C# 数据库表更新无法执行上载文件上载

我有一个名为

ProductProfiles

的SQL Server数据库表，其中包含产品及其信息（每行一个产品）。在我工作的网站上，用户可以上传一个

.csv

文件，其中包含对一个或多个产品的任何或所有列的更改

我有一个函数，可以设置一个

更新

查询，用

.csv

文件中的新信息替换任何“旧”信息。我似乎没有收到任何错误（try catch没有报告任何错误，我在控制台中没有看到任何错误）

然而，每当上传带有更改的有效

.csv

文件时，这些更改永远不会进入数据库。我在SQLServerManagementStudio中测试了

更新

查询，它似乎工作正常

此函数具有

更新

查询：

private void SaveProfile(string[] curProfile)
{
    string profid = "";
    //have an update and an insert statement based on whether the profileid exists or is new
    string ProfileID = GetValue(curProfile, (int)ProfileColumns.ProfileId).Trim();
    string getProfId = "SELECT ProfileID FROM ProductProfile WHERE ProfileID = @ProfileID";
    using (SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["AbleCommerce"].ToString()))
    {
        SqlCommand cmd = new SqlCommand(getProfId, cn);
        cmd.Parameters.AddWithValue("@ProfileID", ProfileID);

        cmd.CommandType = CommandType.Text;
        cn.Open();
        using (IDataReader reader = cmd.ExecuteReader())
        {
                while (reader.Read())
           {
               profid = reader["ProfileID"].ToString();

               if (profid != "")
               {
                   try
                   {
                       string query = "UPDATE ProductProfile SET (Name = @Name, Description = @Description, SpeciesLink = @SpeciesLink, LineDraw = @LineDraw, LineDrawThumbnail = @LineDrawThumbnail, ProfileThumbnail = @ProfileThumbnail, ComponentThickness = @ComponentThickness, ComponentWidth = @ComponentWidth, FinishedThickness = @FinishedThickness, FinishedWidth = @FinishedWidth, ClassificationID = @ClassificationID, StockOfCust = @StockOrCust, ComponentFactor = @ComponentFactor, Visibility = @Visibility, Notes = @Notes) WHERE ProfileID = @profid";

                       SqlCommand cmd2 = new SqlCommand(query, cn);
                       cmd.CommandType = CommandType.Text;
                       // cn.Open();
                       cmd.Parameters.AddWithValue("@profid", profid);
                       cmd.Parameters.AddWithValue("@Name", GetValue(curProfile, (int)ProfileColumns.Name).Trim());
                       cmd.Parameters.AddWithValue("@Description", GetValue(curProfile, (int)ProfileColumns.Description).Trim());
                       cmd.Parameters.AddWithValue("@SpeciesLink", GetValue(curProfile, (int)ProfileColumns.SpeciesLink).Trim());
                       cmd.Parameters.AddWithValue("@Linedraw", GetValue(curProfile, (int)ProfileColumns.LineDraw).Trim());
                       cmd.Parameters.AddWithValue("@LineDrawThumbnail", GetValue(curProfile, (int)ProfileColumns.LineDrawThumbnail).Trim());
                       cmd.Parameters.AddWithValue("@ProfileThumbnail", GetValue(curProfile, (int)ProfileColumns.ProfileThumbnail).Trim());
                       cmd.Parameters.AddWithValue("@ComponentThickness", GetValue(curProfile, (int)ProfileColumns.ComponentThickness).Trim());
                       cmd.Parameters.AddWithValue("@ComponentWidth", GetValue(curProfile, (int)ProfileColumns.ComponentWidth).Trim());
                       cmd.Parameters.AddWithValue("@FinishedThickness", GetValue(curProfile, (int)ProfileColumns.FinishedThickness).Trim());
                       cmd.Parameters.AddWithValue("@FinishedWidth", GetValue(curProfile, (int)ProfileColumns.FinishedWidth).Trim());
                       cmd.Parameters.AddWithValue("@ClassificationID", GetValue(curProfile, (int)ProfileColumns.ClassificationID).Trim());
                       cmd.Parameters.AddWithValue("@StockOrCust", GetValue(curProfile, (int)ProfileColumns.StockOrCust).Trim());
                       cmd.Parameters.AddWithValue("@ComponentFactor", GetValue(curProfile, (int)ProfileColumns.ComponentFactor).Trim());
                       cmd.Parameters.AddWithValue("@Visibility", GetValue(curProfile, (int)ProfileColumns.Visibility).Trim());
                       cmd.Parameters.AddWithValue("@Notes", GetValue(curProfile, (int)ProfileColumns.Notes).Trim());
                       cmd.Parameters.AddWithValue("@OrderBy", GetValue(curProfile, (int)ProfileColumns.OrderBy).Trim());

                       int profileID = Convert.ToInt32(GetValue(curProfile, (int)ProfileColumns.ProfileId));
                       SaveArtchStyle(profileID, curProfile);
                       SaveAssignedItems(profileID, curProfile);
                   }
                   catch (Exception ex)
                   {
                       Response.Write("ERROR: " + ex.Message.ToString() + "<br />");
                       ErrorLabel.Text = "There was an error with the ProfileID.";
                   }
               }
            }
         }

        cmd.ExecuteNonQuery();
        cn.Close();
    }
}

试试这个

private void SaveProfile(string[] curProfile)
{
    string profid = "";
    //have an update and an insert statement based on whether the profileid exists or is new
    string ProfileID = GetValue(curProfile, (int)ProfileColumns.ProfileId).Trim();
    string getProfId = "SELECT ProfileID FROM ProductProfile WHERE ProfileID = @ProfileID";
    using (SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["AbleCommerce"].ToString()))
    {
        SqlCommand cmd = new SqlCommand(getProfId, cn);
        cmd.Parameters.AddWithValue("@ProfileID", ProfileID);

        cmd.CommandType = CommandType.Text;
        cn.Open();
        using (IDataReader reader = cmd.ExecuteReader())
        {
                while (reader.Read())
           {
               profid = reader["ProfileID"].ToString();

               if (profid != "")
               {
                   try
                   {
                       string query = "UPDATE ProductProfile SET (Name = @Name, Description = @Description, SpeciesLink = @SpeciesLink, LineDraw = @LineDraw, LineDrawThumbnail = @LineDrawThumbnail, ProfileThumbnail = @ProfileThumbnail, ComponentThickness = @ComponentThickness, ComponentWidth = @ComponentWidth, FinishedThickness = @FinishedThickness, FinishedWidth = @FinishedWidth, ClassificationID = @ClassificationID, StockOfCust = @StockOrCust, ComponentFactor = @ComponentFactor, Visibility = @Visibility, Notes = @Notes) WHERE ProfileID = @profid";

                       SqlCommand cmd2 = new SqlCommand(query, cn);
                       cmd2.CommandType = CommandType.Text;
                       cmd2.Parameters.AddWithValue("@profid", profid);
                       cmd2.Parameters.AddWithValue("@Name", GetValue(curProfile, (int)ProfileColumns.Name).Trim());
                       cmd2.Parameters.AddWithValue("@Description", GetValue(curProfile, (int)ProfileColumns.Description).Trim());
                       cmd2.Parameters.AddWithValue("@SpeciesLink", GetValue(curProfile, (int)ProfileColumns.SpeciesLink).Trim());
                       cmd2.Parameters.AddWithValue("@Linedraw", GetValue(curProfile, (int)ProfileColumns.LineDraw).Trim());
                       cmd2.Parameters.AddWithValue("@LineDrawThumbnail", GetValue(curProfile, (int)ProfileColumns.LineDrawThumbnail).Trim());
                       cmd2.Parameters.AddWithValue("@ProfileThumbnail", GetValue(curProfile, (int)ProfileColumns.ProfileThumbnail).Trim());
                       cmd2.Parameters.AddWithValue("@ComponentThickness", GetValue(curProfile, (int)ProfileColumns.ComponentThickness).Trim());
                       cmd2.Parameters.AddWithValue("@ComponentWidth", GetValue(curProfile, (int)ProfileColumns.ComponentWidth).Trim());
                       cmd2.Parameters.AddWithValue("@FinishedThickness", GetValue(curProfile, (int)ProfileColumns.FinishedThickness).Trim());
                       cmd2.Parameters.AddWithValue("@FinishedWidth", GetValue(curProfile, (int)ProfileColumns.FinishedWidth).Trim());
                       cmd2.Parameters.AddWithValue("@ClassificationID", GetValue(curProfile, (int)ProfileColumns.ClassificationID).Trim());
                       cmd2.Parameters.AddWithValue("@StockOrCust", GetValue(curProfile, (int)ProfileColumns.StockOrCust).Trim());
                       cmd2.Parameters.AddWithValue("@ComponentFactor", GetValue(curProfile, (int)ProfileColumns.ComponentFactor).Trim());
                       cmd2.Parameters.AddWithValue("@Visibility", GetValue(curProfile, (int)ProfileColumns.Visibility).Trim());
                       cmd2.Parameters.AddWithValue("@Notes", GetValue(curProfile, (int)ProfileColumns.Notes).Trim());
                       cmd2.Parameters.AddWithValue("@OrderBy", GetValue(curProfile, (int)ProfileColumns.OrderBy).Trim());

                       int profileID = Convert.ToInt32(GetValue(curProfile, (int)ProfileColumns.ProfileId));
                       SaveArtchStyle(profileID, curProfile);
                       SaveAssignedItems(profileID, curProfile);

        cmd2.ExecuteNonQuery();
                   }
                   catch (Exception ex)
                   {
                       Response.Write("ERROR: " + ex.Message.ToString() + "<br />");
                       ErrorLabel.Text = "There was an error with the ProfileID.";
                   }
               }
            }
         }
        cn.Close();
    }
} 

private void SaveProfile（字符串[]curProfile）
{
字符串profid=“”；
//根据profileid是否存在或是新的，生成update和insert语句
string ProfileID=GetValue（curProfile，（int）ProfileColumns.ProfileID.Trim（）；
string getProfId=“从ProductProfile中选择ProfileID，其中ProfileID=@ProfileID”；
使用（SqlConnection cn=new SqlConnection（ConfigurationManager.ConnectionString[“AbleCommerce”].ToString（））
{
SqlCommand cmd=新的SqlCommand（getProfId，cn）；
cmd.Parameters.AddWithValue（“@ProfileID”，ProfileID）；
cmd.CommandType=CommandType.Text；
cn.Open（）；
使用（IDataReader=cmd.ExecuteReader（））
{
while（reader.Read（））
{
profid=reader[“ProfileID”].ToString（）；
如果（profid！=“”）
{
尝试
{
string query=“更新产品配置文件集（Name=@Name，Description=@Description，SpeciesLink=@SpeciesLink，LineDraw=@LineDraw，LineDrawThumbnail=@LineDrawThumbnail，ProfileThumbnail=@ProfileThumbnail，ComponentThickness=@ComponentThickness，ComponentWidth=@FinishedThickness，FinishedWidth=@FinishedWidth，ClassificationID=@Classifica）其中ProfileID=@profid”；
SqlCommand cmd2=新的SqlCommand（查询，cn）；
cmd2.CommandType=CommandType.Text；
cmd2.Parameters.AddWithValue（“@profid”，profid）；
cmd2.Parameters.AddWithValue（“@Name”，GetValue（curProfile，（int）ProfileColumns.Name.Trim（））；
cmd2.Parameters.AddWithValue（“@Description”，GetValue（curProfile，（int）ProfileColumns.Description.Trim（））；
cmd2.Parameters.AddWithValue（“@SpeciesLink”，GetValue（curProfile，（int）ProfileColumns.SpeciesLink.Trim（））；
参数.AddWithValue（“@Linedraw”，GetValue（curProfile，（int）ProfileColumns.Linedraw.Trim（））；
参数.AddWithValue（“@LineDrawThumbnail”，GetValue（curProfile，（int）ProfileColumns.LineDrawThumbnail.Trim（））；
cmd2.Parameters.AddWithValue（“@ProfileThumbnail”，GetValue（curProfile，（int）ProfileColumns.ProfileThumbnail.Trim（））；
cmd2.Parameters.AddWithValue（“@ComponentThickness”，GetValue（curProfile，（int）ProfileColumns.ComponentThickness.Trim（））；
cmd2.Parameters.AddWithValue（“@ComponentWidth”，GetValue（curProfile，（int）ProfileColumns.ComponentWidth.Trim（））；
cmd2.Parameters.AddWithValue（“@FinishedThickness”，GetValue（curProfile，（int）ProfileColumns.FinishedThickness.Trim（））；
cmd2.Parameters.AddWithValue（“@FinishedWidth”，GetValue（curProfile，（int）ProfileColumns.FinishedWidth.Trim（））；
cmd2.Parameters.AddWithValue（“@ClassificationID”，GetValue（curProfile，（int）ProfileColumns.ClassificationID.Trim（））；
参数.AddWithValue（“@StockOrCust”，GetValue（curProfile，（int）ProfileColumns.StockOrCust.Trim（））；
cmd2.Parameters.AddWithValue（“@ComponentFactor”，GetValue（curProfile，（int）ProfileColumns.ComponentFactor.Trim（））；
cmd2.Parameters.AddWithValue（“@Visibility”，GetValue（curProfile，（int）ProfileColumns.Visibility.Trim（））；
cmd2.Parameters.AddWithValue（“@Notes”，GetValue（curProfile，（int）ProfileColumns.Notes.Trim（））；
cmd2.Parameters.AddWithValue（“@OrderBy”，GetValue（curProfile，（int）ProfileColumns.OrderBy.Trim（））；
int profileID=Convert.ToInt32（GetValue（curProfile，（int）ProfileColumns.profileID））；
SaveArtchStyle（profileID，curProfile）；
SaveAssignedItems（profileID，curProfile）；
cmd2.ExecuteNonQuery（）；
}
捕获（例外情况除外）
{
Response.Write（“错误：+ex.Message.ToString（）+”
）；
ErrorLabel.Text=“ProfileID出现错误。”；
}
}
}
}
cn.Close（）；
}
} 

问题标题中提到的异常在哪里出现？发生这种情况时，运行时对象的状态如何？是否对此进行过调试？当使用调试器时，调试器在哪里失败？是否注意到update语句中没有使用OrderBy参数？您正在混合两个SQLCOMMAND。您可以将一个参数分配到

cmd

来运行select查询（为什么？），然后将SqlCommand update查询分配给

cmd2

。但是，这些参数会添加到

cmd

中，然后在循环外部调用本应使用的cmd上的

ExecuteNonQuery

<

private void SaveProfile(string[] curProfile)
{
    string profid = "";
    //have an update and an insert statement based on whether the profileid exists or is new
    string ProfileID = GetValue(curProfile, (int)ProfileColumns.ProfileId).Trim();
    string getProfId = "SELECT ProfileID FROM ProductProfile WHERE ProfileID = @ProfileID";
    using (SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["AbleCommerce"].ToString()))
    {
        SqlCommand cmd = new SqlCommand(getProfId, cn);
        cmd.Parameters.AddWithValue("@ProfileID", ProfileID);

        cmd.CommandType = CommandType.Text;
        cn.Open();
        using (IDataReader reader = cmd.ExecuteReader())
        {
                while (reader.Read())
           {
               profid = reader["ProfileID"].ToString();

               if (profid != "")
               {
                   try
                   {
                       string query = "UPDATE ProductProfile SET (Name = @Name, Description = @Description, SpeciesLink = @SpeciesLink, LineDraw = @LineDraw, LineDrawThumbnail = @LineDrawThumbnail, ProfileThumbnail = @ProfileThumbnail, ComponentThickness = @ComponentThickness, ComponentWidth = @ComponentWidth, FinishedThickness = @FinishedThickness, FinishedWidth = @FinishedWidth, ClassificationID = @ClassificationID, StockOfCust = @StockOrCust, ComponentFactor = @ComponentFactor, Visibility = @Visibility, Notes = @Notes) WHERE ProfileID = @profid";

                       SqlCommand cmd2 = new SqlCommand(query, cn);
                       cmd2.CommandType = CommandType.Text;
                       cmd2.Parameters.AddWithValue("@profid", profid);
                       cmd2.Parameters.AddWithValue("@Name", GetValue(curProfile, (int)ProfileColumns.Name).Trim());
                       cmd2.Parameters.AddWithValue("@Description", GetValue(curProfile, (int)ProfileColumns.Description).Trim());
                       cmd2.Parameters.AddWithValue("@SpeciesLink", GetValue(curProfile, (int)ProfileColumns.SpeciesLink).Trim());
                       cmd2.Parameters.AddWithValue("@Linedraw", GetValue(curProfile, (int)ProfileColumns.LineDraw).Trim());
                       cmd2.Parameters.AddWithValue("@LineDrawThumbnail", GetValue(curProfile, (int)ProfileColumns.LineDrawThumbnail).Trim());
                       cmd2.Parameters.AddWithValue("@ProfileThumbnail", GetValue(curProfile, (int)ProfileColumns.ProfileThumbnail).Trim());
                       cmd2.Parameters.AddWithValue("@ComponentThickness", GetValue(curProfile, (int)ProfileColumns.ComponentThickness).Trim());
                       cmd2.Parameters.AddWithValue("@ComponentWidth", GetValue(curProfile, (int)ProfileColumns.ComponentWidth).Trim());
                       cmd2.Parameters.AddWithValue("@FinishedThickness", GetValue(curProfile, (int)ProfileColumns.FinishedThickness).Trim());
                       cmd2.Parameters.AddWithValue("@FinishedWidth", GetValue(curProfile, (int)ProfileColumns.FinishedWidth).Trim());
                       cmd2.Parameters.AddWithValue("@ClassificationID", GetValue(curProfile, (int)ProfileColumns.ClassificationID).Trim());
                       cmd2.Parameters.AddWithValue("@StockOrCust", GetValue(curProfile, (int)ProfileColumns.StockOrCust).Trim());
                       cmd2.Parameters.AddWithValue("@ComponentFactor", GetValue(curProfile, (int)ProfileColumns.ComponentFactor).Trim());
                       cmd2.Parameters.AddWithValue("@Visibility", GetValue(curProfile, (int)ProfileColumns.Visibility).Trim());
                       cmd2.Parameters.AddWithValue("@Notes", GetValue(curProfile, (int)ProfileColumns.Notes).Trim());
                       cmd2.Parameters.AddWithValue("@OrderBy", GetValue(curProfile, (int)ProfileColumns.OrderBy).Trim());

                       int profileID = Convert.ToInt32(GetValue(curProfile, (int)ProfileColumns.ProfileId));
                       SaveArtchStyle(profileID, curProfile);
                       SaveAssignedItems(profileID, curProfile);

        cmd2.ExecuteNonQuery();
                   }
                   catch (Exception ex)
                   {
                       Response.Write("ERROR: " + ex.Message.ToString() + "<br />");
                       ErrorLabel.Text = "There was an error with the ProfileID.";
                   }
               }
            }
         }
        cn.Close();
    }
}