Question

所以我试图在控制器上制作表，这是我输入的代码

 DataTable table = new DataTable();
        Table.Columns.Add("Nama", typeof(string));
        Table.Columns.Add("Nama2", typeof(string));

        Table.Rows.Add("Manama", "Jeff");
        Table.Rows.Add("Damn", "Daniel");

        ViewData["Test"] = Table;



@ViewData["Test"] // when i type this it doesnt show anything on new page when i run it

Answer 1

您遇到的问题是@ViewData["Test"]隐式调用ToString()对象到DataTable对象，该对象将返回System.Data.DataTable的标准名称而不是其内容（行和列））。如果要从中创建表，则应创建HTML <table>结构，如下所示：

@using System.Data
@{
    var table = ViewData["Test"] as DataTable;
}

<table>
   <thead>
       <tr>
           @foreach (DataColumn col in table.Columns)
           {
               <th>@col.Caption</th>
           }
       </tr>
   </thead>
   <tbody>
        @foreach (DataRow row in table.Rows)
        {
            <tr>
                @foreach (var cell in row.ItemArray)
                {
                    <td>@cell.ToString()</td>
                }
            </tr>
        }
    </tbody>
</table>

或者最好将DataTable直接传递给模型：

控制器操作

DataTable table = new DataTable();
table.Columns.Add("Nama", typeof(string));
table.Columns.Add("Nama2", typeof(string));

table.Rows.Add("Manama", "Jeff");
table.Rows.Add("Damn", "Daniel");

return View(table);

查看

@using System.Data

<table>
   <thead>
       <tr>
           @foreach (DataColumn col in Model.Columns)
           {
               <th>@col.Caption</th>
           }
       </tr>
   </thead>
   <tbody>
        @foreach (DataRow row in Model.Rows)
        {
            <tr>
                @foreach (var cell in row.ItemArray)
                {
                    <td>@cell.ToString()</td>
                }
            </tr>
        }
    </tbody>
</table>

This fiddle包含在线示例，说明如何在视图页面内创建表。

调用时，ViewData不显示任何数据

1 个答案: