear();

                GC.Collect();

                foreach (ServersInfo sv in servs)

                {

                    DevComponents.DotNetBar.PanelEx pe = new DevComponents.DotNetBar.PanelEx();





                   DevComponents.DotNetBar.Controls.ReflectionImage refimage = new DevComponents.DotNetBar.Controls.ReflectionImage();

                    refimage.Location = new System.Drawing.Point(0, 0);

                    refimage.Name = "refimage" + sv.ID.ToString();

                    refimage.Size = new System.Drawing.Size(217, 125);                    refimage.Tag = pe;

                    pe.Name = "panelEx_Server" + sv.ID.ToString();



                    pe.Tag = sv;

                    pe.Size = new Size(width, height);



                    if (i % columnNum == 0)

                    {

                        if (i != 0)

                            row++;



                        pe.Location = new Point(left, (row - 1) * height + top * row);



                    }

                    else

                    {

                        if (row == 1)

                        {

                            pe.Location = new Point(i * width + (i + 1) * left, top);

                        }

                        else

                        {

                            pe.Location = new Point((columnNum - (((row * columnNum) - 1) - i) - 1) * width + (columnNum - (((row * columnNum) - 1) - i)) * left, (row - 1) * height + top * row);

                        }

                    }



                    DevComponents.DotNetBar.Controls.ReflectionLabel reflabel_Serverinfo = new DevComponents.DotNetBar.Controls.ReflectionLabel();

                    reflabel_Serverinfo.Location = new System.Drawing.Point(0, 100);

                    reflabel_Serverinfo.Name = "reflabel" + sv.ID.ToString();

                    reflabel_Serverinfo.Size = new System.Drawing.Size(217, 65);



                    DevComponents.DotNetBar.Controls.ReflectionLabel reflabel = new DevComponents.DotNetBar.Controls.ReflectionLabel();

                    reflabel.Location = new System.Drawing.Point(0, 100);

                    reflabel.Name = "reflabel" + sv.ID.ToString();

                    reflabel.Size = new System.Drawing.Size(217, 63);

                      pe.Controls.Add(reflabel);

                    pe.Controls.Add(reflabel_Serverinfo);

                    pe.Controls.Add(refimage);

                    this.groupPanel5.Controls.Add(pe);

                    Application.DoEvents();

              

                    i++;

                }