C#，循环遍历数据集并显示数据集列中的每条记录

Question

In C#, I'm trying to loop through my dataset to show data from each row from a specific column. I want the get each date under the column name "TaskStart" and display it on a report, but its just shows the date from the first row for all rows can anybody help?

 foreach (DataTable table in ds.Tables)
 {

     foreach (DataRow dr in table.Rows)
     {
         DateTime TaskStart = DateTime.Parse(
             ds.Tables[0].Rows[0]["TaskStart"].ToString());
         TaskStart.ToString("dd-MMMM-yyyy");
         rpt.SetParameterValue("TaskStartDate", TaskStart);
     }
 }

Answer 1

I believe you intended it more this way:

foreach (DataTable table in ds.Tables)
{
    foreach (DataRow dr in table.Rows)
    {
        DateTime TaskStart = DateTime.Parse(dr["TaskStart"].ToString());
        TaskStart.ToString("dd-MMMM-yyyy");
        rpt.SetParameterValue("TaskStartDate", TaskStart);
    }
}

You always accessed your first row in your dataset.

Answer 2

DateTime TaskStart = DateTime.Parse(dr["TaskStart"].ToString());

Answer 3

foreach (DataRow dr in ds.Tables[0].Rows)
{
    //your code here
}

Answer 4

foreach (DataTable table in ds.Tables)
{
    foreach (DataRow dr in table.Rows)
    {
        var ParentId=dr["ParentId"].ToString();
    }
}

Answer 5

        foreach (DataRow table in ds.Tables[0].Rows)
        {
                int ForType = Convert.ToInt32(table["Fortype"].ToString());
                ds.Tables[0].DefaultView.RowFilter = "ForType ='" + ForType +"'";
                rbtnQuestion.DataSource = ds.Tables[0].DefaultView;
                rbtnQuestion.DataBind();

        }