C＃数据集的错误

Question

我有以下代码：

namespace Company.Project.DataProvider 
{  
    partial class MyDataSet 
    { 
     partial class MyDataTable 
     { 
     } 
    } 
} 

namespace Company.Project.DataProvider.MyDataSetTableAdapters 
{ 
    public partial class MyTableAdapter 
    { 
     public int CommandTimeout 
     { 
      set 
      { 
       for (int i = 0; (i < this.CommandCollection.Length); i = (i + 1)) 
       { 
        if ((this.CommandCollection[i] != null)) 
        { 
         this.CommandCollection[i].CommandTimeout = value; 
        } 
       } 
      } 
     } 
    } 

    protected void ObjectDataSource1_ObjectCreating 
     (object sender, ObjectDataSourceEventArgs e) 
    { 
     Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter = 
      (Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter) 
       e.ObjectInstance; 
     // Set command timeout to 2 minutes 
     adapter.CommandTimeout = 120; 
    } 
} 

当我运行上面的代码，我收到以下错误：

The type or namespace name 'Company' could not be found (are you missing a using directive or an assembly reference?)

什么是错在我的代码？

---

现在，我收到以下错误。

CS1061: 'CariPeriyot.Rapor.TEST_TumRaporlar' does not contain a definition 
for 'CommandCollection' and no extension method 'CommandCollection' 
accepting a first argument of type 'CariPeriyot.Rapor.TEST_TumRaporlar' 
could be found (are you missing a using directive or an assembly reference?) 

Source Error: 

Line 7:   set 
Line 8:   { 
Line 9:   for (int i = 0; (i < this.CommandCollection.Length); i = (i + 1)) 
Line 10:   { 
Line 11:    if ((this.CommandCollection[i] != null)) 

Answer 1

Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter引用一个类，而不是一个变量，因此分配失败。

尝试：

Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter foo = ...

Answer 2

替换下面的代码：

Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter = 
    (Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter) 
    e.ObjectInstance; 

有了：

Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter adapter = 
    (Company.Project.DataProvider.MyDataSetTableAdapters.MyTableAdapter) 
    e.ObjectInstance;