Asp.net使用repeater控件动态添加、删除一行
前台：
js：OpenWindow
<script type="text/javascript">
var txtEquipmentIdsIDArray = new Array();
function OpenWindow(clientId, TypeId, ReqNum) {
var url = "../EquipmentIssue/EquipmentRequestIssue.aspx?TypeId=" + TypeId + "&ReqNum=" + ReqNum;
var widths = 600;
var heigths = 450;
var winPar = window.showModalDialog(url, window, 'dialogWidth=' + widths + 'px;dialogHeight=' + heigths + 'px;status=no;center=yes;scroll=no;help:No;');
if (winPar != undefined) {
var txtEquipmentIds = document.getElementById(clientId);
txtEquipmentIds.value = winPar;
// //审批用户控件中保存发放的EquipmentId
// var IsExistEquipmentIdsID = false;
// for (var i = 0; i < txtEquipmentIdsIDArray.length; i++) {
// if (txtEquipmentIdsIDArray[i] == clientId) {
// IsExistEquipmentIdsID = true;
// }
// }
// if (IsExistEquipmentIdsID == false) {
// txtEquipmentIdsIDArray.push(clientId);
// }
// var tempEquipmentId = "";
// for (var i = 0; i < txtEquipmentIdsIDArray.length; i++) {
// tempEquipmentId = tempEquipmentId + document.getElementById(txtEquipmentIdsIDArray[i]).value;
// var hiddenEquipmentIds = document.getElementById("UC_ApprovalAction1_hfEquipmentIds");
// hiddenEquipmentIds.value = tempEquipmentId;
// }
// //alert(hiddenEquipmentIds.value);
}
var tempReturnValue = "";
var tb_Request = document.getElementById("tb_Request");
var tr = tb_Request.getElementsByTagName("tr");
for (var i = 0; i < tr.length; i++) {
if (tr[i].id != "") {
var span_EquRequestItemId = tr[i].getElementsByTagName("span"); //获取申请明细的IDEquRequestItemId
var select_ddlStation; //获取使用工位StationId
var option = tr[i].getElementsByTagName("select")[1].getElementsByTagName("option");
for (var j = 0; j < option.length; j++) {
if (option[j].selected)
{
select_ddlStation = option[j]
}
}
var textarea_EquipmentIds = tr[i].getElementsByTagName("textarea"); //获取发放的资产号EquipmentNo
tempReturnValue = tempReturnValue + span_EquRequestItemId[0].innerText + ":" + select_ddlStation.value + ":" + textarea_EquipmentIds[0].innerText + "|";
}
}
var hiddenEquipmentIds = document.getElementById("UC_ApprovalAction1_hfEquipmentIds");
hiddenEquipmentIds.value = tempReturnValue;
//alert(hiddenEquipmentIds.value);
}
</script>
Repeater:
<div id="div_Repeater"> <asp:HiddenField ID="hfRptColumns" runat="server" Value="Guid,EquRequestItemId,EquipmentType,Station,EquipmentNum,EquipmentIds" /> <table id="tb_Request" cellpadding="1" cellspacing="0" width="100%" style="background-color: #DFE8F6; font-size:12px; padding:10px;"> <thead> <tr> <th>序号</th> <th>明细编号</th> <th> 资产类型 </th> <th> 使用工位 </th> <th> 申请数量 </th> <th> 发放的资产号<font color="red">(资产管理员填写)</font> </th> </tr> </thead> <tbody> <asp:Repeater ID="rptRequest" runat="server" onitemcommand="rptRequest_ItemCommand" onitemdatabound="rptRequest_ItemDataBound"> <ItemTemplate> <tr id="tr_Request"> <td> <%# Container.ItemIndex+1 %> <asp:Label ID="lblGuid" runat="server" Text='<%#Eval("Guid") %>' Visible="false"></asp:Label> </td> <td><asp:Label ID="lblEquRequestItemId" runat="server" Text='<%#Eval("EquRequestItemId") %>'></asp:Label></td> <td> <asp:DropDownList ID="ddlEquipmentType" runat="server"></asp:DropDownList> <asp:Label ID="lblEquipmentType" runat="server" Text='<%#Eval("EquipmentType") %>' Visible="false"></asp:Label> </td> <td> <asp:DropDownList ID="ddlStation" runat="server"></asp:DropDownList> <asp:Label ID="lblStation" runat="server" Text='<%#Eval("Station") %>' Visible="false"></asp:Label> </td> <td><asp:TextBox ID="txtReqEquipmentNum" runat="server" Text='<%#Eval("EquipmentNum") %>'></asp:TextBox></td> <td><asp:TextBox ID="txtEquipmentIds" runat="server" Text='<%#Eval("EquipmentIds") %>' TextMode="MultiLine"></asp:TextBox></td> <td><asp:Button ID="btnAddRow" runat="server" Text="新增一行" CommandName="add" /> <asp:Button ID="btnDeleteRow" runat="server" Text="删除本行" CommandName="delete" /></td> </tr> </ItemTemplate> </asp:Repeater> </tbody> </table> </div>
后台：
/// <summary> /// 绑定repeater的数据源 /// </summary> private void RepeaterBindData() { DataTable dt = DefineDataTableSchema(hfRptColumns.Value); if (Request["BusinessNo"] == null) { LoadData(dt); } else { LoadData(Request["BusinessNo"].ToString(), dt); } rptRequest.DataSource = dt; rptRequest.DataBind(); } private void LoadData(string businessNo, DataTable dt) { string strSql = "select * from EMS_EquipmentRequestItem where BussinessNo = '"+ businessNo +"'"; DataTable dt_EquipmentRequestItem = DBUtility.DbHelperSQL.Query(strSql).Tables[0]; //for (int i = 0; i < dt_EquipmentRequestItem.Rows.Count; i++) foreach (DataRow dr in dt_EquipmentRequestItem.Rows) { DataRow row = dt.NewRow(); row["Guid"] = Guid.NewGuid(); row["EquRequestItemId"] = dr["EquRequestItemId"].ToString(); row["EquipmentType"] = dr["TypeId"].ToString(); row["Station"] = dr["StationId"].ToString(); row["EquipmentNum"] = dr["EquipmentNum"].ToString(); row["EquipmentIds"] = dr["EquipmentIds"].ToString(); dt.Rows.Add(row); } } /// <summary> /// repeater数据默认加载 /// </summary> /// <param name="dt"></param> private void LoadData(DataTable dt) { //默认显示1行 for (int i = 0; i < 1; i++) { DataRow row = dt.NewRow(); dt.Rows.Add(row); } //为第一行加载一些数据 DataRow row0 = dt.Rows[0]; row0["Guid"] = Guid.NewGuid(); row0["EquRequestItemId"] = ""; row0["EquipmentType"] = ""; row0["Station"] = ""; row0["EquipmentNum"] = "1";//默认初始为1 row0["EquipmentIds"] = ""; } /// <summary> /// 根据repeater相对应的列名，定义数据源datatable的schema /// </summary> /// <param name="columns">列名</param> /// <returns></returns> public DataTable DefineDataTableSchema(string columns) { DataTable dt = new DataTable(); string[] columnsAry = columns.Split(','); foreach (string str in columnsAry) { dt.Columns.Add(str); } return dt; } protected void rptRequest_ItemCommand(object source, RepeaterCommandEventArgs e) { if (e.CommandName == "add") { System.Web.UI.WebControls.Label lblGuid = (System.Web.UI.WebControls.Label)e.Item.FindControl("lblGuid"); //首先，恢复数据源 DataTable dt = DefineDataTableSchema(hfRptColumns.Value); foreach (RepeaterItem item in rptRequest.Items) { DataRow newRow = dt.NewRow(); newRow["Guid"] = ((System.Web.UI.WebControls.Label)item.FindControl("lblGuid")).Text; newRow["EquRequestItemId"] = ((System.Web.UI.WebControls.Label)item.FindControl("lblEquRequestItemId")).Text; newRow["EquipmentType"] = ((DropDownList)item.FindControl("ddlEquipmentType")).SelectedValue; newRow["Station"] = ((DropDownList)item.FindControl("ddlStation")).SelectedValue; newRow["EquipmentNum"] = ((TextBox)item.FindControl("txtReqEquipmentNum")).Text; newRow["EquipmentIds"] = ((TextBox)item.FindControl("txtEquipmentIds")).Text; dt.Rows.Add(newRow); if (lblGuid.Text == ((System.Web.UI.WebControls.Label)item.FindControl("lblGuid")).Text) { //添加一行 DataRow row = dt.NewRow(); row["Guid"] = Guid.NewGuid(); row["EquipmentType"] = ""; row["Station"] = ""; row["EquipmentNum"] = "1";//默认初始为1 row["EquipmentIds"] = ""; dt.Rows.Add(row); } } rptRequest.DataSource = dt; rptRequest.DataBind(); } else if (e.CommandName == "delete") { System.Web.UI.WebControls.Label lblGuid = (System.Web.UI.WebControls.Label)e.Item.FindControl("lblGuid"); //首先，恢复数据源 DataTable dt = DefineDataTableSchema(hfRptColumns.Value); foreach (RepeaterItem item in rptRequest.Items) { if (lblGuid.Text != ((System.Web.UI.WebControls.Label)item.FindControl("lblGuid")).Text) { DataRow newRow = dt.NewRow(); newRow["Guid"] = ((System.Web.UI.WebControls.Label)item.FindControl("lblGuid")).Text; newRow["EquRequestItemId"] = ((System.Web.UI.WebControls.Label)item.FindControl("lblEquRequestItemId")).Text; newRow["EquipmentType"] = ((DropDownList)item.FindControl("ddlEquipmentType")).SelectedValue; newRow["Station"] = ((DropDownList)item.FindControl("ddlStation")).SelectedValue; newRow["EquipmentNum"] = ((TextBox)item.FindControl("txtReqEquipmentNum")).Text; newRow["EquipmentIds"] = ((TextBox)item.FindControl("txtEquipmentIds")).Text; dt.Rows.Add(newRow); } } rptRequest.DataSource = dt; rptRequest.DataBind(); } } protected void rptRequest_ItemDataBound(object sender, RepeaterItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) { DropDownList ddlEquipmentType_temp = e.Item.FindControl("ddlEquipmentType") as DropDownList; string sqlstr = @"select distinct b.TypeId,b.EquipmentName + '_' + b.EquipmentType as 'EquipmentName_EquipmentType' from EMS_EquipmentInfo a join EMS_EquipmentType b on a.TypeId = b.TypeId and b.Status = '1' order by EquipmentName_EquipmentType"; DataSet ds = DBUtility.DbHelperSQL.Query(sqlstr); ddlEquipmentType_temp.DataTextField = "EquipmentName_EquipmentType"; ddlEquipmentType_temp.DataValueField = "TypeId"; ddlEquipmentType_temp.DataSource = ds; ddlEquipmentType_temp.DataBind(); ddlEquipmentType_temp.SelectedValue = (e.Item.FindControl("lblEquipmentType") as System.Web.UI.WebControls.Label).Text; DropDownList ddlStation_temp = e.Item.FindControl("ddlStation") as DropDownList; string sqlstr2 = @"select NodeId,Line + '_' + StationName as 'Line_StationName' from V_Stations where status='1' order by Line_StationName"; DataSet ds2 = DBUtility.DbHelperSQL.Query(sqlstr2); ddlStation_temp.DataTextField = "Line_StationName"; ddlStation_temp.DataValueField = "NodeId"; ddlStation_temp.DataSource = ds2; ddlStation_temp.DataBind(); ddlStation_temp.SelectedValue = (e.Item.FindControl("lblStation") as System.Web.UI.WebControls.Label).Text; TextBox txtEquIds = e.Item.FindControl("txtEquipmentIds") as TextBox; txtEquIds.Attributes.Add("readonly", "true"); if (Request["BusinessNo"] != null) { (e.Item.FindControl("btnAddRow") as System.Web.UI.WebControls.Button).Visible = false; (e.Item.FindControl("btnDeleteRow") as System.Web.UI.WebControls.Button).Visible = false; string businessNo = Request["BusinessNo"].ToString(); bool IsApplyUser = Is_ApplyUser(Session["currentUserID"].ToString(), businessNo, "EMS_EquipmentRequest", "Requester");//是否为申请人本人 if (IsApplyUser == true) { string requestStatus = HttpUtility.UrlDecode(Request["RequestStatus"].ToString(), System.Text.Encoding.UTF8);//申请单的当前状态 if (requestStatus == "草稿" || requestStatus == "退回") { (e.Item.FindControl("btnAddRow") as System.Web.UI.WebControls.Button).Visible = true; (e.Item.FindControl("btnDeleteRow") as System.Web.UI.WebControls.Button).Visible = true; } } else { bool IsCurrentAppprovaler = Is_CurrentAppprovaler(Session["currentUserID"].ToString(), businessNo);//是否为当前能做审批的人 if (IsCurrentAppprovaler == true) { string sql = " SELECT TOP 1 LayerName from EMS_Approvaler where BussinessNo='" + businessNo + "' " + " AND ApprovalStatus='N' ORDER BY AppSequence "; DataTable dt = DBUtility.DbHelperSQL.Query(sql).Tables[0]; if (dt.Rows.Count != 0 && dt.Rows[0]["LayerName"].ToString() == "资产管理员") { string ReqNum = (e.Item.FindControl("txtReqEquipmentNum") as TextBox).Text.Trim(); txtEquIds.Attributes.Add("onclick", "OpenWindow('" + txtEquIds.ClientID + "','" + ddlEquipmentType_temp.SelectedValue + "','" + ReqNum + "')"); } } } } } }
本文基于http://www.cnblogs.com/dataadapter/archive/2012/06/25/2562885.html 修改，感谢Mike.Jiang
