为什么自定义控件里面写的控件事件不能触发

Question

就是这个事件不能触发                     rowData = rowData + "<td class='" + (i % 2 != 0 ? CssNameGridColumn + "_" + (j + 1) : CssNameGridColumnAlternating) + "'>" + courceInfo[i][j] + "</td>";
                    }
                    rowData = rowData + "";
                    placeHoders.Controls.Add(new LiteralControl(rowData));
                    placeHoders.Controls.Add(new LiteralControl("<td class='" + (i % 2 != 0 ? CssNameGridColumn + "_" + 1 : CssNameGridColumnAlternating) + "' >"));
                    ImageButton imgBtnInfo = new ImageButton();
                    imgBtnInfo.ImageUrl = "~/Images/info.gif";
                    imgBtnInfo.Click+=new ImageClickEventHandler(imgBtnInfo_Click);
                    placeHoders.Controls.Add(imgBtnInfo);
                    placeHoders.Controls.Add(new LiteralControl("</td>"));
                    //
                    placeHoders.Controls.Add(new LiteralControl("<td class='" + (i % 2 != 0 ? CssNameGridColumn + "_" + 1 : CssNameGridColumnAlternating) + "'>"));
                    ImageButton imgBtnDelta = new ImageButton();
                    if (Int32.Parse(courceInfo[i][4]) > 4)
                    {
                        imgBtnDelta.ImageUrl = Delta;
                        imgBtnDelta.Click += new ImageClickEventHandler(imgBtnDelta_Click);
                    }
                    else if (Int32.Parse(courceInfo[i][4]) == 0)
                    {
                        imgBtnDelt

Answer 1

这些代码不要放在!IsPostBack里面

Answer 2

请问你的事件写哪里了
                    rowData = rowData + " <td class='" + (i % 2 != 0 ? CssNameGridColumn + "_" + (j + 1) : CssNameGridColumnAlternating) + "'>" + courceInfo[i][j] + " </td>";
                    }
                    rowData = rowData + "";
                    placeHoders.Controls.Add(new LiteralControl(rowData));
                    placeHoders.Controls.Add(new LiteralControl(" <td class='" + (i % 2 != 0 ? CssNameGridColumn + "_" + 1 : CssNameGridColumnAlternating) + "' >"));
                    ImageButton imgBtnInfo = new ImageButton();
                    imgBtnInfo.ImageUrl = "~/Images/info.gif";
                    imgBtnInfo.Click+=new ImageClickEventHandler(imgBtnInfo_Click);
                    placeHoders.Controls.Add(imgBtnInfo);
                    placeHoders.Controls.Add(new LiteralControl(" </td>"));
                    //
                    placeHoders.Controls.Add(new LiteralControl(" <td class='" + (i % 2 != 0 ? CssNameGridColumn + "_" + 1 : CssNameGridColumnAlternating) + "'>"));
                    ImageButton imgBtnDelta = new ImageButton();
                    if (Int32.Parse(courceInfo[i][4]) > 4)
                    {
                        imgBtnDelta.ImageUrl = Delta;
                        imgBtnDelta.Click += new ImageClickEventHandler(imgBtnDelta_Click);
                    }
                    else if (Int32.Parse(courceInfo[i][4]) == 0)
                    {
                        imgBtnDelt