我有一个Kendo网格，在.ToolBar我有一个搜索框，根据键入的内容和整体过滤网格，它工作正常。
问题是它没有读取/搜索涉及使用ICollection特定列（Maker＆Associated）。 我尝试了一些东西，但我无法弄清楚如何正确地为这些列编写搜索。
我会注意到Maker ＆ Associated列本身正在正确填充，并且每个列的自己的过滤器也能正常工作
首先，这是一个关于如何在Index.cshtml中创建列和搜索框的精简示例
@(Html.Kendo().Grid(Model).Name("gridWF") .Columns(columns => { column.Bound (p1 => p1.Id.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Name.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Item.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Maker.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Associated.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); } .Pageable() .ColumnMenu() .ToolBar(toolBar => toolBar.Template(@<text><input class='k-textbox' value="Search..." onfocus="if (this.value=='Search...') this.value='';" onblur="this.value = this.value==''?'Search...':this.value;" id='searchbox'/></text>) .DataSource(datasource => datasource.Ajax() .PageSize(15) .ServerOperation(false) .Read(r => r.Action("Read", "Workflows").Data("addSearch")) ) <script type="text/javascript"> function addSearch() { return { searchbox: $('#searchbox').val() }; } $('#searchbox').keyup(function () { $('#gridWF').data('kendoGrid').dataSource.read(); }); </script>控制器的搜索部分
private IEnumerable<WorkflowViewModel> GetData(string searchbox = "") { var number = 0; int.TryParse (searchbox, out number); var result = (from w in Repo.GetWF() where w.Id == number || w.Name.ToLower ().Contains (searchbox.ToLower ()) || //Failed attempt w.UserRoles.Where (ur => ur.Role.Name.ToLower ().Contains (searchbox.ToLower())) != null || //Failed attempt w.UserRoles.Where (ur => ur.Role != null && wr.Role.Name.ToLower().Equals ("maker", StringComparison.InvariantCultureIgnoreCase)).Select (wr => wr.UserName).FirstOrDefault ().Contains (searchbox.ToLower()) || w.ImportProduct.Item.Name.ToLower ().Contains (searchbox.ToLower ()) || searchbox == "" select new ViewModel (w, User.Identity.Name)).ToList(); return result; }以下是ViewModel.cs适用的代码
public class ViewModel public ViewModel(Workflow workflow, string userName = null) { Id = workflow.Id; Name = workflow.Name; Item= workflow.ImportProduct.Item.Name Maker= Workflow.GetByRoles(workflow, "maker"); Associated= Workflow.GetByRoles(workflow, "associated"); }Workflow.cs
public class Workflow { public Workflow() { UserRoles = new List<UserRole>(); } [Key] public int Id { get; set; } [Required(ErrorMessage="*")] [Display(Name="Name")] public string Name { get; set; } [Required] public int ImportId { get; set; } [ForeignKey("ImportId")] public virtual Product ImportProduct { get; set; } public ICollection<UserRole> UserRoles { get; set; } public static string GetByRoles (Workflow workflow, string role) { string userString = ""; if(workflow.UserRoles != null) { var query = from ur in workflow.UserRoles where ur.Role.Name.ToLower() == role.ToLower() select ur.User.DisplayName; foreach(string user in query.ToList() { usersString += user + ","; } usersString = usersString.Trim(' '); usersString = usersString.Trim(','); } return usersString; }如果我遗漏了某些内容，或者我在任何时候都不清楚，请发表评论，我会尽力澄清。
谢谢
更新： 我找到了一个成功搜索列的搜索框的轻微解决方法。
//$('#searchbox').keyup(function () { // $('#gridWF').data('kendoGrid').dataSource.read(); //}); $('#searchbox').keyup(function () { var q = $("#searchbox").val(); var int = parseInt(q); var grid = $("#gridWF").data("kendoGrid"); grid.dataSource.filter({ logic: "or", filters: [ { field: "Id", operator: "eq", value: int}, { field: "Name", operator: "contains", value: q}, { field: "Item", operator: "contains", value: q}, { field: "Maker", operator: "contains", value: q }, { field: "Associated", operator: "contains", value: q } ] } });但是，此代码的行为并不像我需要的那样。 这会在每行顶部的所有过滤器框中输入，这是不可接受的; 我希望使用单个过滤器的任何先前过滤保持不变。
I have a Kendo grid, and in the .ToolBar I have a search box that filters the grid based on what is typed in and overall, it is working fine.
The issue is that it is not reading/searching through particular columns (Maker & Associated) which involve the use of ICollection. I have tried a few things but I can not figure out how to write the search correctly for these columns.
I'll note that the Maker & Associated columns themselves are being populated correctly and that each of the columns' own filters also work correctly
First, this is a stripped down example of how the columns and the search box are created in the Index.cshtml
@(Html.Kendo().Grid(Model).Name("gridWF") .Columns(columns => { column.Bound (p1 => p1.Id.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Name.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Item.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Maker.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); column.Bound (p1 => p1.Associated.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150); } .Pageable() .ColumnMenu() .ToolBar(toolBar => toolBar.Template(@<text><input class='k-textbox' value="Search..." onfocus="if (this.value=='Search...') this.value='';" onblur="this.value = this.value==''?'Search...':this.value;" id='searchbox'/></text>) .DataSource(datasource => datasource.Ajax() .PageSize(15) .ServerOperation(false) .Read(r => r.Action("Read", "Workflows").Data("addSearch")) ) <script type="text/javascript"> function addSearch() { return { searchbox: $('#searchbox').val() }; } $('#searchbox').keyup(function () { $('#gridWF').data('kendoGrid').dataSource.read(); }); </script>Search section of controller
private IEnumerable<WorkflowViewModel> GetData(string searchbox = "") { var number = 0; int.TryParse (searchbox, out number); var result = (from w in Repo.GetWF() where w.Id == number || w.Name.ToLower ().Contains (searchbox.ToLower ()) || //Failed attempt w.UserRoles.Where (ur => ur.Role.Name.ToLower ().Contains (searchbox.ToLower())) != null || //Failed attempt w.UserRoles.Where (ur => ur.Role != null && wr.Role.Name.ToLower().Equals ("maker", StringComparison.InvariantCultureIgnoreCase)).Select (wr => wr.UserName).FirstOrDefault ().Contains (searchbox.ToLower()) || w.ImportProduct.Item.Name.ToLower ().Contains (searchbox.ToLower ()) || searchbox == "" select new ViewModel (w, User.Identity.Name)).ToList(); return result; }Here is the applicable code in ViewModel.cs
public class ViewModel public ViewModel(Workflow workflow, string userName = null) { Id = workflow.Id; Name = workflow.Name; Item= workflow.ImportProduct.Item.Name Maker= Workflow.GetByRoles(workflow, "maker"); Associated= Workflow.GetByRoles(workflow, "associated"); }Workflow.cs
public class Workflow { public Workflow() { UserRoles = new List<UserRole>(); } [Key] public int Id { get; set; } [Required(ErrorMessage="*")] [Display(Name="Name")] public string Name { get; set; } [Required] public int ImportId { get; set; } [ForeignKey("ImportId")] public virtual Product ImportProduct { get; set; } public ICollection<UserRole> UserRoles { get; set; } public static string GetByRoles (Workflow workflow, string role) { string userString = ""; if(workflow.UserRoles != null) { var query = from ur in workflow.UserRoles where ur.Role.Name.ToLower() == role.ToLower() select ur.User.DisplayName; foreach(string user in query.ToList() { usersString += user + ","; } usersString = usersString.Trim(' '); usersString = usersString.Trim(','); } return usersString; }If I left something out, or if I was unclear at any point, please comment and I will do my best to clarify.
Thank you
Update: I found a slight workaround for the search box which successfully searches through the columns.
//$('#searchbox').keyup(function () { // $('#gridWF').data('kendoGrid').dataSource.read(); //}); $('#searchbox').keyup(function () { var q = $("#searchbox").val(); var int = parseInt(q); var grid = $("#gridWF").data("kendoGrid"); grid.dataSource.filter({ logic: "or", filters: [ { field: "Id", operator: "eq", value: int}, { field: "Name", operator: "contains", value: q}, { field: "Item", operator: "contains", value: q}, { field: "Maker", operator: "contains", value: q }, { field: "Associated", operator: "contains", value: q } ] } });However, this code doesn't behave as I need it to. This types into all of the filter boxes at the top of each row which is not acceptable; I want any previous filtering using the individual filters to persist.
最满意答案
解决了！ 我在Controller.cs中需要的行是：
`w.UserRoles.Where (ur => ur.Role.Name.ToLower ().Contains ("maker")).Any (ur => ur.User.Name.ToLower ().Contains (searchbox.ToLower ())) ||`我尝试失败的问题是.Select是一个System.Collections.Generic.IEnumerable<bool>其中的|| 运营商不能使用。 .Any解决了这个问题，因为它确定了任何元素是否满足条件。
Solved it! The line I needed in my Controller.cs was:
`w.UserRoles.Where (ur => ur.Role.Name.ToLower ().Contains ("maker")).Any (ur => ur.User.Name.ToLower ().Contains (searchbox.ToLower ())) ||`The problem with my failed attempts was that .Select is a System.Collections.Generic.IEnumerable<bool> which the || operator doesn't work with. The .Any solves this because it determines if any element satisfies the condition.
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