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#pragma once

namespace StudentDataSearch {

    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;

    /// <summary>
    /// Summary for Form1
    /// </summary>
    public ref class Form1 : public System::Windows::Forms::Form
    {
    public:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO: Add the constructor code here
            //
        }

    protected:
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::Button^  btnSearch;
    private: System::Windows::Forms::Label^  Course_ID1;
    protected: 

    private: System::Windows::Forms::TextBox^  txtTargetID;

    private: System::Windows::Forms::GroupBox^  groupBox1;
    private: System::Windows::Forms::TextBox^  txtSeats;
    private: System::Windows::Forms::Label^  Seats;
    private: System::Windows::Forms::TextBox^  txtID;
    private: System::Windows::Forms::Label^  Course_ID;
    private: System::Windows::Forms::TextBox^  txtName;
    private: System::Windows::Forms::Label^  Course_Names2;
    private: System::Windows::Forms::Button^  button1;

    private:
        /// <summary>
        /// Required designer variable.
        /// </summary>
        System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        void InitializeComponent(void)
        {
            this->btnSearch = (gcnew System::Windows::Forms::Button());
            this->Course_ID1 = (gcnew System::Windows::Forms::Label());
            this->txtTargetID = (gcnew System::Windows::Forms::TextBox());
            this->groupBox1 = (gcnew System::Windows::Forms::GroupBox());
            this->txtSeats = (gcnew System::Windows::Forms::TextBox());
            this->Seats = (gcnew System::Windows::Forms::Label());
            this->txtID = (gcnew System::Windows::Forms::TextBox());
            this->Course_ID = (gcnew System::Windows::Forms::Label());
            this->txtName = (gcnew System::Windows::Forms::TextBox());
            this->Course_Names2 = (gcnew System::Windows::Forms::Label());
            this->button1 = (gcnew System::Windows::Forms::Button());
            this->groupBox1->SuspendLayout();
            this->SuspendLayout();
            // 
            // btnSearch
            // 
            this->btnSearch->Location = System::Drawing::Point(12, 12);
            this->btnSearch->Name = L"btnSearch";
            this->btnSearch->Size = System::Drawing::Size(144, 39);
            this->btnSearch->TabIndex = 0;
            this->btnSearch->Text = L"Search by Course ID";
            this->btnSearch->UseVisualStyleBackColor = true;
            this->btnSearch->Click += gcnew System::EventHandler(this, &Form1::btnSearch_Click);
            // 
            // Course_ID1
            // 
            this->Course_ID1->AutoSize = true;
            this->Course_ID1->Location = System::Drawing::Point(317, 28);
            this->Course_ID1->Name = L"Course_ID1";
            this->Course_ID1->Size = System::Drawing::Size(54, 13);
            this->Course_ID1->TabIndex = 1;
            this->Course_ID1->Text = L"Course ID";
            // 
            // txtTargetID
            // 
            this->txtTargetID->Location = System::Drawing::Point(377, 25);
            this->txtTargetID->Name = L"txtTargetID";
            this->txtTargetID->Size = System::Drawing::Size(100, 20);
            this->txtTargetID->TabIndex = 2;
            // 
            // groupBox1
            // 
            this->groupBox1->Controls->Add(this->txtSeats);
            this->groupBox1->Controls->Add(this->Seats);
            this->groupBox1->Controls->Add(this->txtID);
            this->groupBox1->Controls->Add(this->Course_ID);
            this->groupBox1->Controls->Add(this->txtName);
            this->groupBox1->Controls->Add(this->Course_Names2);
            this->groupBox1->Location = System::Drawing::Point(12, 145);
            this->groupBox1->Name = L"groupBox1";
            this->groupBox1->Size = System::Drawing::Size(465, 140);
            this->groupBox1->TabIndex = 3;
            this->groupBox1->TabStop = false;
            this->groupBox1->Text = L"Search Results";
            // 
            // txtSeats
            // 
            this->txtSeats->Location = System::Drawing::Point(301, 81);
            this->txtSeats->Name = L"txtSeats";
            this->txtSeats->Size = System::Drawing::Size(100, 20);
            this->txtSeats->TabIndex = 5;
            // 
            // Seats
            // 
            this->Seats->AutoSize = true;
            this->Seats->Location = System::Drawing::Point(298, 65);
            this->Seats->Name = L"Seats";
            this->Seats->Size = System::Drawing::Size(34, 13);
            this->Seats->TabIndex = 4;
            this->Seats->Text = L"Seats";
            // 
            // txtID
            // 
            this->txtID->Location = System::Drawing::Point(204, 81);
            this->txtID->Name = L"txtID";
            this->txtID->Size = System::Drawing::Size(91, 20);
            this->txtID->TabIndex = 3;
            // 
            // Course_ID
            // 
            this->Course_ID->AutoSize = true;
            this->Course_ID->Location = System::Drawing::Point(206, 65);
            this->Course_ID->Name = L"Course_ID";
            this->Course_ID->Size = System::Drawing::Size(54, 13);
            this->Course_ID->TabIndex = 2;
            this->Course_ID->Text = L"Course ID";
            // 
            // txtName
            // 
            this->txtName->Location = System::Drawing::Point(25, 81);
            this->txtName->Name = L"txtName";
            this->txtName->Size = System::Drawing::Size(173, 20);
            this->txtName->TabIndex = 1;
            // 
            // Course_Names2
            // 
            this->Course_Names2->AutoSize = true;
            this->Course_Names2->Location = System::Drawing::Point(22, 65);
            this->Course_Names2->Name = L"Course_Names2";
            this->Course_Names2->Size = System::Drawing::Size(71, 13);
            this->Course_Names2->TabIndex = 0;
            this->Course_Names2->Text = L"Course Name";
            // 
            // button1
            // 
            this->button1->Location = System::Drawing::Point(12, 57);
            this->button1->Name = L"button1";
            this->button1->Size = System::Drawing::Size(144, 39);
            this->button1->TabIndex = 4;
            this->button1->Text = L"Search by Course Name";
            this->button1->UseVisualStyleBackColor = true;
            // 
            // Form1
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(519, 297);
            this->Controls->Add(this->button1);
            this->Controls->Add(this->groupBox1);
            this->Controls->Add(this->txtTargetID);
            this->Controls->Add(this->Course_ID1);
            this->Controls->Add(this->btnSearch);
            this->Name = L"Form1";
            this->Text = L"Student Data Search";
            this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);
            this->groupBox1->ResumeLayout(false);
            this->groupBox1->PerformLayout();
            this->ResumeLayout(false);
            this->PerformLayout();

        }
#pragma endregion
        private: array<String^>^ CourseArr;
        private: array<String^>^ CourseID;
        private: array<Int32^>^ SeatsArr;
    private: System::Void Form1_Load(System::Object^  sender, System::EventArgs^  e) {
                 // Course Names
                 CourseArr = gcnew array<String^>(9);
                 CourseArr->SetValue("Computer Sci 1511", 0);
                 CourseArr->SetValue("Computer Sci 1521", 1);
                 CourseArr->SetValue("Composition 1120", 2);
                 CourseArr->SetValue("Math 1296", 3);
                 CourseArr->SetValue("Physics 1120", 4);
                 CourseArr->SetValue("Biology 1100", 5);
                 CourseArr->SetValue("Chemistry 1100", 6);
                 CourseArr->SetValue("Anthropology 1210", 7);
                 CourseArr->SetValue("Economics 1000", 8);

                 // Course ID
                 CourseID = gcnew array<String^>(9);
                 CourseID->SetValue("123", 0);
                 CourseID->SetValue("124", 1);
                 CourseID->SetValue("135", 2);
                 CourseID->SetValue("145", 3);
                 CourseID->SetValue("146", 4);
                 CourseID->SetValue("149", 5);
                 CourseID->SetValue("155", 6);
                 CourseID->SetValue("162", 7);
                 CourseID->SetValue("175", 8);

                 //Seats Avaliable
                 SeatsArr->SetValue("0", 0);
                 SeatsArr->SetValue("25", 1);
                 SeatsArr->SetValue("14", 2);
                 SeatsArr->SetValue("5", 3);
                 SeatsArr->SetValue("0", 4);
                 SeatsArr->SetValue("20", 5);
                 SeatsArr->SetValue("17", 6);
                 SeatsArr->SetValue("0", 7);
                 SeatsArr->SetValue("12", 8);

             }




private: System::Void btnSearch_Click(System::Object^  sender, System::EventArgs^  e) {

下面的错误----------------------------------------------------------

我已经设置了一些数组来收集信息,到目前为止,我已经为我的 3 个数组设置了值,并设置了一个 for 循环来遍历数组,并根据我的文本框课程 ID 中的内容挑选出所需的信息,但它是没有打印任何东西,我不知道为什么我想通过将数组分配给变量然后将变量放在可以工作的文本框中,此时我已经迷失了,我知道我的解释不一定有帮助,但所有帮助表示赞赏

             int course;
             int id;
             int seats;
             for (int i = 0; i < course; i++)
             {
                 txtName->Text = CourseArr[i]->ToString();
                 txtID->Text =CourseID[i]->ToString(); 
                 txtSeats->Text = SeatsArr[i]->ToString();

                 course = CourseArr[i]->ToString();
                 id = CourseID[i]->ToString();
                 seats = SeatsArr[i]->ToString();

             }


         }
};
}
4

1 回答 1

0

您的第一个错误是尝试将字符串放入整数数组中。另外,为什么要声明一个装箱整数数组?

为什么使用SetValue而不是正常索引数组?

于 2013-05-31T20:31:39.167 回答