项目开发过程中,时常用到多选框动态加载问题,比如说:
系统设计往来单位(客商)管理功能一般都用到单位性质(施工单位、设备供货商、勘察单位、设计单位等等)是需要一个用户自定义的字段,需要用到多选框动态加载,总结用到的方法有以下两种:
方法一:利用服务端控件
在aspx页面添加 <asp:CheckBoxList ID="cblist" runat="server" RepeatDirection="Horizontal" ></asp:CheckBoxList> 在aspx.cs文件添加 绑定初始化数据: cblist.DataSource = ds; cblist.DataTextField = "name"; cblist.DataValueField = "id"; cblist.DataBind(); 保存时 string str=""; foreach (ListItem li in cblsit.Items) { if(li.Selected) { str += li.Value + ","; } } str = str.Remove(str.Length - 1); 显示时 string ifstr = "SHJD0001,SHJD0002,SHJD0003"; foreach (ListItem li in cblsit.Items) { if (ifstr.IndexOf(li.Value)!=-1) { li.Selected=true;//str += li.Value + ","; } }
方法二:利用html拼接
在aspx页面添加 <span id="zjlypropertielists" runat="server" style="text-align: left; width: 100%"></span> 在aspx.cs文件添加 绑定初始化数据: zjlypropertielists.InnerHtml = CheckboxList.ZjlyCheckboxlist("ZJLY"); /// <summary> /// 加载资金来源列表 /// </summary> /// <param name="p"></param> /// <returns></returns> public string ZjlyCheckboxlist(string p) { string spanhistory = ""; string strSQL = ""; DataSet ds = new DataSet(); //spanhistory += "<label> 资金来源:</label>"; strSQL += "select h.id as code,h.name as name from xt_zdk h where h.codingClass='ZJLY'"; ds = general.Select(strSQL); int count = ds.Tables[0].Rows.Count; for (int i = 0; i < count; i++) { spanhistory += "<label><input type=\"checkbox\" value=\"" + ds.Tables[0].Rows[i]["code"].ToString() + "\" name=\"Zjlycb\" runat=\"server\" />" + ds.Tables[0].Rows[i]["name"].ToString() + "</label>"; } return spanhistory; } 保存时 string ZJLYcbvalue = HttpContext.Current.Request.Params["Zjlycb"]; 显示的时候: zjlypropertielists.InnerHtml = CheckboxList.ZjlyCheckboxlist(xmpsrw.zjly, "ZJLY"); public string ZjlyCheckboxlist(string p, string p_2) { string spanhistory = ""; string strSQL = ""; DataSet ds = new DataSet(); //spanhistory += "<label> 资金来源:</label>"; strSQL += "select h.id as code,h.name as name from xt_zdk h where h.codingClass='ZJLY'"; ds = general.Select(strSQL); int count = ds.Tables[0].Rows.Count; for (int i = 0; i < count; i++) { if (p.IndexOf(ds.Tables[0].Rows[i]["code"].ToString())==-1) { spanhistory += "<label><input type=\"checkbox\" value=\"" + ds.Tables[0].Rows[i]["code"].ToString() + "\" name=\"Zjlycb\" runat=\"server\" />" + ds.Tables[0].Rows[i]["name"].ToString() + "</label>"; } else { spanhistory += "<label><input type=\"checkbox\" value=\"" + ds.Tables[0].Rows[i]["code"].ToString() + "\" name=\"Zjlycb\" checked=\"checked\" runat=\"server\" />" + ds.Tables[0].Rows[i]["name"].ToString() + "</label>"; } } return spanhistory; }