我需要为SharePoint开发一个Web部件,该部件可以读取列表并创建树形视图。
树形视图应按以下方式组织: 根(或根)由表示类别的选择字段创建,例如饮料, 子节点是包含该类别的行的名称,树形视图必须通过编程方式创建。
List:
Title(string) Category(Choice)
Coke Drinks
Beer Drinks
Fish Food
Chips Food
Would produce this:
Drinks
Coke
Beer
Food
Fish
Chips
目前我所拥有的代码
TreeView treeView;
TreeNode rootNode;
TreeNode childNode;
protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
{
// render the control
base.RenderContents(writer);
}
protected override void CreateChildControls()
{
List<TreeNode> items = new List<TreeNode>();
base.CreateChildControls();
// get the current site
using (SPSite Site = new SPSite(SPContext.Current.Site.Url + "/UberWiki"))
{
using (SPWeb currentWeb = Site.OpenWeb())
{
// set the tree view properties
SPList list = currentWeb.Lists["Pages"];
SPFieldChoice field = (SPFieldChoice)list.Fields["Categories"];
foreach (string str in field.Choices)
{
treeView = new System.Web.UI.WebControls.TreeView();
rootNode = new System.Web.UI.WebControls.TreeNode(str);
treeView.Nodes.Add(rootNode);
foreach (SPListItem rows in list.Items)
{
childNode = new System.Web.UI.WebControls.TreeNode(rows.Title);
treeView.Nodes.Add(childNode);
}
}
}
this.Controls.Add(treeView);
base.CreateChildControls();
}
}