取用户控件属性?怎么弄,有代码

Question

compdept.ascx.cspublic partial class CompDept : System.Web.UI.UserControl
    {
        private string _compid;
        private string _deptid;
        public string compId
        {
            get
            {
                return _compid;
            }
            set
            {
                this._compid = value;
            }
        }        public string deptId
        {
            get
            {
                return _deptid;
            }
            set
            {
                this._deptid = value;
            }
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindDrop();
            }
        }
        private void BindDrop()
        {
            this.dropComp.DataSource = HR.GetComp();
            this.dropComp.DataBind();
            BindDep(this.dropComp.SelectedValue);
            this._compid = this.dropComp.SelectedValue;
            this._deptid = this.dropDept.SelectedValue;
        }
        private void BindDep(string compId)
        {
            DataTable dept = HR.GetDept();
            DataView deptView = new DataView(dept);
            deptView.RowFilter = "COMP = " + compId;
            this.dropDept.DataSource = deptView;
            this.dropDept.DataBind();
            this.dropDept.Items.Insert(0, new ListItem("----全部显示----", ""));
            this._compid = this.dropComp.SelectedValue;
            this._deptid = this.dropDept.SelectedValue;
        }
        protected void dropComp_SelectedIndexChanged(object sender, EventArgs e)
        {
            BindDep(this.dropComp.SelectedValue);
        }
    }

Answer 1

dept.aspx.cspublic partial class dept : System.Web.UI.Page
    {
        
        protected void Page_Load(object sender, EventArgs e)
        {
            SysUtils.ChkAdminRight();
            if (!IsPostBack)
            {
                SetMsgTab();
                BindGrid();
            }
        }
        private void SetMsgTab()
        {
            SysConfiguration.SetRes();
            this.MsgTab1.TUrl = HR.UnitLink;
            this.MsgTab1.TText = HR.UnitTitle;            this.MsgTab1.Title = "<img src=/es/img/jginf.gif border=0 align=absmiddle>组织结构";
            this.MsgTab1.SetHotTab(1);
        }
        private void BindGrid()
        {
            string compId = compDept1.compId;/////////这里总是Null值.???
            string deptId = compDept1.deptId;////////这里总是Null值.???
            DataView dv = HR.GetDept().DefaultView;
            dv.RowFilter = "COMP = " + compId;
            if (deptId != "")
            {
                this.dgdDep.DataSource = HR.GetDept(int.Parse(deptId));
            }
            else {
                this.dgdDep.DataSource = dv;
            }
            this.dgdDep.DataBind();
        }        protected void cmdQuery_Click(object sender, ImageClickEventArgs e)
        {
            BindGrid();
        }
    }

Answer 2

你在页面上是否已经赋值
就比如<yourControl:compDept id="compDept1" compId="123" deptId="456">

Answer 3

用的是vs03 ?
05在cs中是可以直接调用的
03好像 要手动 加上private CompDept compDept1;然后 在直接访问就可以了

Answer 4

回4楼,在页面上没有赋值啊,那些值要通过选择Dropdownlist才得到的啊

Answer 5

所以 这就是问题所在了啊 
在你的page_load里面根本就没有Dropdownlist什么事情 这两个属性当然就是空了啊 

Answer 6

说得不对了 
没仔细看清楚
现在的问题应该是 你的Dropdownlist在刚刚加载的时候 设置了Selected的item没有啊