Question

我可以在SQL Server表列数据类型为nvarchar(MAX)时保存这些信息，但我需要使用其他数据类型保存数据。

这是我的数据库，我需要将数据保存到表中，但我无法使用我的代码执行此操作，但我可以使用nvarchar(MAX)数据格式保存到数据库

    protected void btnSaave_Click(object sender, EventArgs e)
    {
        int rowIndex = 0;
        StringCollection sc = new StringCollection();
        if (ViewState["CurrentData"] != null)
        {
            DataTable dtCurrentTable = (DataTable)ViewState["CurrentData"];
            DataRow drCurrentRow = null;
            if (dtCurrentTable.Rows.Count > 0)
            {
                for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
                {
                    var dtDealerCode = txtIDealerCode.Text;
                    var dtInvoiceNo = txtInvoiceNumber.Text;
                    var dtInvoiceDate = txtInvoiceDate.Text;
                    var dtItemIdentityCode = (Label)GridView1.Rows[rowIndex].Cells[1].FindControl("ItemCode");
                    var dtPurchasingPrice = (Label)GridView1.Rows[rowIndex].Cells[3].FindControl("UnitPrice");
                    var dtDiscountRate = txtDiscount.Text;
                    var dtDiscount = txtProductDiscount.Text;
                    var dtIssueMode = ddlIssueMode.SelectedValue;
                    var dtQty = (Label)GridView1.Rows[rowIndex].Cells[6].FindControl("Quantity");
                    var dtTotal = (Label)GridView1.FooterRow.FindControl("GetTotal");
                    var dtExpireDate = (Label)GridView1.Rows[rowIndex].Cells[5].FindControl("ExpiaryDate");
                    var dtBatchNumber = (Label)GridView1.Rows[rowIndex].Cells[4].FindControl("Batch");
                    var dtUploadedStatus = txtInvoiceDate.Text;
                    var dtInsertedDate = "1";
                    var dtUploadedDate = txtInvoiceDate.Text;
                    var dtForce = txtForce.Text;
                    var dtPrinciple = txtPrinciple.Text;
                    var NewTotal = (Label)GridView1.FooterRow.FindControl("GetQuantity");
                    // (Label)GridView1.Rows[rowIndex].Cells[7].FindControl("Total");
                    //(Label)GridView1.Rows[rowIndex].Cells[2].FindControl("Product")
                    sc.Add(dtDealerCode + "," + dtInvoiceNo + "," + dtInvoiceDate + "," + dtItemIdentityCode.Text + "," + dtPurchasingPrice.Text + "," + dtDiscountRate + "," + dtDiscount + "," + dtIssueMode + "," + dtQty.Text + "," + dtTotal.Text + "," + dtExpireDate + "," + dtBatchNumber.Text + "," + dtUploadedStatus + "," + dtInsertedDate + "," + dtUploadedDate + "," + dtForce + "," + dtPrinciple + "," + dtPrinciple + "," + NewTotal.Text);
                    rowIndex++;
                }

                InsertRec(sc);
            }
        }
    }

我正在使用此部分保存到databaseas，

我需要将数据保存到表中，但我无法使用我的代码执行此操作，但我可以使用nvarchar(MAX)数据格式保存到数据库

private void InsertRec(StringCollection sc)
    {
        var conn = new SqlConnection(GetConnectionString());
        var sb = new StringBuilder(string.Empty);
        var splitItems = (string[])null;
        foreach (string item in sc)
        {
            const string sqlStatement =
                "INSERT INTO DEL_PurchasesLines1 (DealerCode,InvoiceNo,InvoiceDate,ItemIdentityCode,PurchasingPrice,DiscountRate,Discount,IssueMode,Qty,Total,ExpireDate,BatchNumber,UploadedStatus,InsertedDate,UploadedDate,Force,Principle,NewTotal) VALUES";

            if (item.Contains(","))
            {
                splitItems = item.Split(",".ToCharArray());
                sb.AppendFormat("{0}('{1}','{2}','{3}','{4}','{5}','{6}','{7}','{8}','{9}','{10}','{11}','{12}','{13}','{14}','{15}','{16}','{17}','{18}'); ", sqlStatement, splitItems[0], splitItems[1], splitItems[2], splitItems[3], splitItems[4], splitItems[5], splitItems[6], splitItems[7], splitItems[8], splitItems[9], splitItems[10], splitItems[11], splitItems[12], splitItems[13], splitItems[14], splitItems[15], splitItems[16], splitItems[17]);
            }
        }

        try
        {
            conn.Open();
            SqlCommand cmd = new SqlCommand(sb.ToString(), conn) { CommandType = CommandType.Text };
            cmd.ExecuteNonQuery();

            Page.ClientScript.RegisterClientScriptBlock(typeof(Page), "Script", "alert('Records Successfuly Saved!');", true);

        }
        catch (System.Data.SqlClient.SqlException ex)
        {
            string msg = "Insert Error:";
            msg += ex.Message;
            throw new Exception(msg);
        }
        finally
        {
            conn.Close();
        }
    }

Answer 1

将ur nvarchar值传递给此方法..

public static DateTime DateParse(string date)
        {
            date = date.Trim();
            if (!string.IsNullOrEmpty(date))
            return DateTime.Parse(date, new System.Globalization.CultureInfo("en-GB"));
            return new DateTime();
        }

Answer 2

您可以在从Datatable获取数据时应用convert.ToDateTime，但我觉得您不需要执行所有这些拆分功能来获取Insert查询的值，您可以直接将stringCollection sc字符串应用于插入查询中的值字段，无需在此处完成转换。

sc.Add(dtDealerCode + "," + dtInvoiceNo + "," + Convert.ToDateTime(dtInvoiceDate) + "," + dtItemIdentityCode.Text + "," + dtPurchasingPrice.Text + "," + dtDiscountRate + "," + dtDiscount + "," + Convert.ToDateTime(dtIssueMode) + "," + dtQty.Text + "," + dtTotal.Text + "," + Convert.ToDateTime(dtExpireDate) + "," + dtBatchNumber.Text + "," + dtUploadedStatus + "," + dtInsertedDate + "," + Convert.ToDateTime(dtUploadedDate) + "," + dtForce + "," + dtPrinciple + "," + dtPrinciple + "," + NewTotal.Text);

const string sqlStatement =
                "INSERT INTO DEL_PurchasesLines1 (DealerCode,InvoiceNo,InvoiceDate,ItemIdentityCode,PurchasingPrice,DiscountRate,Discount,IssueMode,Qty,Total,ExpireDate,BatchNumber,UploadedStatus,InsertedDate,UploadedDate,Force,Principle,NewTotal) VALUES"(yourstringCollection);

此处还有一件事是，只提取控件而不是其值来从控件使用.Text获取值。

 var dtExpireDate = (Label)GridView1.Rows[rowIndex].Cells[5].FindControl("ExpiaryDate").text;

转换数据以保存在数据库中

2 个答案: