修改
开发工具与关键技术：修改
作者：周乐献
撰写时间：2019/5/8
数据的修改
如果数据出现了错误或者想要更新数据就要修改它，那么怎么修改数据呢？
首先运用单击事件打开修改模态框
function openUpdate(xueyuanId)
{
重置表单
$('#formUpdatexueyuan input[type="reset"]').click();
回填数据
$.post("/Main/xueyuan", { xueyuanId: UxueyuanId },
function (data) {
loadDatatoForm("formUpdateXueyuan", data);
根据json对象填充form表单
},"json")
弹出模态框
$("#modalUpdateXueyuan").modal('show');
}
保存修改
function savaUpdate()
{
获取页面数据
var XueyuanID = $("#UXueyuanID").val()
var XueyuanName = $("#UXueyuanName").val()
var XueyuanCode = $("#UXueyuanCode").val()
判断
if (XueyuanID != '' && XueyuanID != undefined && !isNaN(XueyuanID)
&& XueyuanName != '' && XueyuanName != undefined
&& XueyuanCode != '' && XueyuanCode != undefined)
{
提交数据
$.post("/Main//UpdateXueyuan",
{
XueyuanID: XueyuanID,
XueyuanName: XueyuanName,
XueyuanCode: XueyuanCode
},
function (returnJson) {
if (returnJson.State == true) {
关闭模态框
$("#modalUpdateXueyuan").modal('hide');
tabXueyuan = layuiTable.reload('tabXueyuan');
}
layer.alert(returnJson.Text);
}, "json");
} else
{
提示
layer.alert('请填写完整', { title: '提示', icon: 0 });
}
}
和数据库数据进行绑定修改
public ActionResult UpdateXueyuan(PW_xueyuan pwXueyuan)
{
ReturnJson returnJson = new ReturnJson();
try
{
int otherCount = (from tbXueyuan in myModel.PW_xueyuan
where tbXueyuan.XueyuanID!=pwXueyuan.XueyuanID&&(
tbXueyuan.XueyuanName==pwXueyuan.XueyuanName.Trim()||
tbXueyuan.XueyuanCode == pwXueyuan.XueyuanCode.Trim())
select tbXueyuan).Count();
if (otherCount == 0)
{
选择要修改的数据
PW_xueyuan dbXueyuan = (from tbXueyuan in myModel.PW_xueyuan
根据学院ID提取数据
where tbXueyuan.XueyuanID == pwXueyuan.XueyuanID
select tbXueyuan).Single();
通过学院表进行实体赋值
dbXueyuan.XueyuanName = pwXueyuan.XueyuanName;
dbXueyuan.XueyuanCode = pwXueyuan.XueyuanCode;
执行修改
myModel.Entry(dbXueyuan).State = EntityState.Modified;
保存修改
if (myModel.SaveChanges() > 0)
{
returnJson.State = true;
returnJson.Text = "修改成功";
} else {
returnJson.State = false;
returnJson.Text = "修改失败";
}
}else {
returnJson.State = false;
returnJson.Text = "和其他学院重复";
}
判断与其他学院名称进行重复没有，如果重复则不能修改
}
catch (Exception e)
{
Console.WriteLine(e);
returnJson.State = false;
returnJson.Text = "数据异常";
}
return Json(returnJson, JsonRequestBehavior.AllowGet);
}
