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  • 通过js根据后台数据动态生成一个页面

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ExportSelField.aspx.cs" Inherits="GDAS.Web.DocManage.Library.ExportSelField" %>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <title>test</title>
        <link href="../../CSS/SubPage.css" rel="Stylesheet" type="text/css" />

        <script language="javascript" type="text/javascript">
            function CloneTr() {
                var newRow;
                var table = document.getElementById("tbField");
                if (table.rows[0]) {
                    newRow = table.rows[1].cloneNode(true);
                }
                else {
                    newRow = document.createElement("tr");
                    newRow.appendChild(document.getElementById("td"));
                }
                newRow.style.display = "block";
                table.rows[0].parentElement.appendChild(newRow);
                var maxLength = table.rows.length;
                table.rows[maxLength - 1].cells[0].innerHTML = "<input type='checkbox' style='cursor:hand'/>";
                table.rows[maxLength - 1].cells[1].firstChild.value = "";
                table.rows[maxLength - 1].cells[2].innerHTML = "&nbsp;";
                table.rows[maxLength - 1].cells[3].innerHTML = "&nbsp;";
            }

            //删除最后一行,如果是只有一行记录则清空行
            function DeleteTr() {
                var table = document.getElementById("tbField");
                var index = event.srcElement.parentNode.parentNode.rowIndex;
                var result = window.confirm("您确认删除此记录?");
                if (result) {
                    table.deleteRow(index);
                    return;
                }
            }


            function LoadData() {
                var type = "FILE";
                var DocTypeID = "<%=this.DocTypeID%>";
                var response = ExportSelField.GetExportField(type,DocTypeID);
                if (response.error != null) {
                    alert(response.error);
                    return;
                }
                var dt = response.value;
                var table = document.getElementById("tbField");
                CreateTable(dt, table);
            }

            function CreateTable(dt, table) {
                for (var i = 0; i < dt.Rows.length; i++) {
                    var row_count;
                    CloneTr(table);
                    row_count = table.rows.length - 1;
                    table.rows[row_count].cells[0].innerHTML = "<input type='checkbox' style='cursor:hand' checked='true'/>";
                    table.rows[row_count].cells[1].firstChild.value = (dt.Rows[i].Name == "") ? "&nbsp;" : dt.Rows[i].Name;
                    table.rows[row_count].cells[2].innerHTML = (dt.Rows[i].DBColumnName == "") ? "&nbsp;" : dt.Rows[i].DBColumnName;
                    table.rows[row_count].cells[3].innerHTML = (dt.Rows[i].DBColumnType == "") ? "&nbsp;" : dt.Rows[i].DBColumnType;
                }
            }

            function SelectAll(obj) {
                var table = document.getElementById("tbField");
                for (i = 1; i < table.rows.length; i++) {
                    table.rows[i].childNodes[0].childNodes[0].checked = obj.checked;
                }
            }

            function Export() {
                window.returnValue = GetValue();
                window.close();
            }

            function GetValue() {
                var result = "";
                var iCount = 0;
                var table = document.getElementById("tbField");
                document.getElementById("hdfFieldString").value = "";
                for (var i = 2; i < table.rows.length; i++) {
                    if (table.rows[i].childNodes[0].childNodes[0].checked == true) {
                        var field0 = field1 = field2 = "";

                        field0 = table.rows[i].cells[1].firstChild.value;
                        field1 = table.rows[i].cells[2].innerHTML;
                        field2 = table.rows[i].cells[3].innerHTML;
                        result += GetFieldString(field0, field1, field2) + ",";
                        iCount++;
                    }
                }
                if (iCount == 0)
                    result = "*";
                return result;
            }

            function GetFieldString(cField, eField, FieldType) {
                var result = "";
                switch (FieldType) {
                    case "date":
                    case "datetime":                        {
                            result = "convert(varchar, " + eField + ", 23) as '" + cField + "'";
                            break;
                        }
                    default:
                        {
                            result = eField + " as '" + cField + "'";
                            break;
                        }
                }
                return result;
            }
        </script>

    </head>
    <body onload="LoadData()">
        <form id="form1" runat="server">
        <div id="main" style="95%">
            <fieldset>
                <legend>选择导出字段</legend>
                <table id="tbField" class="grid">
                    <tr>
                        <th style="60px">
                            <input type='checkbox' id="chkall" style='cursor: hand' title="全选" onclick="SelectAll(this)"
                                checked="checked" />
                        </th>
                        <th>
                            字段名
                        </th>
                        <th style="display: none">
                            fieldname
                        </th>
                        <th style="display: none">
                            数据类型
                        </th>
                    </tr>
                    <tr style="display: none">
                        <td align="center">
                            <input type='checkbox' />
                        </td>
                        <td align="center">
                            <asp:TextBox ID="TextBox1" runat="server" Width="95%"></asp:TextBox>
                        </td>
                        <td style="display: none">
                            &nbsp;
                        </td>
                        <td style="display: none">
                            &nbsp;
                        </td>
                    </tr>
                </table>
            </fieldset>
            <fieldset style="text-align: center; margin-top: 10px">
                <input type="button" id="btnExport" class="btnS" value="导出" style=" 60px;
                    height: 24px" onclick="Export();" />&nbsp;&nbsp;
                <input type="button" class="btnS" style=" 60px; height: 24px" value="关闭"
                    onclick="javascript:window.close();" />
            </fieldset>
        </div>
        <asp:HiddenField ID="hdfFieldString" runat="server" />
        </form>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/StevenDu/p/3418152.html
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