ASP.NET Repeater绑定不成功的问题

不成功方式如下，利用DataView筛选DataTable，如下写法发现Repeater绑定不上，
if (ViewState["khjd"] != null)
            {
                string khjd = ViewState["khjd"].ToString();
                dv.RowFilter = "Customer_Source = '" + khjd + "'";
                DataTable dts = dv.ToTable();
                //var linqs = linq.Where(i => FindKHJD(i.Customer_Source) == khjd);
                this.AspNetPager1.RecordCount = dts.Rows.Count;
                this.Repeater2.DataSource = GetPagedTable(dts, this.AspNetPager1.CurrentPageIndex, Convert.ToInt32(this.ddlPageSize.SelectedValue));
            }
            else
            {
                this.AspNetPager1.RecordCount = dt.Rows.Count;
                this.Repeater2.DataSource = GetPagedTable(dt, this.AspNetPager1.CurrentPageIndex, Convert.ToInt32(this.ddlPageSize.SelectedValue));
            }
            this.AspNetPager1.PageSize = Convert.ToInt32(this.ddlPageSize.SelectedValue);
            this.Repeater2.DataBind();
把代码更改成

  this.AspNetPager1.RecordCount = dt.Rows.Count;
            this.Repeater2.DataSource = GetPagedTable(dt, this.AspNetPager1.CurrentPageIndex, Convert.ToInt32(this.ddlPageSize.SelectedValue));
            if (ViewState["khjd"] != null)
            {
                string khjd = ViewState["khjd"].ToString();
                dv.RowFilter = "Customer_Source = '" + khjd + "'";
                DataTable dts = dv.ToTable();
                //var linqs = linq.Where(i => FindKHJD(i.Customer_Source) == khjd);
                this.AspNetPager1.RecordCount = dts.Rows.Count;
                this.Repeater2.DataSource = GetPagedTable(dts, this.AspNetPager1.CurrentPageIndex, Convert.ToInt32(this.ddlPageSize.SelectedValue));
            } 
            this.AspNetPager1.PageSize = Convert.ToInt32(this.ddlPageSize.SelectedValue);
            this.Repeater2.DataBind();

　　这样就能绑定上了，如果有大神可以解释一下感激不尽阿。