asp.net两级联动（包含添加和修改） |
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<script language="javascript" type="text/javascript"> //科目数据初始化 var subcat = new Array(); subcat[0] = new Array(0, 请选择科目, 0); subcat[1] = new Array(x1, 语文, x1yw); subcat[2] = new Array(x2, 语文, x2yw); subcat[3] = new Array(x3, 语文, x3yw); subcat[4] = new Array(x4, 语文, x4yw); subcat[5] = new Array(x5, 语文, x5yw); subcat[6] = new Array(x6, 语文, x6yw); subcat[7] = new Array(c5, 语文, c5yw); subcat[8] = new Array(c6, 语文, c6yw); subcat[9] = new Array(c7, 语文, c7yw); subcat[10] = new Array(g1, 语文, g1yw); subcat[11] = new Array(g3, 语文, g3yw); subcat[12] = new Array(g4, 语文, g4yw); subcat[13] = new Array(x1, 数学, x1sx); subcat[14] = new Array(x2, 数学, x2sx); subcat[15] = new Array(x3, 数学, x3sx); subcat[16] = new Array(x4, 数学, x4sx); subcat[17] = new Array(x5, 数学, x5sx); subcat[18] = new Array(x6, 数学, x6sx); subcat[19] = new Array(c5, 数学, c5sx); subcat[20] = new Array(c6, 数学, c6sx); subcat[21] = new Array(c7, 数学, c7sx); subcat[22] = new Array(g1, 数学, g1sx); subcat[23] = new Array(g3, 数学, g3sx); subcat[24] = new Array(g4, 数学, g4sx); subcat[25] = new Array(x1, 英语, x1yy); subcat[26] = new Array(x2, 英语, x2yy); subcat[27] = new Array(x3, 英语, x3yy); subcat[28] = new Array(x4, 英语, x4yy); subcat[29] = new Array(x5, 英语, x5yy); subcat[30] = new Array(x6, 英语, x6yy); subcat[31] = new Array(c5, 英语, c5yy); subcat[32] = new Array(c6, 英语, c6yy); subcat[33] = new Array(c7, 英语, c7yy); subcat[34] = new Array(g1, 英语, g1yy); subcat[35] = new Array(g3, 英语, g3yy); subcat[36] = new Array(g4, 英语, g4yy); subcat[37] = new Array(c5, 物理, c5wl); subcat[38] = new Array(c6, 物理, c6wl); subcat[39] = new Array(c7, 物理, c7wl); subcat[40] = new Array(g1, 物理, g1wl); subcat[41] = new Array(g3, 物理, g3wl); subcat[42] = new Array(g4, 物理, g4wl); subcat[43] = new Array(c5, 化学, c5hx); subcat[44] = new Array(c6, 化学, c6hx); subcat[45] = new Array(c7, 化学, c7hx); subcat[46] = new Array(g1, 化学, g1hx); subcat[47] = new Array(g3, 化学, g3hx); subcat[48] = new Array(g4, 化学, g4hx); subcat[49] = new Array(c5, 政治, c5zz); subcat[50] = new Array(c6, 政治, c6zz); subcat[51] = new Array(c7, 政治, c7zz); subcat[52] = new Array(g1, 政治, g1zz); subcat[53] = new Array(g3, 政治, g3zz); subcat[54] = new Array(g4, 政治, g4zz); subcat[55] = new Array(c5, 历史, c5ls); subcat[56] = new Array(c6, 历史, c6ls); subcat[57] = new Array(c7, 历史, c7ls); subcat[58] = new Array(g1, 历史, g1ls); subcat[59] = new Array(g3, 历史, g3ls); subcat[60] = new Array(g4, 历史, g4ls); subcat[61] = new Array(c5, 生物, c5sw); subcat[62] = new Array(c6, 生物, c6sw); subcat[63] = new Array(c7, 生物, c7sw); subcat[64] = new Array(g1, 生物, g1sw); subcat[65] = new Array(g3, 生物, g3sw); subcat[66] = new Array(g4, 生物, g4sw); subcat[67] = new Array(c5, 地理, c5dl); subcat[68] = new Array(c6, 地理, c6dl); subcat[69] = new Array(c7, 地理, c7dl); subcat[70] = new Array(g1, 地理, g1dl); subcat[71] = new Array(g3, 地理, g3dl); subcat[72] = new Array(g4, 地理, g4dl); subcat[73] = new Array(x1, 其它, x1qt); subcat[74] = new Array(x2, 其它, x2qt); subcat[75] = new Array(x3, 其它, x3qt); subcat[76] = new Array(x4, 其它, x4qt); subcat[77] = new Array(x5, 其它, x5qt); subcat[78] = new Array(x6, 其它, x6qt); subcat[79] = new Array(c5, 其它, c5qt); subcat[80] = new Array(c6, 其它, c6qt); subcat[81] = new Array(c7, 其它, c7qt); subcat[82] = new Array(g1, 其它, g1qt); subcat[83] = new Array(g3, 其它, g3qt); subcat[84] = new Array(g4, 其它, g4qt); //选择年级 function ChangeGrade(obj,id) { var oObj = document.getElementById(id); oObj.length = 0; for(i=0; i<subcat.length; i++) { if(subcat[i][0] == obj) { oObj.options[oObj.length] = new Option(subcat[i][1], subcat[i][2]); } } } //修改页面科目数据加载 function LoadingCourse() { var SubjectSelect = "<%=SubjectSelect %>"; var GradeSelect = "<%=GradeSelect %>"; if(SubjectSelect != "") { LoadingSubject(GradeSelect, Course, SubjectSelect); } } function LoadingSubject(obj,id, sid) { var slt = document.forms[0].elements["id"]; var oObj = document.getElementById(id); oObj.length = 0; oObj.options[0] = new Option(全部科目, 0); for(i=0; i<subcat.length; i++) { if(subcat[i][0] == obj) { oObj.options[oObj.length] = new Option(subcat[i][1], subcat[i][2]); if(subcat[i][2] == sid) { oObj.options[oObj.length-1].selected = true; } } } } </script> <body onload="LoadingCourse();"> <select name="Grade" id="Grade" class="input" onchange="ChangeGrade(this.value,Course)"> <option value="0">请选择年级</option> <option value="x1" <%=GradeSelect == "x1" ? "selected":"" %>>一年级</option> <option value="x2" <%=GradeSelect == "x2" ? "selected":"" %>>二年级</option> <option value="x3" <%=GradeSelect == "x3" ? "selected":"" %>>三年级</option> <option value="x4" <%=GradeSelect == "x4" ? "selected":"" %>>四年级</option> <option value="x5" <%=GradeSelect == "x5" ? "selected":"" %>>五年级</option> <option value="x6" <%=GradeSelect == "x6" ? "selected":"" %>>六年级</option> <option value="c5" <%=GradeSelect == "c5" ? "selected":"" %>>七年级</option> <option value="c6" <%=GradeSelect == "c6" ? "selected":"" %>>八年级</option> <option value="c7" <%=GradeSelect == "c7" ? "selected":"" %>>九年级</option> <option value="g1" <%=GradeSelect == "g1" ? "selected":"" %>>高一</option> <option value="g3" <%=GradeSelect == "g3" ? "selected":"" %>>高二</option> <option value="g4" <%=GradeSelect == "g4" ? "selected":"" %>>高三</option> </select> <select name="Course" id="Course" class="input"> <option value="0">请选择年级</option> </select> </body> //C#代码 protected void Page_Load(object sender, System.EventArgs e) { public string GradeSelect = String.Empty; public string SubjectSelect = String.Empty; if (!(IsPostBack)) { GradeSelect = Request.QueryString["Grade"]; SubjectSelect = Request.QueryString["Course"]; } } |
