acumatica Filtering with multiple value with only one selector Retrieving Sales Order for multilple customer

Example

When trying to filter some record using multiple value in a selector. First you must use the px:PXMultiSelector in the aspx page instead of the normal px:PXSelector. Then after you must create yourself a graph containing at least three views and a view delegate. you will also need at least a basic unbound DAC.

Here is an sample page with the px:PXMultiSelector:

<%@ Page Language="C#" MasterPageFile="~/MasterPages/FormDetail.master" AutoEventWireup="true" ValidateRequest="false" CodeFile="TT000000.aspx.cs" Inherits="Page_TT000000" Title="Untitled Page" %>

<%@ MasterType VirtualPath="~/MasterPages/FormDetail.master" %>

<asp:Content ID="cont1" ContentPlaceHolderID="phDS" runat="Server">
<px:PXDataSource ID="ds" runat="server" Visible="True" Width="100%"
    TypeName="MultiSelector.MultiInquiry"
    PrimaryView="MasterView">
    <CallbackCommands>
    </CallbackCommands>
</px:PXDataSource>
</asp:Content>
<asp:Content ID="cont2" ContentPlaceHolderID="phF" runat="Server">
<px:PXFormView ID="form" runat="server" DataSourceID="ds" DataMember="MasterView" Width="100%" Height="100px" AllowAutoHide="false">
    <Template>
        <px:PXMultiSelector ID="edInventoryID" runat="server" Width="100%" DataSourceID="ds" DataField="Customer" CommitChanges="True"></px:PXMultiSelector>
    </Template>
</px:PXFormView>
</asp:Content>
<asp:Content ID="cont3" ContentPlaceHolderID="phG" runat="Server">
<px:PXGrid ID="grid" runat="server" DataSourceID="ds" Width="100%" Height="150px" SkinID="Details" AllowAutoHide="false">
    <Levels>
        <px:PXGridLevel DataMember="DetailsView">
            <Columns>
                <px:PXGridColumn DataField="OrderType" Width="70"></px:PXGridColumn>
                <px:PXGridColumn DataField="OrderNbr" Width="200"></px:PXGridColumn>
                <px:PXGridColumn DataField="OrderDesc" Width="100"></px:PXGridColumn>
                <px:PXGridColumn DataField="CustomerOrderNbr" Width="100"></px:PXGridColumn>
                <px:PXGridColumn DataField="Status" Width="100"></px:PXGridColumn>
                <px:PXGridColumn DataField="RequestDate" Width="100"></px:PXGridColumn>
                <px:PXGridColumn DataField="ShipDate" Width="100"></px:PXGridColumn>
                <px:PXGridColumn DataField="CustomerID" Width="100"></px:PXGridColumn>
            </Columns>
        </px:PXGridLevel>
    </Levels>
    <AutoSize Container="Window" Enabled="True" MinHeight="150" />
    <ActionBar>
    </ActionBar>
</px:PXGrid>
</asp:Content>

Here is the sample graph with the views and the delegate.

public class MultiInquiry : PXGraph<MultiInquiry>
{
    public PXCancel<MasterTable> Cancel;
    public PXFilter<MasterTable> MasterView;
    public PXSelect<SOOrder> DetailsView;

    public PXSelectJoin<SOOrder, LeftJoin<BAccount, On<SOOrder.customerID, Equal<BAccount.bAccountID>>>, Where<BAccount.acctCD, In<Required<BAccount.acctCD>>>> Orders2;

    protected virtual IEnumerable detailsView()
    {
        var list = new List<SOOrder>();
        var customers = MasterView.Current.Customer;
        if (customers != null)
        {
            List<string> customerList = new List<string>();
            customerList.AddRange(customers.Split(new string[] { "; " }, StringSplitOptions.None));
            object[] val = new object[] { customerList.ToArray() };

            foreach (PXResult<SOOrder> res in Orders2.Select(val))
            {
                SOOrder order = res;
                list.Add(order);
            }
        }
        return list;
    }
}

To this we add the DAC containing the definition for the field used in the MultiSelector and the constant for only selecting customer accounts.

    [Serializable]
    public class MasterTable : IBqlTable
    {
        #region InventoryID
        public abstract class customer : IBqlField { }
        [PXString()]
        [PXUIField(DisplayName = "Customer")]
        [PXSelector(typeof(Search<BAccount.acctCD, Where<BAccount.type, Equal<CustomerType>>>), ValidateValue = false)]
        public virtual string Customer { get; set; }
        #endregion

    }

    public class CustomerType : Constant<string> { public CustomerType() : base("CU") { } }

And the result for this example could be something like this :