这是表结构:
以下是代码:
protected void Write_CSV_From_Recordset2(SqlDataReader oDataReader)
{
StringBuilder builder = new StringBuilder();
List<string> columnNames = new List<string>();
List<string> rows = new List<string>();
for (int i = 0; i < oDataReader.FieldCount; i++)
{
string tmpColumnName = oDataReader.GetName(i);
columnNames.Add(tmpColumnName);
}
builder.Append(string.Join(",", columnNames.ToArray())).Append("\n");
List<string> currentRow = new List<string>();
while (oDataReader.Read())
{
////base.WriteLog(oDataReader.FieldCount + "fieldcount");
for (int i = 0; i < oDataReader.FieldCount; i++)
{
object item = oDataReader[i];
currentRow.Add(item.ToString());
}
}
//builder.Append(string.Join("\n", rows.ToArray())).Append("\n");
rows.Add(string.Join(",", currentRow.ToArray()));
builder.Append(string.Join(",", rows.ToArray())).Append("\n");
Response.Clear();
Response.ContentType = "text/csv";
Response.AddHeader("Content-Disposition", "attachment;filename=pretestscore.csv");
Response.Write(builder.ToString());
Response.End();
}
问题是当输出开始返回时,
while (oDataReader.Read())
函数返回的值就像
一样281063,70,7091,85,TEST,200,test,NULL
如何从表中获取实际数据?
我的代码中的错误在哪里?
有什么建议吗?
答案 0 :(得分:1)
protected void Write_CSV_From_Recordset2(SqlDataReader oDataReader)
{
string strCSV = string.Empty;
for (int i = 0; i < oDataReader.FieldCount; i++)
{
string tmpColumnName = oDataReader.GetName(i);
strCSV += tmpColumnName + ',';
}
strCSV += "\r\n";
while (oDataReader.Read())
{
for (int i = 0; i < oDataReader.FieldCount; i++)
{
object item = oDataReader[i];
strCSV += item.ToString().Replace(",", ";") + ',';
}
strCSV += "\r\n";
}
//Download the CSV file.
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment;filename=pretestscore.csv");
Response.Charset = "";
Response.ContentType = "application/text";
Response.Output.Write(strCSV);
Response.Flush();
Response.End();
}
答案 1 :(得分:0)
您可以使用以for
循环或while
循环分隔的逗号直接编写代码。
您可以参考此代码,您将获得想法
string s;
while (reader.Read())
{
if(!String.IsNullOrEmpty(s)){
s += ", ";
}
s += reader["name"].ToString();
}