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150 lines
4.0 KiB
150 lines
4.0 KiB
using Forks.EnterpriseServices.BusinessInterfaces;
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using Forks.EnterpriseServices.DomainObjects2;
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using Forks.EnterpriseServices.DomainObjects2.DQuery;
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using Forks.Utils;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using TSingSoft.WebControls2;
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using TSingSoft.WebPluginFramework;
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namespace BWP.Web.WebControls
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{
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public class SelectNamedValueRelationBox<T> : WebControl, INamingContainer
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{
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interface IEditor
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{
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object GetData();
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}
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IEditor mEditor;
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class Editor1<T1> : IEditor
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{
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Type mRelationType;
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string mSelfField;
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long mSelfValue;
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string mOtherField;
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public Editor1(Type relationType, string selfField, long selfValue, string otherField)
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{
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this.mRelationType = relationType;
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this.mSelfField = selfField;
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this.mSelfValue = selfValue;
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this.mOtherField = otherField;
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}
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public object GetData()
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{
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var query = new DQueryDom(new JoinAlias(mRelationType));
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query.Where.Conditions.Add(DQCondition.EQ(mSelfField, mSelfValue));
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query.Columns.Add(DQSelectColumn.Field(mOtherField));
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return query.EExecuteList<NamedValue<T1>>();
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}
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}
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long mSelfValue;
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public SelectNamedValueRelationBox(bool canEdit, Type relationType, string selfField, long selfValue, string otherField)
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{
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CanEdit = canEdit;
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mSelfValue = selfValue;
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mEditor = new Editor1<T>(relationType, selfField, selfValue, otherField);
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}
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class RepeaterTemplate : ITemplate
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{
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public bool CanEdit;
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Label label;
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LinkButton linkButton;
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public void InstantiateIn(Control container)
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{
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label = new Label();
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linkButton = new LinkButton() { Text = "x", Visible = CanEdit };
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container.Controls.Add(linkButton);
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container.Controls.Add(new LiteralControl(" "));
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container.Controls.Add(label);
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container.Controls.Add(new LiteralControl(" "));
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container.DataBinding += new EventHandler(container_DataBinding);
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}
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void container_DataBinding(object sender, EventArgs e)
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{
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var item = (RepeaterItem)sender;
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var dataItem = item.DataItem as NamedValue<T>?;
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label.Text = dataItem.Value.Name;
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linkButton.CommandName = "Delete";
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linkButton.CommandArgument = dataItem.Value.Value.ToString();
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}
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}
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Repeater repeater;
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NamedValueInput<T> box;
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public bool CanEdit;
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protected override void CreateChildControls()
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{
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repeater = new Repeater();
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repeater.ItemTemplate = new RepeaterTemplate() { CanEdit = this.CanEdit };
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Controls.Add(repeater);
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repeater.ItemCommand += (sender, e) =>
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{
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var value = new NamedValue<T>(short.Parse(e.CommandArgument.ToString()));
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using (var context = new TransactionContext())
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{
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DeleteRelationAction(context.Session, mSelfValue, value);
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context.Commit();
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}
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RepeaterDataBind();
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};
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box = new NamedValueInput<T>() { EnableTopItem = true, Width = Unit.Pixel(120) };
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box.AutoPostBack = true;
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box.Visible = CanEdit;
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box.SelectedValueChanged += (sender, e) =>
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{
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if (box.IsEmpty)
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{
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return;
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}
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using (var context = new TransactionContext())
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{
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AddRelationAction(context.Session, mSelfValue, box.Value.Value);
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context.Commit();
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}
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RepeaterDataBind();
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box.Clear();
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};
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Controls.Add(box);
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}
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public Action<IDmoSession, long, NamedValue<T>> AddRelationAction;
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public Action<IDmoSession, long, NamedValue<T>> DeleteRelationAction;
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void RepeaterDataBind()
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{
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EnsureChildControls();
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repeater.DataSource = (IList<NamedValue<T>>)mEditor.GetData();
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repeater.DataBind();
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}
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protected override void OnLoad(EventArgs e)
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{
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base.OnLoad(e);
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if (!Page.IsPostBack)
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{
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RepeaterDataBind();
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}
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}
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}
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}
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