CS0407：'bool Threading_Threading.insertion（）'的返回类型错误 [英] CS0407: 'bool Threading_Threading.insertion()' has the wrong return type

问题描述

// insertion function return true if insertion done
public bool insertion()
   {
       bool result=false;
       try
       {
           object[,] obj = new object[,] { { "@Name", txtName.Text }, { "@Address", txtAddress.Text }, { "@EmailId", txtEmailId.Text } };
           result=DB.ExecuteNonQuery_SP("InsertThreading", obj);
       }
       catch (Exception ex) { }
       return result;
   }

//thread for insertion and display "success" if InsertionThreadMethod() is true
 protected void btnSave_Click(object sender, EventArgs e)
{

        ThreadStart InsertionThread = new ThreadStart(insertion);
        Thread t1 = new Thread(InsertionThread);
        t1.Priority = ThreadPriority.Highest;
        t1.Start();
        if (InsertionThreadMethod() == true)
        {
            lblResult.Text = "Insertion Successful";
        }


}

错误显示：CS0407：'bool Threading_Threading。 insert（）'有错误的返回类型

error showing :CS0407: 'bool Threading_Threading.insertion()' has the wrong return type

推荐答案

首先，当你还想在完成之前等待线程完成时，为什么要使用线程？事件方法？也可以在不使用线程的情况下从btnSave_Click方法调用插入方法，特别是因为你仍然要等待它的结果。



一个方法启动在一个线程中无法返回值。如果需要此类功能，则必须使用线程安全变量。在我看来，从您显示的代码中，最好是完全删除线程，而只是调用插入方法。

First off, why are you making use of a thread when you still want to wait for the thread to finish before finishing the event method? Might as well call the insertion method from the btnSave_Click method without the use of threads especially since you're still going to wait for its result.

A method which is started in a thread could not return a value. If you need such functionality, you must make use of a thread safe variable. In my opinion, from the code that you're showing, it would be best if you remove the thread completely and instead just call the insertion method.

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