ASPxGridView和Linq常用总结(2)

2018-09-06 12:01

阅读:338

  实现目标:使用js、Linq和ASPxGridView实现增删改数据
1、查询(点击grd,赋值text)

  //cs后台

  引用using System.Web.Script.Serialization;

  protected void Page_Load(object sender, EventArgs e)
{
//if (Session["LoginUser"] == null)
//{
// Response.Write("<script>top.window.location.href('../login.aspx')</script>");
//}
Ajax.Utility.RegisterTypeForAjax(typeof(Driver));//注册Ajax
}

  //js页面可以使用此方法

  [Ajax.AjaxMethod(Ajax.HttpSessionStateRequirement.Read)]
public string GetTableByKey(int iCode)
{
Tb_Table objTable = linqDataSource.Tb_Table .SingleOrDefault(p => p.ID == iCode);
JavaScriptSerializer jscvt = newJavaScriptSerializer();
string jsonobjTable = jscvt.Serialize(objTable );
return jsonobjTable ;
}

  //js页面

  function getQueryTable() {
var sId = grdView.GetRowValues(grdView.GetFocusedRowIndex(), 'ID;Name', QueryTable);
}

  function QueryTable(values) {
var key = values[0];
if (key != null) {
var objTable= 后台页面.GetTableByKey(key);
if (objTable.value != "null") {
objTable = eval('(' + objTable.value + ')');

   txt_DriverName.SetText(objTable.DriverName);
txt_DriverName.SetIsValid(1);
dte_DriverlicenseDateB.SetText(objTable.DriverlicenseDateB);
}
}
else {

btnEdit.SetEnabled(false);
btnDelete.SetEnabled(false);
}
}

  //源

  //grd

  <ClientSideEvents FocusedRowChanged="function(s, e) { getQueryTable(); }"/>

  2、删除一行

  //js页面

  function getDeleteDriver() {
var sDriverId = grdDriver.GetRowValues(grdDriver.GetFocusedRowIndex(), 'DriverID;DriverName',

  DeleteDriver);
}

  //删除菜单
function DeleteDriver(values) {
var key = values[0];
if (key != null) {
var r = confirm('您确定要删除此司机信息吗?');
if (r == true) {
var r_Del = Driver.DeleteDriver(key);

   if (r_Del.value != "成功") {
alert(r_Del.value);
}
else {
grdDriver.PerformCallback("");

}
}
}
else {
alert('请选中您要删除的模块!');
}
}

  //cs页面

   [Ajax.AjaxMethod(Ajax.HttpSessionStateRequirement.Read)]
public string DeleteDriver(string iCode)
{
try
{
Tb_Driver objDriver = linqData.Tb_Driver.SingleOrDefault(p => p.DriverID == Convert.ToInt32

  (iCode));
if (objDriver != null)
{
linqData.Tb_Driver.DeleteOnSubmit(objDriver);
linqData.SubmitChanges();
return "成功";
}
else
{
return "删除失败,模块信息不存在!";
}
}
catch (System.Exception ex)
{
}

  
}

  //源

  //删除按钮

  <ClientSideEvents click="function(s, e) { getDeleteDriver(); }"/>

  3、新增、修改和保存

  //cs页面

  [Ajax.AjaxMethod(Ajax.HttpSessionStateRequirement.Read)]
public string AddDriver(string sDriverName,string sSFZH, dFristLicenseDate)
{

try
{
Tb_Driver objDriver = new Tb_Driver();
objDriver.DriverName = sDriverName;
objDriver.SFZH = sSFZH;
if (dFristLicenseDate!="")
{
objDriver.FristLicenseDate = Convert.ToDateTime(dFristLicenseDate);
}
linqData.SubmitChanges();
return "成功";
}
catch (System.Exception ex)
{
return ex.Message;
}

   }

  
[Ajax.AjaxMethod(Ajax.HttpSessionStateRequirement.Read)]
public string EidtDriver(int iDriverID, string sDriverName,string dFristLicenseDate)
{
try
{
Tb_Driver objDriver = linqData.Tb_Driver.SingleOrDefault(p => p.DriverID == iDriverID);
if (objDriver != null)
{
objDriver.DriverName = sDriverName;
objDriver.SFZH = sSFZH;
if (dFristLicenseDate != "")
{
objDriver.FristLicenseDate = Convert.ToDateTime(dFristLicenseDate);
}

   linqData.SubmitChanges();
return "成功";

   }
else
{
return "编辑失败,模块信息不存在!";
}
}
catch (System.Exception ex)
{
return ex.Message;
}

   }

  //js页面

  function getSaveDriver() {
var sDriverId = grdDriver.GetRowValues(grdDriver.GetFocusedRowIndex(), 'DriverID;DriverName', SaveDriver);
}

  function SaveDriver(values) {

   var keyID = values[0];
//执行客户端合法性验证
var sDriverName = txt_DriverName.GetText();
var sSFZH=txt_SFZH.GetText();
if (sDriverLicenseFileNo == "") {
txt_DriverLicenseFileNo.Validate();
return;
}
var key = roundEdit.GetHeaderText();
var sResult;
if (key == "司机信息---编辑") {

   sResult = Driver.EidtDriver(values[0], sDriverName, sSFZH, dFristLicenseDate);

   }
if (key == "司机信息---新增") {
sResult=Driver.AddDriver(sDriverName, sSFZH, dFristLicenseDate);
}
if (sResult.value != "成功") {
alert(sResult.value);
return;
}
else {
grdDriver.PerformCallback("");
if (key == "司机信息---编辑") {
setPageState(0);
}
if (key == "司机信息---新增") {
setPageState(2);
}
}
}

  //源

  //保存按钮

  <ClientSideEvents click="function(s, e) { getSaveDriver(); }"/>

  注意:所有页面按钮的AutoPostBack="False"

  
摘自 SYZ_YUMEIZHOU_YY


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