我在ObjectQuery< TblProduct>上发现错误filterdProduct = new ObjectQuery< TblProduct>(" SELECT VALUE P FROM TblProducts AS P" cs); [英] i am geting error at ObjectQuery<TblProduct> filterdProduct = new ObjectQuery<TblProduct>("SELECT VALUE P FROM TblProducts AS P",cs);

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本文介绍了我在ObjectQuery< TblProduct>上发现错误filterdProduct = new ObjectQuery< TblProduct>(" SELECT VALUE P FROM TblProducts AS P" cs);的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

使用System;

使用System.Collections.Generic;

使用System.ComponentModel;

使用System.Data;

使用System.Drawing;

使用System.Linq;

使用System.Text;

使用System.Threading.Tasks ;

使用System.Windows.Forms;

使用System.Data.Objects;

使用System.Data.SqlClient;





名称空间Cof​​feeshope

{

公共部分类CostumerOrders:表格

{



private coffeeshopeEntities1 cs = new coffeeshopeEntities1();

private BindingList< tblproduct> products = new BindingList< tblproduct>();

private decimal tt;



公共小数Tt

{

得到{return tt; }

set {tt = value;

txttotal.Text = string.Format({0:c},tt);

}

}

public CostumerOrders()

{

InitializeComponent();

lstProductsChosen.DataSource = products;

lstProductsChosen.DisplayMember =Description;

createtabbedpanel();

}

private void createtabbedpanel()

{

foreach(cslProductType pt in cs.TblProductTypes)

{

tabControl1.TabPages.Add(pt.ProductType.ToString(),pt.Description);

}

}

private void addproducts1()

{

int i = 1;

foreach(TabCon tp in tabControl1.TabPages)

{

ObjectQuery< tblproduct> filterdProduct = new ObjectQuery< tblproduct>(SELECT VALUE P FROM TblProducts AS P,cs);

}

}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.Objects;
using System.Data.SqlClient;


namespace Coffeeshope
{
public partial class CostumerOrders : Form
{

private coffeeshopeEntities1 cs = new coffeeshopeEntities1();
private BindingList<tblproduct> products = new BindingList<tblproduct>();
private decimal tt;

public decimal Tt
{
get { return tt; }
set { tt = value;
txttotal.Text = string.Format("{0:c}", tt);
}
}
public CostumerOrders()
{
InitializeComponent();
lstProductsChosen.DataSource = products;
lstProductsChosen.DisplayMember = "Description";
createtabbedpanel();
}
private void createtabbedpanel()
{
foreach (TblProductType pt in cs.TblProductTypes)
{
tabControl1.TabPages.Add(pt.ProductType.ToString(), pt.Description);
}
}
private void addproducts1()
{
int i = 1;
foreach (TabPage tp in tabControl1.TabPages)
{
ObjectQuery<tblproduct> filterdProduct = new ObjectQuery<tblproduct>("SELECT VALUE P FROM TblProducts AS P",cs);
}
}

推荐答案

参见 https://msdn.microsoft.com/en-us/library/bb738995(v = vs.110).aspx [ ^ ]。如果错误仍然存​​在,那么您确实需要向我们提供完整的详细信息。
See https://msdn.microsoft.com/en-us/library/bb738995(v=vs.110).aspx[^]. If the error persists, then you really need to give us the full details.


这篇关于我在ObjectQuery&lt; TblProduct&gt;上发现错误filterdProduct = new ObjectQuery&lt; TblProduct&gt;(&quot; SELECT VALUE P FROM TblProducts AS P&quot; cs);的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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