asp.net Gridview分页保存选项


            复制代码 代码如下:#region //'Revision: 1.00 Created Date: 2013/08/02 Created ID: Una [#1300071]增加多選框        /// <summary>        /// Session獲取多選框值        /// </summary>        private void RememberOldValues()        {            ArrayList categoryIDList = new ArrayList();            string index = "";            foreach (GridViewRow row in gridView.Rows)            {                index = (string)gridView.DataKeys[row.RowIndex].Value;                bool result = ((CheckBox)row.FindControl("DeleteThis")).Checked;

                // Check in the Session                if (Session["id"] != null)                    categoryIDList = (ArrayList)Session["id"];                if (result)                {                    if (!categoryIDList.Contains(index))                        categoryIDList.Add(index);                }                else                    categoryIDList.Remove(index);            }            if (categoryIDList != null && categoryIDList.Count > 0)                Session["id"] = categoryIDList;        }

        /// <summary>        /// Session分頁時之前多選框為true        /// </summary>        private void RePopulateValues()        {            ArrayList categoryIDList = (ArrayList)Session["id"];            if (categoryIDList != null && categoryIDList.Count > 0)            {                foreach (GridViewRow row in gridView.Rows)                {                    string index = (string)gridView.DataKeys[row.RowIndex].Value;                    if (categoryIDList.Contains(index))                    {                        CheckBox myCheckBox = (CheckBox)row.FindControl("DeleteThis");                        myCheckBox.Checked = true;                    }                }            }        }        #endregion复制代码 代码如下:protected void gridView_PageIndexChanging(object sender, GridViewPageEventArgs e)        {            RememberOldValues();            gridView.PageIndex = e.NewPageIndex;            BindData();            RePopulateValues();        }复制代码 代码如下:protected void btnSelect_Click(object sender, EventArgs e)        {            string items = "";            ArrayList categoryIDList = new ArrayList();            string index ="";            foreach (GridViewRow row in gridView.Rows)            {                index = (string)gridView.DataKeys[row.RowIndex].Value;                bool result = ((CheckBox)row.FindControl("DeleteThis")).Checked;

                // Check in the Session                if (Session["id"] != null)                    categoryIDList = (ArrayList)Session["id"];                if (result)                {                    if (!categoryIDList.Contains(index))                        categoryIDList.Add(index);                }                else                    categoryIDList.Remove(index);            }            if (categoryIDList != null && categoryIDList.Count > 0)                for (int i = 0; i < categoryIDList.Count; i++)                {                    items += categoryIDList[i] + ",";                }            items = items.Substring(0, items.Length - 1);            ScriptManager.RegisterStartupScript(this, this.GetType(), "", "check('" + items + "');", true);            Session.Remove("id");        }