Question

我有一个可以搜索记录的视图。

@using (Html.BeginForm("Index", "Project", FormMethod.Get, new { role = "form" }))
{

    <div class="input-group">
        <input name="Query" type="text" class="form-control" placeholder="">
        <span class="input-group-btn" style="width:0;">
            <button class="btn btn-default" type="submit">Search</button>
        </span>
    </div>
}

@if (Model.Any())
{
    <div class="col-md-10">
        <table class="table table-striped table-hover">
            <tr>
                <th>
                    Year
                </th>
                <th>
                    Project
                </th>
                <th>
                    Status
                </th>
                <th>

                </th>
            </tr>

            @foreach (var item in Model)
        {
                <tr>
                    <td>
                        @Html.DisplayFor(m => item.PROJ_YEAR)
                    </td>
                    <td>
                        @Html.DisplayFor(m => item.PROJ_NAME)
                    </td>
                    <td>
                        @Html.DisplayFor(m => item.PROJ_STATUS)
                    </td>
                </tr>
            }
        </table>}
else
{
    <p style="margin:20px 0;">No Projects found.</p>
}

这是控制器

public ActionResult Index(int page = 1, string Query = null)

{
    var projectList = db.TBL_PROJECTS.Include(x => x.TBL_STATUS).Where(x => x.PROJ_CAT == 1).ToList().OrderByDescending(x => x.ID);

     if (!string.IsNullOrEmpty(Query))
        {
            projectList = projectList
                .Where(x => x.PROJ_NAME.ToLower().Contains(Query.ToLower()))
                .ToList().OrderByDescending(x => x.ID);

            if (projectList.Count() == 0)
            {
               var list = db.TBL_PROJECTS.Include(x => x.TBL_STATUS).Where(x => x.PROJ_CAT == 1).ToList().OrderByDescending(x => x.ID);
               projectList = list
               .Where(x => x.PROJ_YEAR.ToLower().Contains(Query.ToLower()))
              .ToList().OrderByDescending(x => x.ID);

            }

        }
    return View(new PagedList.PagedList<TBL_PROJECT>(projectList, page, 15));
}

执行搜索时，它只会根据PROJ_NAME执行搜索。我想通过＆＃34; PROJ_YEAR＆＃34;太。当我搜索＆＃34; 1998＆＃34;时，将找不到记录。当我搜索＆＃34; Paint Job＆＃34;在1998年，将显示记录。

Answer 1

 projectList = projectList
                .Where(x => x.PROJ_NAME.ToLower().Contains(Query.ToLower())
                         || x.PROJ_YEAR = Int32.Parse(Query)  )
                .ToList().OrderByDescending(x => x.ID);

或使用Int32.TryParse()

Answer 2

因为您只比较项目名称列。因此，当您提交年份时它不起作用。您应该修改控制器，例如：

public ActionResult Index(int page = 1, string Query = null)

    {
        var projectList = db.TBL_PROJECTS.Include(x => x.TBL_STATUS).Where(x => x.PROJ_CAT == 1).ToList().OrderByDescending(x => x.ID);

        if (!string.IsNullOrEmpty(Query))
        {
            projectList = projectList
                .Where(x => x.PROJ_NAME.ToLower().Contains(Query.ToLower())
                        || x.PROJ_YEAR.ToLower().Contains(Query.ToLower()))
                .ToList().OrderByDescending(x => x.ID);

        }

        return View(new PagedList.PagedList<TBL_PROJECT>(projectList, page, 15));
    }

Answer 3

找到答案。对于稍后遇到此类问题的人来说，这可能会有用。这就是我做到的。

 if (!string.IsNullOrEmpty(Query))
        {
            projectList = projectList
                .Where(x => x.PROJ_NAME.ToLower().Contains(Query.ToLower()))
                .ToList().OrderByDescending(x => x.ID);
            if (projectList.Count() == 0)
            {
                var list = db.TBL_PROJECTS.Include(x => x.TBL_STATUS).Where(x => x.PROJ_CAT == 1).ToList().OrderByDescending(x => x.ID);
                var k = list
                .Where(x => x.PROJ_YEAR != null)
                .ToList().OrderByDescending(x => x.ID);
                projectList = k
                .Where(x => x.PROJ_YEAR.ToLower().Contains(Query.ToLower()))
                .ToList().OrderByDescending(x => x.ID);


            }

MVC。按多个标准搜索

3 个答案: