//private JArray GetItemsJArray()
//{
// JArray ja = new JArray();
// int itemIndex = 0;
// foreach (RadioItem item in Items)
// {
// JObject jo = new JObject();
// jo.Add("inputValue", item.Value);
// jo.Add("boxLabel", item.Text);
// jo.Add("name", UniqueID);
// if (item.Selected)
// {
// jo.Add("checked", true);
// }
// ja.Add(jo);
// itemIndex++;
// }
// return ja;
//}
#endregion
#endregion
#region DataBind
/// <summary>
/// 绑定到数据源
/// </summary>
public override void DataBind()
{
base.DataBind();
if (_dataSource != null)
{
// 1. 首先清空 Items 属性
Items.Clear();
// 2. 绑定到数据源
if (_dataSource is DataView || _dataSource is DataSet || _dataSource is DataTable)
{
DataTable dataTable = null;
if (_dataSource is DataView)
{
dataTable = ((DataView)_dataSource).ToTable();
}
else if (_dataSource is DataSet)
{
dataTable = ((DataSet)_dataSource).Tables[0];
}
else
{
dataTable = ((DataTable)_dataSource);
}
DataBindToDataTable(dataTable);
}
else if (_dataSource is IEnumerable)
{
DataBindToEnumerable((IEnumerable)_dataSource);
}
else
{
throw new Exception("DataSource doesn't support data type: " + _dataSource.GetType().ToString());
}
// X_Items属性不是ServerAjaxProperty，所以只在页面第一次加载时判断是否改变
if (!Page.IsPostBack)
{
XState.AddModifiedProperty("X_Items");
}
}
}
protected override void OnFirstPreRender()
{
// 确保 X_Items 和 SelectedValue 在页面第一次加载时都存在于x_state中
XState.AddModifiedProperty("X_Items");
XState.AddModifiedProperty("SelectedValue");
base.OnFirstPreRender();
#region examples
//var nextStepList = [
// ['审核', '1'],
// ['不审核', '2']
//];
//var nextStepStore = new Ext.data.SimpleStore({
// fields: ['text', 'value'],
// data: nextStepList
//});
//{
// xtype:'combo',
// store: nextStepStore,
// displayField:'text',
// valueField:'value',
// typeAhead: true,
// mode: 'local',
// triggerAction: 'all',
// value:'1',
// emptyText:'请选择下一步',
// selectOnFocus:true,
// allowBlank:false,
// fieldLabel: '下一步',
// labelSeparator:' <span style="color:red;vertical-align:text-bottom;">*</span>',
// name: 'nextStep',
// anchor:'95%'
//}
#endregion
#region Properties
if (!EnableEdit)
{
OB.AddProperty("editable", false);
}
if (!ForceSelection)
{
OB.AddProperty("forceSelection", false);
}
if (Resizable)
{
OB.AddProperty("resizable", true);
}
OB.AddProperty("hiddenName", UniqueID);
//OB.RemoveProperty("name");
OB.AddProperty("store", "new Ext.data.ArrayStore({fields:['value','text','enabled','prefix']})", true);
#region old code
//OB.AddProperty("mode", "local");
//// 点击下拉按钮时显示全部内容
//OB.AddProperty("triggerAction", "all");
//// 必须选中一个值，不能自己输入内容
//OB.AddProperty("forceSelection", true);
//// 此下拉列表控件不可以编辑
//OB.AddProperty("editable", false);
//OB.AddProperty(OptionName.Title, "Title");
//if (TypeAhead) OB.AddProperty(OptionName.TypeAhead, true);
//OB.AddProperty(OptionName.SelectOnFocus, true);
//// SelectedValue可以为空
//if (!String.IsNullOrEmpty(SelectedValue))
//{
// OB.AddProperty("value", SelectedValue);
//}
#endregion
#endregion
#region old code
//string hiddenFieldsScript = String.Empty;
//if (AutoPostBack)
//{
// hiddenFieldsScript += GetSetHiddenFieldValueScript(LastSelectedValueHiddenID, SelectedValue);
//}
//string disableSelectRowIndexsString = GetDisableSelectRowIndexsString();
//string disableSelectRowIndexsScript = GetSetHiddenFieldValueScript(DisableRowIndexsHiddenID, disableSelectRowIndexsString);
//// TODO:
//// 这个要放在加载数据的前面，因为加载数据时需要渲染UI，渲染UI时需要用到这个隐藏字段的值
//if (AjaxPropertyChanged("DisableSelectRowIndexsString", disableSelectRowIndexsString))
//{
// AddAjaxPropertyChangedScript(disableSelectRowIndexsScript);
//}
// 不管是不是disableSelectFields.Count > 0，都要执行下面的语句，因为可能页面加载时为0，在Ajax后不为零
//if (disableSelectFields.Count > 0)
//OB.AddProperty(OptionName.Tpl, String.Format("'<tpl for=\".\"><div class=\"x-combo-list-item {{[X.util.isHiddenFieldContains(\"{0}\",xindex-1) ? \"box-combo-list-item-disable-select\" : \"\"]}}\">{{text}}</div></tpl>'", DisableSelectRowIndexsHiddenID), true);
//var tplStr = "'<tpl for=\".\"><div class=\"x-combo-list-item\">{text}</div></tpl>'";
//var tplStr = "new Ext.XTemplate('<tpl for=\".\"><div class=\"x-combo-list-item\">{text}</div></tpl>')";
//var tplStr = "<tpl for=\".\"><div class=\"x-combo-list-item <tpl if=\"!enabled\">x-combo-list-item-disable</tpl>\">{prefix}{text}</div></tpl>";
//OB.AddProperty("tpl", tplStr);
//OB.AddProperty("tpl", tplStr.Replace("#DisableRowIndexsHiddenID#", DisableRowIndexsHiddenID), true);
//string setSimulateTreeTextFunctionScript = String.Empty;
//string setSimulateTreeTextScript = String.Empty;
//if (EnableSimulateTree)
//{
// string setSimulateTextScript = String.Format("var text=Ext.get('{0}').dom.value;if(text.lastIndexOf('<img')>=0){{Ext.get('{0}').dom.value=X.util.stripHtmlTags(text);}}", ClientID);
// setSimulateTreeTextFunctionScript = String.Format("{0}_setSimulateText=function(){{{1}}};", ClientJavascriptID, setSimulateTextScript);
// // 加载完毕后，显示选中的值
// //AddAbsoluteStartupScript(String.Format("{0}_setSimulateText();", ClientJavascriptID));
// // 下拉列表加载完毕后，立即去掉前面图片的HTML标签
// string renderScript = JsHelper.GetDeferScript(String.Format("{0}_setSimulateText();", ClientJavascriptID), 20); // "(function(){" + String.Format("{0}_setSimulateText();", ClientJavascriptID) + "}).defer(20);";
// OB.Listeners.AddProperty(OptionName.EVENT_RENDER, "function(component){" + renderScript + "}", true);
//}
//string simulateTreeAllScript = String.Empty;
//if (EnableSimulateTree)
//{
// // 在选中一项后，立即去掉前面图片的HTML标签
// simulateTreeAllScript += "\r\n";
// //string simulateTreeScript = String.Format("function(ddl,record,index){{var text=record.data.text;var startDivIndex=text.lastIndexOf('</div>');text=text.substr(startDivIndex+6);Ext.get('{0}').dom.value=text;}}", ClientID);
// string simulateTreeScript = String.Format("function(ddl,record,index){{X.{0}_setSimulateText();}}", ClientJavascriptID);
// simulateTreeScript = String.Format("{0}.on('{1}',{2},box,{{delay:0}});", ClientJavascriptID, OptionName.Select, simulateTreeScript);
// //AddAbsoluteStartupScript( simulateTreeScript);
// simulateTreeAllScript += simulateTreeScript;
// simulateTreeAllScript += "\r\n";
// string simulateTreeBlurScript = String.Format("function(ddl){{X.{0}_setSimulateText();}}", ClientJavascriptID);
// simulateTreeBlurScript = String.Format("{0}.on('{1}',{2},box,{{delay:10}});", ClientJavascriptID, OptionName.Blur, simulateTreeBlurScript);
// //AddAbsoluteStartupScript( simulateTreeBlurScript);
// simulateTreeAllScript += simulateTreeBlurScript;
//}
// These are default values, which are assignment in extender.js.
//OB.AddProperty("displayField", "text");
//OB.AddProperty("valueField", "value");
//OB.AddProperty("store", "new Ext.data.ArrayStore({fields:['value','text','enabled','prefix']})", true);
//string dataScript = String.Empty;
//string fields = "['value','text','enabled','prefix']";
//string storeScript = "new Ext.data.ArrayStore({fields:['value','text','enabled','prefix']})";//", fields, GetDataArrayString()); // GetDataArrayString()
//OB.AddProperty(OptionName.Store, String.Format("new Ext.data.ArrayStore({{fields:['value','text'],data:{0}}})", dataArrayString), true);
//OB.AddProperty("store", String.Format("{0}_data", XID), true);
//string dataScript = String.Format("{0}_data=new Ext.data.ArrayStore({{fields:['value','text'],data:{1}}});", ClientJavascriptID, dataArrayString);
//sb.AppendFormat("this.{0}_store=new Ext.data.SimpleStore({{fields:['text', 'value'],data:this.{0}_data}});", ClientJavascriptID);
#endregion
#region AutoPostBack
StringBuilder beforeselectSB = new StringBuilder();
// 是否能选中一项（如果此项不能选中，则点击没用）
//beforeselectSB.AppendFormat("if(X.util.isHiddenFieldContains('{0}',index)){{return false;}}", DisableRowIndexsHiddenID);
beforeselectSB.Append("if(!record.data.enabled){return false;}");
if (AutoPostBack)
{
beforeselectSB.Append("cmp.x_tmp_lastvalue=cmp.getValue();");
string selectScript = "if(cmp.x_tmp_lastvalue!==cmp.getValue()){" + GetPostBackEventReference() + "}";
OB.Listeners.AddProperty("select", JsHelper.GetFunction(selectScript, "cmp"), true);
}
OB.Listeners.AddProperty("beforeselect", JsHelper.GetFunction(beforeselectSB.ToString(), "cmp", "record", "index"), true);
#region old code
//if (AutoPostBack)
//{
// // Note: we can't use change event, because it get triggered when the combox lost focus, which is not in time.
// // Beforeselect - If current select item is not changed, don't PostBack.
// string beforeselectScript = String.Format("function(ddl,record,index){{Ext.get('{0}').dom.value=Ext.get('{1}').dom.value;}}", LastSelectedValueHiddenID, SelectedValueHiddenID);
// beforeselectScript = String.Format("{0}.on('{1}',{2},X,{{delay:0}});", XID, "beforeselect", beforeselectScript);
// //AddAbsoluteStartupScript( beforeselectScript);
// autoPostBackScript += beforeselectScript;
// // Select
// string selectScript = String.Format("function(ddl,record,index){{if(record.data.value!=Ext.get('{0}').dom.value){{{1}}}}}", LastSelectedValueHiddenID, GetPostBackEventReference());
// selectScript = String.Format("{0}.on('{1}',{2},X,{{delay:0}});", XID, "select", selectScript);
// //AddAbsoluteStartupScript( selectScript);
// autoPostBackScript += selectScript;
// //OB.Listeners.RemoveProperty(OptionName.Change);
// //OB.Listeners.AddProperty(OptionName.Change, String.Format("function(ddl,newValue,oldValue){{box_pageStateChange();alert(newValue+':'+oldValue);}}"), true);
//}
#endregion
#endregion
#region Listeners - render
string renderScript = "cmp.x_loadData();cmp.x_setValue();";
OB.Listeners.AddProperty("render", JsHelper.GetFunction(renderScript, "cmp"), true);
#endregion
#region AddStartupScript
string contentScript = String.Format("var {0}=new Ext.form.ComboBox({1});", XID, OB.ToString());
AddStartupScript(contentScript);
#region old code
//List<string> totalModifiedProperties = XState.GetTotalModifiedProperties();
//StringBuilder loadDataSB = new StringBuilder();
//if (totalModifiedProperties.Contains("X_Items"))
//{
// loadDataSB.AppendFormat("{0}.x_loadData();", XID);
//}
//else
//{
// loadDataSB.AppendFormat("{0}.store.loadData({1});", XID, X_Items.ToString());
//}
//if (totalModifiedProperties.Contains("SelectedValue"))
//{
// loadDataSB.AppendFormat("{0}.x_setValue();", XID);
//}
//else
//{
// loadDataSB.AppendFormat("{0}.x_setValue({1});", XID, JsHelper.Enquote(SelectedValue));
//}
#endregion
#endregion
}