我正在尝试将excel文件导入我的网站，然后将其内容保存在sql server中 我的问题与sqlbulkcopy在填充数据库时，某些列填充了错误的值，这是NULL！而列有一个非空的双值！
这是代码：
void ImporttoDatatable()
{
try
{
if (FileUpload3.HasFile)
{
string FileName = FileUpload3.FileName;
string path = Path.Combine(Server.MapPath("~/ImportDocument"), Guid.NewGuid().ToString() + Path.GetExtension(FileUpload3.PostedFile.FileName));
FileUpload3.PostedFile.SaveAs(path);
using (OleDbConnection OleDbcon = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + "; Extended Properties = \"Excel 8.0;HDR=Yes;IMEX=2\" "))
{
conn.Open();
OleDbcon.Open();
OleDbCommand command = new OleDbCommand("Select [IdOftable], [Time],[InstrumentLeftHand],[LeftSwitch],[LeftKnob],[ForceFeedbackLeftHand],[CumTimeLeftForceOverThreshold],[CumTimeLeftForceOver2xThreshold],[TranslationLeft_x],[TranslationLeft_y],[TranslationLeft_z],[quatLeft_x],[quatLeft_y],[quatLeft_z],[quatLeft_w],[InstrumentRightHand],[RightSwitch],[RightKnob],[ForceFeedbackRightHand],[CumTimeRightForceOverThreshold],[CumTimeRightForceOver2xThreshold],[TranslationRight_x],[TranslationRight_y],[TranslationRight_z],[quatRight_x],[quatRight_y],[quatRight_z],[quatRight_w],[BloodEmittedFrame],[BloodCurrentFrame],[TotalBloodEmitted],[TotalWhiteFibreCut],[TotalRedFibreCut],[Volume0_Brain],[Volume1_Tumor],[Volume2_Tumor] from [Sheet1$]", OleDbcon);
//OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(command);
DbDataReader dr = command.ExecuteReader();
using (SqlBulkCopy bulkCopy = new SqlBulkCopy(conn))
{
bulkCopy.DestinationTableName = "MyExcel";
try
{
bulkCopy.BulkCopyTimeout = 400;
bulkCopy.WriteToServer(dr);
bulkCopy.BatchSize = 16000;
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
finally
{
dr.Close();
}
OleDbcon.Close();
bulkCopy.Close();
}
}
} lblmessage.Text = "The File Succssesfully Imported ";
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
}
这是sql表定义：
CREATE TABLE [dbo].[MyExcel] (
[IdOftable] NVARCHAR (50) NOT NULL,
[Time] FLOAT (53) NULL,
[InstrumentLeftHand] NVARCHAR (50) NULL,
[LeftSwitch] FLOAT (53) NULL,
[LeftKnob] FLOAT (53) NULL,
[ForceFeedbackLeftHand] FLOAT (53) NULL,
[CumTimeLeftForceOverThreshold] FLOAT (53) NULL,
[CumTimeLeftForceOver2xThreshold] FLOAT (53) NULL,
[TranslationLeft_x] FLOAT (53) NULL,
[TranslationLeft_y] FLOAT (53) NULL,
[TranslationLeft_z] FLOAT (53) NULL,
[quatLeft_x] FLOAT (53) NULL,
[quatLeft_y] FLOAT (53) NULL,
[quatLeft_z] FLOAT (53) NULL,
[quatLeft_w] FLOAT (53) NULL,
[InstrumentRightHand] NVARCHAR (50) NULL,
[RightSwitch] FLOAT (53) NULL,
[RightKnob] FLOAT (53) NULL,
[ForceFeedbackRightHand] FLOAT (53) NULL,
[CumTimeRightForceOverThreshold] FLOAT (53) NULL,
[CumTimeRightForceOver2xThreshold] FLOAT (53) NULL,
[TranslationRight_x] FLOAT (53) NULL,
[TranslationRight_y] FLOAT (53) NULL,
[TranslationRight_z] FLOAT (53) NULL,
[quatRight_x] FLOAT (53) NULL,
[quatRight_y] FLOAT (53) NULL,
[quatRight_z] FLOAT (53) NULL,
[quatRight_w] FLOAT (53) NULL,
[BloodEmittedFrame] NVARCHAR (50) NULL,
[BloodCurrentFrame] FLOAT (53) NULL,
[TotalBloodEmitted] FLOAT (53) NULL,
[TotalWhiteFibreCut] FLOAT (53) NULL,
[TotalRedFibreCut] FLOAT (53) NULL,
[Volume0_Brain] FLOAT (53) NULL,
[Volume1_Tumor] FLOAT (53) NULL,
[Volume2_Tumor ] FLOAT (53) NULL,
PRIMARY KEY CLUSTERED ([IdOftable] ASC)
);
当我运行代码时没有异常，但是当我检查服务器内部的数据时，对于某些值，它们的空值为null =（
我使用visual studio express 2012 for web。该怎么做才能纠正它？
谢谢
答案 0 :(得分：0)
谢谢大家的帮助 当我使用 @GarethD 表示
时，它最终与我合作如果有人需要，我会发布经过编辑的代码：
string name = (string)(Session["LoginUserName"]);
if(FileUpload3.FileName == null ){
lblmessage.Text = "Choose the file First then click import ";
string display = " Choose the file First then click import ";
ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + display + "');", true);
}
else
{
string path = Path.Combine(Server.MapPath("~/ImportDocument"), Guid.NewGuid().ToString() + name + Path.GetExtension(FileUpload3.PostedFile.FileName));
FileUpload3.PostedFile.SaveAs(path);
OleDbConnection dbConnection = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + "; Extended Properties = \"Excel 8.0;HDR=Yes;IMEX=2\" ");
dbConnection.Open();
try
{
// Get the name of the first worksheet:
DataTable dbSchema = dbConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if (dbSchema == null || dbSchema.Rows.Count < 1)
{
throw new Exception("Error: Could not determine the name of the first worksheet.");
}
string firstSheetName = dbSchema.Rows[0]["TABLE_NAME"].ToString();
// Now we have the table name; proceed as before:
OleDbCommand dbCommand = new OleDbCommand("Select [IdOftable], [Time],[InstrumentLeftHand],[LeftSwitch],[LeftKnob],[ForceFeedbackLeftHand],[CumTimeLeftForceOverThreshold],[CumTimeLeftForceOver2xThreshold],[TranslationLeft_x],[TranslationLeft_y],[TranslationLeft_z],[quatLeft_x],[quatLeft_y],[quatLeft_z],[quatLeft_w],[InstrumentRightHand],[RightSwitch],[RightKnob],[ForceFeedbackRightHand],[CumTimeRightForceOverThreshold],[CumTimeRightForceOver2xThreshold],[TranslationRight_x],[TranslationRight_y],[TranslationRight_z],[quatRight_x],[quatRight_y],[quatRight_z],[quatRight_w],[BloodEmittedFrame],[BloodCurrentFrame],[TotalBloodEmitted],[TotalWhiteFibreCut],[TotalRedFibreCut],[Volume0_Brain],[Volume1_Tumor],[Volume2_Tumor] from [" + firstSheetName + "]", dbConnection);
OleDbDataReader dbReader = dbCommand.ExecuteReader();
using (SqlBulkCopy bulkCopy = new SqlBulkCopy(conn))
{
bulkCopy.DestinationTableName = "MyExcel";
try
{
conn.Open();
bulkCopy.BulkCopyTimeout = 400;
bulkCopy.WriteToServer(dbReader);
bulkCopy.BatchSize = 16000;
conn.Close();
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
finally
{
bulkCopy.Close();
dbReader.Close();
//lblmessage.Text = " data successfully imported ";
// Response.Write(@"<script language=""javascript"">alert('Details saved successfully')</script>");
string display = " Data Duccessfully Imported Now Click On Calculate the result to calculate your results taking in your account The calculation will take a while , please wait ";
ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + display + "');", true);
}
}
}
finally
{
dbConnection.Close();
}
}