c＃订单处理ASP.NET页
[英]c# Order Processing ASP.NET Page
问题描述
I am building a ASP.NET page which is an Sales Order Processing Form I have two Last issues that due to my lack of experience in the language I am struggling with hopefully you can help. 
我正在构建一个ASP.NET页面，这是一个销售订单处理表单，由于我缺乏使用该语言的经验，我遇到了两个最后的问题，希望您能为您提供帮助。
Issue 1 - I have a field <asp:DropDownList runat="server" ID="txtProduct"></asp:DropDownList> that is pulling from a database table Called Products to populate its options list. 问题1-我有一个字段<asp:DropDownList runat="server" ID="txtProduct"></asp:DropDownList>从数据库表Called Products中提取来填充其选项列表。 I need to automatically pull the SalesPrice value and insert it into the txtUnitAmount field based on the selection of the Product. 我需要根据产品的选择自动拉出SalesPrice值并将其插入到txtUnitAmount字段中。
Issue 2 - Once the form has been filled and there are records in the DataTable I then need to insert all of the rows into the Database table SalesOrders when a user clicks a button. 问题2-表单填写完毕并且DataTable中有记录后，我需要在用户单击按钮时将所有行插入数据库表SalesOrders中。
My ASPX code (in full) 我的ASPX代码（完整）
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SOPOrderEntry.aspx.cs" Inherits="CRM2Sage.SOPOrderEntry1" %>
<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<link rel="Stylesheet" type="text/css" href="stylesheet.css" />
<title>CRM2Sage - SOP Entry Form</title>
<style type="text/css">
.style1
{
width: 100%;
float: left;
border-style: solid;
border-width: 1px;
}
</style>
<script type="text/javascript">
function q_multi_p(form) {
q = eval(form.txtQty.value)
p = eval(form.txtUnitAmount.value)
t = q * p
form.txtValue.value = t
}
</script>
</head>
<body style="padding: 0; margin: 0;">
<div style="width: 1170px; margin: 0 auto;">
<form id="form1" runat="server">
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:CRM2Sage %>"
SelectCommand="SELECT [AccountRef], [Name], [Add1], [Add2], [Add3], [Add4], [Add5], [ContactName], [Telephone], [Terms] FROM [Customers]">
<SelectParameters>
<asp:Parameter DefaultValue="1" Name="AccountRef" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<div style="width: 1170px; height: 211px;">
<table align="right" cellpadding="0" class="style1">
<tr>
<td>
<asp:DetailsView ID="DetailsView1" runat="server" Height="100%" Width="585px"
AutoGenerateRows="False" DataSourceID="SqlDataSource1"
EnableModelValidation="True" HorizontalAlign="Left" CellPadding="4" ForeColor="#333333"
GridLines="None">
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<CommandRowStyle BackColor="#E2DED6" Font-Bold="True" />
<EditRowStyle BackColor="#999999" />
<FieldHeaderStyle BackColor="#E9ECF1" Font-Bold="True" />
<Fields>
<asp:BoundField DataField="AccountRef" HeaderText="Account Ref"
SortExpression="AccountRef" />
<asp:BoundField DataField="Name" HeaderText="Company Name"
SortExpression="Name" />
<asp:BoundField DataField="Add1" HeaderText="Address" SortExpression="Add1" />
<asp:BoundField DataField="Add2" SortExpression="Add2" />
<asp:BoundField DataField="Add3" HeaderText="City" SortExpression="Add3" />
<asp:BoundField DataField="Add4" HeaderText="County" SortExpression="Add4" />
<asp:BoundField DataField="Add5" HeaderText="Post Code" SortExpression="Add5" />
<asp:BoundField DataField="ContactName" HeaderText="Contact"
SortExpression="ContactName" />
<asp:BoundField DataField="Telephone" HeaderText="Telephone"
SortExpression="Telephone" />
<asp:BoundField DataField="Terms" HeaderText="Credit Terms"
SortExpression="Terms">
<HeaderStyle CssClass="lbl" />
<ItemStyle CssClass="row" />
</asp:BoundField>
</Fields>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
</asp:DetailsView>
</td>
<td>
<table>
<tr>
<td><asp:Label ID="OrderNoLabel" runat="server" Text="Customer Order No."></asp:Label></td>
<td><asp:TextBox ID="OrderNoText" runat="server"
ontextchanged="OrderNoText_TextChanged"></asp:TextBox></td>
</tr>
<tr>
<td><asp:Button ID="GenInvRef" runat="server" Text="Gen Invoice Ref"
onclick="GenInvRef_Click" /></td>
<td><asp:TextBox ID="InvRefText" runat="server"
ontextchanged="InvRefText_TextChanged"></asp:TextBox></td>
</tr>
</table>
</td>
</tr>
</table>
</div>
<div style="width: 100%; border: 2px Groved #666; background-color: #FFF; height: 100%; padding: 15px;">
<fieldset style="height:200px;">
<asp:Label ID="lblTips" runat="server" ForeColor="White" BackColor="Red" Width="100%" />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
Width="100%" CellPadding="4" EmptyDataText="No Order Lines Created Yet!"
ForeColor="#333333" EnableModelValidation="True" GridLines="None">
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<Columns>
<asp:BoundField DataField="id" HeaderText="ID" Visible="False" />
<asp:BoundField DataField="AccountRef" HeaderText="Account #" />
<asp:BoundField DataField="InvRef" HeaderText="Invoice Ref" />
<asp:BoundField DataField="CustOrderNo" HeaderText="Order Number" />
<asp:BoundField DataField="Product" HeaderText="Product" />
<asp:BoundField DataField="Qty" HeaderText="Qty" />
<asp:BoundField DataField="UnitAmount" HeaderText="Unit Amount" />
<asp:BoundField DataField="Value" HeaderText="Line Total" />
<asp:BoundField DataField="TakenBy" HeaderText="Taken By" />
</Columns>
<EditRowStyle BackColor="#999999" />
<FooterStyle BackColor="#5D7B9D" ForeColor="White" Font-Bold="True" />
<RowStyle ForeColor="#333333" BackColor="#F7F6F3" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<div style="margin: 0 auto; position: relative;">
<asp:Table ID="Table1" runat="server" Width="1158px"
ForeColor="#333333" GridLines="None">
<asp:TableHeaderRow EnableTheming="true" BackColor="#5D7B9D" Font-Bold="True" ForeColor="White">
<asp:TableHeaderCell>Account Ref:</asp:TableHeaderCell>
<asp:TableHeaderCell>Invoice Ref</asp:TableHeaderCell>
<asp:TableHeaderCell>Customer Order #</asp:TableHeaderCell>
<asp:TableHeaderCell>Product</asp:TableHeaderCell>
<asp:TableHeaderCell>Qty</asp:TableHeaderCell>
<asp:TableHeaderCell>Unit Amount</asp:TableHeaderCell>
<asp:TableHeaderCell>Value</asp:TableHeaderCell>
<asp:TableHeaderCell>Taken By</asp:TableHeaderCell>
</asp:TableHeaderRow>
<asp:TableRow ForeColor="#333333" BackColor="#F7F6F3">
<asp:TableCell><asp:TextBox ID="txtAccountRef" runat="server" CssClass="ContactSmallTextField" ReadOnly="True"></asp:TextBox></asp:TableCell>
<asp:TableCell><asp:TextBox ID="txtInvoiceRef" runat="server" CssClass="ContactSmallTextField"></asp:TextBox ></asp:TableCell>
<asp:TableCell><asp:TextBox ID="txtCustOrderNo" runat="server" CssClass="ContactSmallTextField"></asp:TextBox></asp:TableCell>
<asp:TableCell><asp:DropDownList runat="server" ID="txtProduct"></asp:DropDownList></asp:TableCell>
<asp:TableCell><asp:TextBox ID="txtQty" runat="server" CssClass="ContactExtTextField" onChange="javascript:q_multi_p(this.form)"></asp:TextBox></asp:TableCell>
<asp:TableCell><asp:TextBox ID="txtUnitAmount" runat="server" CssClass="ContactSmallTextField"></asp:TextBox></asp:TableCell>
<asp:TableCell><asp:TextBox ID="txtValue" runat="server" CssClass="ContactSmallTextField"></asp:TextBox></asp:TableCell>
<asp:TableCell><asp:TextBox ID="txtTakenBy" runat="server" CssClass="ContactSmallTextField"></asp:TextBox></asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell><asp:Button ID="btnAdd" runat="server" Text="Add Order Line" OnClick="btnAdd_Click" CssClass="btn" /></asp:TableCell>
</asp:TableRow>
</asp:Table>
</div>
</fieldset>
</div>
</form>
</div>
</body>
</html>
My CS Code in Full 我的CS代码完整
using System;
using System.Data;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Web.Security;
using System.Web.Configuration;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
namespace CRM2Sage
{
public partial class SOPOrderEntry1 : System.Web.UI.Page
{
internal DataTable myDt = null;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
myDt = new DataTable();
myDt = CreateDataTable();
Session["myDatatable"] = myDt;
this.GridView1.DataSource = ((DataTable)Session["myDatatable"]).DefaultView;
this.GridView1.DataBind();
}
getAccountRef();
Fill1();
}
protected void btnAdd_Click(object sender, EventArgs e)
{
if (txtAccountRef.Text.Trim() == "")
{
this.lblTips.Text = "You must have an Account Number.";
return;
}
else
{
AddDataToTable (
this.txtAccountRef.Text.Trim(),
(string)Request.Form["InvRefText"].ToString(),
(string)Request.Form["OrderNoText"].ToString(),
(string)Request.Form["txtProduct"].ToString(),
//this.txtProduct.Text.Trim(),
this.txtQty.Text.Trim(),
(string)Request.Form["txtUnitAmount"].ToString(),
//this.txtUnitAmount.Text.Trim(),
this.txtValue.Text.Trim(),
this.txtTakenBy.Text.Trim(),
(DataTable)Session["myDatatable"]
);
this.GridView1.DataSource = ((DataTable)Session["myDatatable"]).DefaultView;
this.GridView1.DataBind();
//this.txtAccountRef.Text = "";
this.txtInvoiceRef.Text = "";
//this.txtCustOrderNo.Text = "";
//this.txtProduct.SelectedItem.Text = "";
this.txtQty.Text = "";
//this.txtUnitAmount.Text = "";
this.txtValue.Text = "";
this.txtTakenBy.Text = "";
this.lblTips.Text = "";
}
}
private void AddDataToTable(string AccountRef, string InvRef, string CustOrderNo, string Product, string Qty, string UnitAmount, string Value, string TakenBy, DataTable myTable)
{
DataRow row;
row = myTable.NewRow();
row["id"] = Guid.NewGuid().ToString();
row["AccountRef"] = AccountRef;
row["InvRef"] = InvRef;
row["CustOrderNo"] = CustOrderNo;
row["Product"] = Product;
row["Qty"] = Qty;
row["UnitAmount"] = UnitAmount;
row["Value"] = Value;
row["TakenBy"] = txtTakenBy.Text;
myTable.Rows.Add(row);
}
private DataTable CreateDataTable()
{
DataTable myDataTable = new DataTable();
DataColumn myDataColumn;
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "id";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "AccountRef";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "InvRef";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "CustOrderNo";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "Product";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "Qty";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "UnitAmount";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "Value";
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = Type.GetType("System.String");
myDataColumn.ColumnName = "TakenBy";
myDataTable.Columns.Add(myDataColumn);
return myDataTable;
}
public void Fill1()
{
string connectionString = WebConfigurationManager.ConnectionStrings["CRM2Sage"].ConnectionString;
using (SqlConnection _con = new SqlConnection(connectionString))
using (SqlCommand cmd = new SqlCommand("SELECT * FROM Products", _con))
{
cmd.Connection.Open();
SqlDataReader ddlValues;
ddlValues = cmd.ExecuteReader();
txtProduct.DataSource = ddlValues;
txtProduct.DataValueField = "Description";
txtProduct.DataTextField = "Description";
txtProduct.DataBind();
cmd.Connection.Close();
cmd.Connection.Dispose();
}
}
public void getAccountRef()
{
string getAccountRef = (string)Request.QueryString["AccountRef"].ToString();
SqlDataSource1.SelectParameters[0].DefaultValue = getAccountRef;
txtAccountRef.Text = getAccountRef;
}
public void getOrderNo()
{
string getOrderNo = (string)Request.Form["OrderNoText"].ToString();
txtCustOrderNo.Text = getOrderNo;
}
protected void OrderNoText_TextChanged(object sender, EventArgs e)
{
getOrderNo();
}
private string GenerateId()
{
long i = 1;
foreach (byte b in Guid.NewGuid().ToByteArray())
{
i *= ((int)b + 1);
}
return string.Format("{0:x}", i - DateTime.Now.Ticks);
}
protected void GenInvRef_Click(object sender, EventArgs e)
{
string GenInvRef = GenerateId();
InvRefText.Text = GenInvRef;
}
public void getInvRef()
{
string getInvRef = (string)Request.Form["InvRefText"].ToString();
txtInvoiceRef.Text = getInvRef;
}
protected void InvRefText_TextChanged(object sender, EventArgs e)
{
getInvRef();
}
//public void Fill2()
//{
// string getProdValue = WebConfigurationManager.ConnectionStrings["CRM2Sage"].ConnectionString;
// using (SqlConnection _con = new SqlConnection(getProdValue))
// using (SqlCommand cmd = new SqlCommand("SELECT SalesPrice FROM Products WHERE Description = '" + txtProduct + "'", _con))
// {
// cmd.Connection.Open();
// var unitPrice = cmd.ExecuteScalar();
// txtUnitAmount.Text = unitPrice.ToString();
// cmd.Connection.Close();
// cmd.Connection.Dispose();
// }
//}
//protected void txtProduct_OnSelectedIndexChanged(object sender, EventArgs e)
//{
// Fill2();
//}
}
}
I think with a bit of help and guidance I will be done and ever so grateful this will also stand me in good sted for further projects, thanks in advance to everyone who answers I will of course give full props to everyone who helps out. 我想我将在一定的帮助和指导下完成，并且非常感激，这也将使我为进一步的项目做好准备，在此先感谢所有回答的人，我当然会为所有帮助的人提供全面的支持。
In the mean time a thank you to @Slappy, @Nick & @MikeEast and the other many who have been really helpful thus far. 同时，感谢@ Slappy，@ Nick和@MikeEast以及到目前为止对其他方面确实有帮助的其他人。
Best 最好
Justin 贾斯汀
2 个解决方案
解决方案1
1 已采纳
As I can't write the entire code, so only giving you some hints. 由于我无法编写完整的代码，因此只给您一些提示。
1. Create a class with the field name you want to insert into you DB.
Like for Sales order, whatever fields you have in your form,
create properties for the same.
2. Bind the grid and Dropdowns from the database using the datatable.
3. Put a hidden field on the form to detect insert or update process
4. On selection chnage of grid or dropdown fill the form fields,
you have for sales order. By extracting the rows from the datatable
and fill it to textboxes.
5. While save button click , create a method that will be used for filling
up the SalesOrder Class object. pass this object to data layer, extract
the properties and pass it as parameter in your AddUpadte query.
解决方案2
-1 2015-06-04 05:46:55
which framework are you using? 您正在使用哪个框架？ Dropdown list auto postback=true should be set, then create event SelectedIndex Change then write your code to auto fill the text post ( textboxName.text = dropdownlistName.selectedItem.Tex ). 应当设置下拉列表auto postback = true，然后创建事件SelectedIndex Change，然后编写代码以自动填充文本帖子（ textboxName.text = dropdownlistName.selectedItem.Tex ）。
Hope it helps:) 希望能帮助到你：）
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