使用n层体系结构中的实体框架插入数据库 [英] Insertion into database using entity framework in n-tier architecture
问题描述
嗨.....
我在may表中有3列。 Id主键和身份键,状态默认值为false,反馈。
我只想在n层arct中使用实体框架的反馈中插入值。
首先,我制作了Bo类,例如private int id; pubic int id {get,set}
现在我用DAL类创建函数(ENAme context = new Ename)
Tablename tt = new Tablename
context.addtotalename(tt)
context.savechanges();
现在我做了BAL类whaere我调用了DAL函数。在mu aspx.cs页面,我点击按钮确实工作
Bo aa = new BO();
aa.feedback = Textbox1.text;
bal ss = new bal();
ss.insert(aa)
我的错误是无法将空值插入''feedback''。
首先编写反馈的硬代码值。如果这对你有用。这意味着你没有得到反馈的价值
谢谢
传递所有不可空的值这里简单
Hi.....
I have 3 column in may table. Id primary key and identity key,status default value false,feedback.
I want insert value only in feedback using entity framework in n-tier arct.
First of all i made Bo class such as private int id; pubic int id{get,set}
Now I made DAL class where I made function using(ENAme context=new Ename)
Tablename tt=new Tablename
context.addtotalename(tt)
context.savechanges();
Now I made BAL class whaere I call DAL function.In mu aspx.cs page I did work on click on button
Bo aa=new BO();
aa.feedback=Textbox1.text;
bal ss=new bal();
ss.insert(aa)
My error is that cannot insert the null into ''feedback''.
Hi ,
First you write the hard code value for feedback . if this will work for you . its means you did not get the value of feedback
Thanks
pass all values which are not nullable simple here
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