public override void InitControl()
{
string keyword = Control.Params["keyword"];
CategoryHelper helper = HelperFactory.Instance.GetHelper <CategoryHelper>();
List <Category> col = helper.GetChildrenListByKeyword(keyword);//二级
Field1DropDownList.DataSource = col;
Field1DropDownList.DataTextField = "Name";
Field1DropDownList.DataValueField = "ID";
Field1DropDownList.DataBind();
Field1DropDownList.Items.Insert(0, new ListItem("请选择", ""));
Field1DropDownList.SelectedValue = Value as string;
Field1DropDownList.Attributes.Add("onchange", "getSubcate(this,1,'ID')");
Field2DropDownList.Attributes.Add("onchange", "getSubcate(this,2,'KeyWord')");
Field3DropDownList.Attributes.Add("onchange", "subcateChange('" + Field3DropDownList.ClientID + "',3)");
//已有内容还原
if (Value != null)
{
string keywordSubcate = Value.ToString();
Field3Hidden.Value = keywordSubcate;
List <Category> colThreecates = helper.GetSiblingListByKeyword(keywordSubcate);
if (colThreecates != null)
{
Field3DropDownList.DataSource = colThreecates;
Field3DropDownList.DataTextField = "Name";
Field3DropDownList.DataValueField = "KeyWord";
Field3DropDownList.DataBind();
Field3DropDownList.Items.Insert(0, new ListItem("请选择", ""));
Category parent = helper.GetCategory(colThreecates[0].ParentID);
List <Category> colTwoSubcates = helper.GetSiblingListByKeyword(parent.KeyWord);
Category parentOne = helper.GetCategory(colTwoSubcates[0].ParentID);
Field2DropDownList.DataSource = colTwoSubcates;
Field2DropDownList.DataTextField = "Name";
Field2DropDownList.DataValueField = "ID";
Field2DropDownList.DataBind();
Field2DropDownList.Items.Insert(0, new ListItem("请选择", ""));
//默认选中索引
int parentSelectIndex = colTwoSubcates.FindIndex(p => p.ID == parent.ID) + 1; //二级
int subSelectedIndex = colThreecates.FindIndex(p => p.KeyWord == keywordSubcate) + 1; //三级
int parentOneSelectIndex = col.FindIndex(p => p.ID == parentOne.ID) + 1; //一级
Field3DropDownList.SelectedIndex = subSelectedIndex;
Field2DropDownList.SelectedIndex = parentSelectIndex;
Field1DropDownList.SelectedIndex = parentOneSelectIndex;
}
}
}
/// <summary>
/// 绑定数据(xml)
/// </summary>
void BindXmlData()
{
ICascadeDataProvider provider = GetProvider();
Field1DropDownList.DataSource = provider.QuryFirstLevel("");
Field1DropDownList.DataTextField = "key";
Field1DropDownList.DataValueField = "value";
Field1DropDownList.DataBind();
string nodesName = Control.Params["NodesName"];
string attributesName = Control.Params["AttributesName"];
Field1DropDownList.Attributes.Add("onchange", "ThreeCascadeField2('" + Field1DropDownList.ClientID + "',this.value,'" + Field2DropDownList.ClientID + "','" + field2TextMapping + "','" + field2ValueMapping + "','" + field1ValueMapping + "','" + tableName + "','" + Field3DropDownList.ClientID + "','" + field3TextMapping + "','" + field3ValueMapping + "','" + emptyText + "','" + dataSourceType + "','" + Control.Params["data"] + "','" + nodesName + "','" + attributesName + "')");
this.Field2DropDownList.Attributes.Add("onchange", "ThreeCascadeField3('" + Field1DropDownList.ClientID + "',this.value,'" + Field3DropDownList.ClientID + "','" + field3TextMapping + "','" + field3ValueMapping + "','" + field2ValueMapping + "','" + field1ValueMapping + "','" + tableName + "','" + emptyText + "','" + dataSourceType + "','" + Control.Params["data"] + "','" + nodesName + "','" + attributesName + "')");
Field1DropDownList.Items.Insert(0, new ListItem("请选择", ""));
Field1DropDownList.SelectedValue = field1DataField.Value == null ? "" : field1DataField.Value.ToString();
if (!String.IsNullOrEmpty(Field1DropDownList.SelectedValue))
{
Field2DropDownList.DataSource = provider.QuerySecondLevel(field1DataField.Value.ToString());
Field2DropDownList.DataTextField = "key";
Field2DropDownList.DataValueField = "value";
Field2DropDownList.DataBind();
if (!string.IsNullOrEmpty(emptyText))
{
Field2DropDownList.Items.Insert(0, new ListItem("请选择", ""));
}
if (field2DataField.Value != null)
{
Field2DropDownList.SelectedValue = field2DataField.Value == null ? "" : field2DataField.Value.ToString();
}
}
if (!String.IsNullOrEmpty(Field2DropDownList.SelectedValue))
{
Field3DropDownList.DataSource = provider.QueryThirdLevel(field1DataField.Value.ToString(), field2DataField.Value.ToString());
Field3DropDownList.DataTextField = "key";
Field3DropDownList.DataValueField = "value";
Field3DropDownList.DataBind();
if (!string.IsNullOrEmpty(emptyText))
{
Field3DropDownList.Items.Insert(0, new ListItem("请选择", ""));
}
if (field3DataField.Value != null)
{
Field3DropDownList.SelectedValue = field3DataField.Value == null ? "" : field3DataField.Value.ToString();
}
}
}