[Solved] Interpret embed databound expressions outside of the ClientRowTemplate

[Jeffrey]

Below is a simplified version of a view I am working with.  What I want to do is shown in the comments about half way down:

//I want back what the pid is, such as: filepath = "App_Data/123456789/";
//but comes back as: filepath = "App_Data/<#= pid #>/"
//Html.Encode(filepath) does display correct, but I need to find each file here
//for each id, so that I may find all file for that individual

<% Html.Telerik().Grid<UCHonorsProg.Models.usr_StudentInfo_Result>()
            .Name("Students")
            .DataBinding(dataBinding => dataBinding.Ajax()
                    .Select("StudentProgGrid", "Home"))
            .Columns(c => c.Bound(o => o.FullName).Title("Full Name"))
            .DetailView(detailView => detailView.ClientTemplate(
                Html.Telerik().TabStrip().Name("<#= StudentID #>").Items(item =>
                                 {
                        item.Add().Text("Required Courses").Content(
                        Html.Telerik().Grid<UCHonorsProg.Models.usr_Courses_Result>()
                                 .Name("Required_<#= StudentID #>")
                                 .DataKeys(keys => keys.Add(m => m.pid))
                                 .DataBinding(dataBinding => dataBinding.Ajax()
                                 .Select("Courses", "Home", new { pId = "<#= pid #>" }))
                                 .Columns(columns => columns.Bound(o => o.primkey))
                                 .ToHtmlString()
                        );
                        %>
                        <%  var x = "<#= pid #>";
                            var filepath = "App_Data/" + x + "/";
                            //I want back what the pid is, such as: filepath = "App_Data/123456789/";
                            //but comes back as: filepath = "App_Data/<#= pid #>/"
                            //Html.Encode(filepath) does display correct, but I need to find each file here for each id
                       %>
                        <%  item.Add().Text("Projects").Content(
                            Html.Telerik().Grid<UCHonorsProg.Models.usr_Projects_Result>()
                                .Name("Projects_<#= StudentID #>")
                                .DataKeys(keys => keys.Add(m => m.primkey))
                                .Columns(columns => columns.Bound(o => o.primkey))
                            .ClientRowTemplate(grid =>
                                        "<div class=\"ProjectGrid\"><table><tr><th>Filename</th></tr>" +
                                            "<tr><td>" + Html.Encode(filepath) + "</td></tr></table></div>"
                                        )
                                        .DataBinding(dataBinding => dataBinding.Ajax()
                                .Select("Projects", "Home", new { pId = "<#= pid #>" })
                                )
                            .ToHtmlString()
                            );
                            }).SelectedIndex(0).ToHtmlString())).Render();
    %>

[Daniel]

Hello Jeffrey,

I am not sure if I understand correctly the exact scenario. Could you provide more information about how do you want to use the filepath in the row template?

Greetings,
Daniel
the Telerik team

[Jeffrey]

Thanks for looking at this.

I need each pid to come through, since each individual within the grid has their own folder.  I need the filepath to come through as:
(example where the pid = 123456789 ---> "App_Data/123456789/")

var mypid = "<#= pid #>";
var filepath = "App_Data/" + mypid + "/";
//so that
//filepath = "App_Data/123456789/";
//not, as it comes through now as:
//filepath = "App_Data/<#= pid #>/";

this will go within the code block (it works if I hard code it as: filepath = "App_Data/123456789/";):
    var mypid = "<#= pid #>";
    var path = Path.Combine(Server.MapPath("~/App_Data"), mypid);
    var filepath = "App_Data/" + mypid + "/";
    foreach (var fileitem in Directory.GetFiles(path).Select(file => new FileInfo(file)))
    {
        filename = Path.GetFileName(fileitem.Name);
        filesize = fileitem.Length >= 1024 ? fileitem.Length / 1024 + " kilobytes" : fileitem.Length + " bytes";
        if (filename != null) path2 = Path.Combine(filepath, filename);
    }

This will then drop these Files in the ClientRowTemplate see highlighted area of screenshot

[Daniel]

Hello again Jeffrey,

The "pid" parameter won't be evaluated if it is not a property of the Model of the Grid that uses the row template because it will be in different context. Also in Ajax binding, the data is loaded on the client so the files for a particular ID can't be found in the detail template which is serialized and loaded on demand. This can be achieved when using Server Details. In Ajax binding you could either include the file paths in the Detail Grid model or call function inside the detail which to make an Ajax request for the correct file paths and insert them in the row in the success callback.

Kind regards,
Daniel
the Telerik team