C# asp.net c中的数据集排序#_C#_Asp.net_Dataset

C# asp.net c中的数据集排序#

c# asp.net

C# asp.net c中的数据集排序#,c#,asp.net,dataset,C#,Asp.net,Dataset,我试图对数据进行排序，但是当我从一个页面跳转到另一个页面时，名称不会被排序 return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount); /// <summary> /// Get All the students from that Bureau. /// </s

我试图对数据进行排序，但是当我从一个页面跳转到另一个页面时，名称不会被排序

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

}试试这个：

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
ds.Tables[0].DefaultView.Sort = "grouptitle asc";
ds.Tables[0] = ds.Tables[0].DefaultView.ToTable();
return ds;

更新

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

您只需执行以下操作：

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

public DataSet GetAllStudentGroupByBureau(int ? GroupId, int ? BureauID) 
{
    DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);

    ds.Tables[0].DefaultView.Sort = "grouptitle asc";        
    DataTable dt = ds.Tables[0].DefaultView.ToTable();
    ds.Tables[0].Rows.Clear();
    foreach (DataRow row in dt.Rows)
       ds.Tables[0].Rows.Add(row.ItemArray);

    return ds;
}

试试这个：

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
ds.Tables[0].DefaultView.Sort = "grouptitle asc";
ds.Tables[0] = ds.Tables[0].DefaultView.ToTable();
return ds;

更新

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

您只需执行以下操作：

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

public DataSet GetAllStudentGroupByBureau(int ? GroupId, int ? BureauID) 
{
    DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);

    ds.Tables[0].DefaultView.Sort = "grouptitle asc";        
    DataTable dt = ds.Tables[0].DefaultView.ToTable();
    ds.Tables[0].Rows.Clear();
    foreach (DataRow row in dt.Rows)
       ds.Tables[0].Rows.Add(row.ItemArray);

    return ds;
}

你可以试试这个：

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

    //convert DataSet table to DataView  
    DataView dv = ds.Tables[0].DefaultView; 

    //apply the sort   
    dv.Sort = "grouptitle ASC"; 

    //save back into our dataset  
    ds.Tables[0] = dv.ToTable();

你可以试试这个：

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

    //convert DataSet table to DataView  
    DataView dv = ds.Tables[0].DefaultView; 

    //apply the sort   
    dv.Sort = "grouptitle ASC"; 

    //save back into our dataset  
    ds.Tables[0] = dv.ToTable();

您可以尝试以下方法。请记住，不能将值赋给ds.Table[]。因此，您需要创建一个新的数据表，并将其添加到新的或现有的数据集中

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

    ds.Tables[0].DefaultView.Sort = "columnName ASC";

    DataTable dt = ds.Tables[0].DefaultView.ToTable();

您可以尝试以下方法。请记住，不能将值赋给ds.Table[]。因此，您需要创建一个新的数据表，并将其添加到新的或现有的数据集中

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

    ds.Tables[0].DefaultView.Sort = "columnName ASC";

    DataTable dt = ds.Tables[0].DefaultView.ToTable();

DataView dv=ds.Tables[0].DefaultView

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

dv.Sort = "grouptitle ASC"; 

ds = dv.ToTable();

试试这些

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

默认值在ds.table[0]中，无需对其进行测量

DataView dv=ds.Tables[0]。默认视图

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

dv.Sort = "grouptitle ASC"; 

ds = dv.ToTable();

试试这些

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }

默认情况下，它出现在ds.表[0]中，无需测量它的尺寸。这里有问题吗？那么它在第一页上的排序正确吗？这里有问题吗？那么它在第一页上的排序正确吗？ds.表[0]产生错误。属性或索引system.DataTablesCollection。无法将此[int]分配给is is read onlyds。表[0]生成错误。属性或索引system.DataTablesCollection。无法将此[int]分配给is is read onlyds。表[0]生成错误。属性或索引系统。DataTablesCollection。此[int]无法分配给is为只读。我现在收到此错误错误6“BusinessObjects.StudentGroupManager”未实现接口成员“BusinessObjects.Contracts.IStudentGroupManager.GetAllStudentGroupByBureau（int？，int？）”BusinessObjects.StudentGroupManager.GetAllStudentGroupByBureau（int？，int？）无法实现“BusinessObjects.Contracts.IsStudentGroupManager.GetAllStudentGroupByBureau（int？），因为它没有匹配的返回类型“System.Data.DataSet”。C:\workspace\DOP.IT.Training\Development\MS\BusinessObjects\StudentGroupManager.cs 11 18 BusinessObjects数据表dt中的第二个“=”给了我一个无效的表达式项和ds。正在给我一个“预期的”@user2208126：对不起，那是一个打字错误。我已经更新了代码。试试看！表[0]产生错误。属性或索引系统。DataTablesCollection。此[int]无法分配给is为只读。我现在收到此错误错误6“BusinessObjects.StudentGroupManager”未实现接口成员“BusinessObjects.Contracts.IStudentGroupManager.GetAllStudentGroupByBureau（int？，int？）”BusinessObjects.StudentGroupManager.GetAllStudentGroupByBureau（int？，int？）无法实现“BusinessObjects.Contracts.IsStudentGroupManager.GetAllStudentGroupByBureau（int？），因为它没有匹配的返回类型“System.Data.DataSet”。C:\workspace\DOP.IT.Training\Development\MS\BusinessObjects\StudentGroupManager.cs 11 18 BusinessObjects数据表dt中的第二个“=”给了我一个无效的表达式项和ds。正在给我一个“预期的”@user2208126：对不起，那是一个打字错误。我已经更新了代码。试试看！=正在给我一个无效的表达式术语我现在遇到此错误错误错误6“BusinessObjects.StudentGroupManager”未实现接口成员“BusinessObjects.Contracts.IStudentGroupManager.GetAllStudentGroupByBureau（int？，int？）”BusinessObjects.StudentGroupManager.GetAllStudentGroupByBureau（int？，int？）无法实现“BusinessObjects.Contracts.IsStudentGroupManager.GetAllStudentGroupByBureau（int？），因为它没有匹配的返回类型“System.Data.DataSet”。C:\workspace\DOP.IT.Training\Development\MS\BusinessObjects\StudentGroupManager。‌cs 11 18 BusinessObjectsI能够编译上述代码，没有任何错误。通过查看上面的代码，似乎还有其他原因导致了这个问题。我把这个放进去了，但是我找不到columnName。公共数据集GetAllStudentGroupByBureau（int？GroupId，int？BureauID）{DataSet ds=new dao_StudentGroup（）.GetDataSet（null，null，BureauID）；ds.Tables[0]。DefaultView.Sort=“columnName ASC”；DataTable dt=ds.Tables[0]。DefaultView.ToTable（）；return ds；}显然columnName表示要排序的字段名称。您需要将其更改为原始列名，它仅用于参考/示例=正在给我一个无效的表达式术语我现在收到此错误错误6“BusinessObjects.StudentGroupManager”未实现接口成员“BusinessObjects.Contracts.IStudentGroupManager.GetAllStudentGroupByBureau（int？、int？）”BusinessObjects.StudentGroupManager.GetAllStudentGroupByBureau（int？，int？）无法实现“BusinessObjects.Contracts.IsStudentGroupManager.GetAllStudentGroupByBureau（int？），因为它没有匹配的返回类型“System.Data.DataSet”。C:\workspace\DOP.IT.Training\Development\MS\BusinessObjects\StudentGroupManager。‌cs 11 18 BusinessObjectsI能够编译上述代码，没有任何错误。通过查看上面的代码，似乎还有其他原因导致了这个问题。我把这个放进去了，但是我找不到columnName。公共数据集GetAllStudentGroupByBureau（int？GroupId，int？BureauID）{DataSet ds=new dao_StudentGroup（）.GetDataSet（null，null，BureauID）；ds.Tables[0]。DefaultView.Sort=“columnName ASC”；DataTable dt=ds.Tables[0]。DefaultView.ToTable（）；return ds；}显然columnName表示要排序的字段名称。您需要将其更改为原始列名，它仅用于参考/示例

return new dao_StudentGroupStudents().GetNewStudentbyGroup(bureauId, search, groupId, currentPage, pageSize, out totalCount);

    /// <summary>
    /// Get All the students from that Bureau.
    /// </summary>

    public DataSet GetAllStudentGroupByBureau(int? GroupId, int? BureauID)
    {
        DataSet ds = new dao_StudentGroup().GetDataSet(null, null, BureauID);
        ds.Tables[0].DefaultView.Sort = "grouptitle asc";
        return ds;
    }