我遇到了jQuery模板的一个有趣问题。我希望能够通过JSON(我已经工作)获得动态模板,然后通过JSON匹配该模板,这就是我的问题所在。
以下是模板内容的内容:
$.getJSON('@Url.Action("GenerateAdminTemplate", "Home", new { area = "" })', function (data) {
if (data.Success) {
adminListTemplate = data.Result;
$("#adminListHeader").html(data.Header);
$.getJSON('@Url.Action("GenerateAdminSheet", "Home", new {area = ""})', function (dataz) {
if (dataz.Success) {
$("#templateListing").text(data.Result);
$("#markupBeforeTemplateListing").text(dataz.Result);
var myTemplate = $.template(null, data.Result);
//var arr = [
// { Name: "User1", Administrator: "yes", Supervisor: "no", User: "yes" },
// { Name: "User2", Administrator: "yes", Supervisor: "no", User: "no" }
//];
var arr = dataz.Result;
$.tmpl(myTemplate, arr).appendTo("#adminListBody");
} else {
}
});
} else {
}
});
模板本身回来并成功。当我取消注释硬编码数组(arr)并使用它而不是返回的值时,表格显示正如我所期望的那样。但是,当我使用JSON返回的数据时,我得到的内容看起来像这样(我删除了用户名,左边是空白区域):
从JSON请求返回的数据与“硬编码”数组(arr)完全相同。我在结果上使用了Beyond Compare,它们是100%完全相同的。
彻底性:这是返回JSon数据的代码:
public JsonResult GenerateAdminSheet()
{
bool success = false;
String errorMessage = String.Empty;
StringBuilder result = new StringBuilder();
try
{
List<String> listOfUsersAndRoles = new List<String>();
using (DataUtilityEntities data = new DataUtilityEntities(ConfigurationManager.ConnectionStrings["DataUtilityConnection"].ConnectionString))
{
List<User> users = data.Users.ToList();
foreach (User u in users)
{
List<Role> rolesUserBelongsTo = data.UserInRoles.Where(o => o.UserId == u.UserId).Select(p => p.Role).ToList();
CustomDictionary allRoles = new CustomDictionary();
//add the username as the first entry in the dictionary
allRoles.Add("Name", u.Username);
List<Role> allRolesList = data.Roles.ToList();
foreach (Role r in allRolesList)
{
allRoles.Add(String.Format("{0}", r.Name), rolesUserBelongsTo.Exists(p => p.Name == r.Name) ? "yes" : "no");
}
listOfUsersAndRoles.Add(allRoles.ToString());
}
}
//We have the list of the objects to pass back, now we just need to format them so they will work properly
result.Append("[");
foreach (String item in listOfUsersAndRoles)
{
result.Append(item);
if (listOfUsersAndRoles.Last() != item)
result.Append(", ");
}
result.Append("]");
success = true;
}
catch (Exception e)
{
success = false;
errorMessage = String.Format("@There was an error: {0}{1}", e.Message, e.InnerException == null ? String.Empty : String.Format("@({0})", e.InnerException.Message));
}
return Json(new { Success = success, ErrorMessage = errorMessage, Result = result.ToString() }, JsonRequestBehavior.AllowGet);
CustomDictionary只是.ToString()的重写:
public override string ToString()
{
StringBuilder result = new StringBuilder();
result.Append("{ ");
foreach (var pair in this)
{
result.Append(String.Format("{0}: \"{1}\"{2}", pair.Key, pair.Value, this.Last().Key == pair.Key ? String.Empty : ", "));
}
result.Append(" }");
return result.ToString();
}
当结果从JSon请求返回时,是否有遗漏的东西?
答案 0 :(得分:0)
在同事的帮助下弄清楚问题。 事实证明,模板不会将字符串值作为对象,因此您需要将其解析为JSON对象:
var arr = dataz.Result.toString();
var obj = $.parseJSON(arr);
但是,有一点需要注意,我这样做的方式略有不正确,$.parseJSON
方法会因“格式错误”的json而抛出异常。
我上面的内容:
[{Name: "user", Administrator: "yes" ... }, {Name: "user2", ...}]
无效,需要:
[{"Name": "user", "Administrator": "yes" ...}, {"Name": "user2", ...}]