我是从python迁移的C＃编程的新手。我制作了两个Windows窗体应用程序，当第一个菜单按钮被点击第一个W.F.A时，它通过菜单按钮连接到单个第三个应用程序。出现，当第二个按钮被点击时，第二个W.F.A.出现。 现在发生的事情是，当点击第一个按钮时，它会加载所需的窗体，但在此之后，当单击第二个按钮时，第二个窗口形式与第一个窗口重叠，而不会破坏第一个窗口。我需要的是，无论何时加载新的窗体，它都应该破坏以前的窗体。我希望，我清楚自己。我能做些什么来实现这个目标？ 这是我的代码？
//something.Designer.cs
namespace Demo
{
partial class Demo
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#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>
///
private void InitializeComponent()
{
this.menuStrip1 = new System.Windows.Forms.MenuStrip();
this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.enterDataToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.showDataToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.label9 = new System.Windows.Forms.Label();
this.menuStrip1.SuspendLayout();
this.SuspendLayout();
//
// menuStrip1
//
this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.fileToolStripMenuItem});
this.menuStrip1.Location = new System.Drawing.Point(0, 0);
this.menuStrip1.Name = "menuStrip1";
this.menuStrip1.Size = new System.Drawing.Size(426, 24);
this.menuStrip1.TabIndex = 0;
this.menuStrip1.Text = "menuStrip1";
//
// fileToolStripMenuItem
//
this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.enterDataToolStripMenuItem,
this.showDataToolStripMenuItem,
this.toolStripSeparator1,
this.exitToolStripMenuItem});
this.fileToolStripMenuItem.Name = "fileToolStripMenuItem";
this.fileToolStripMenuItem.Size = new System.Drawing.Size(37, 20);
this.fileToolStripMenuItem.Text = "File";
//
// enterDataToolStripMenuItem
//
this.enterDataToolStripMenuItem.Name = "enterDataToolStripMenuItem";
this.enterDataToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
this.enterDataToolStripMenuItem.Text = "Enter Data";
this.enterDataToolStripMenuItem.Click += new System.EventHandler(this.enterDataToolStripMenuItem_Click);
//
// showDataToolStripMenuItem
//
this.showDataToolStripMenuItem.Name = "showDataToolStripMenuItem";
this.showDataToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
this.showDataToolStripMenuItem.Text = "Show Data";
this.showDataToolStripMenuItem.Click += new System.EventHandler(this.showDataToolStripMenuItem_Click);
//
// toolStripSeparator1
//
this.toolStripSeparator1.Name = "toolStripSeparator1";
this.toolStripSeparator1.Size = new System.Drawing.Size(149, 6);
//
// exitToolStripMenuItem
//
this.exitToolStripMenuItem.Name = "exitToolStripMenuItem";
this.exitToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
this.exitToolStripMenuItem.Text = "Exit";
this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click);
//
// label9
//
this.label9.AutoSize = true;
this.label9.Font = new System.Drawing.Font("Microsoft Sans Serif", 72F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label9.Location = new System.Drawing.Point(131, 118);
this.label9.Name = "label9";
this.label9.Size = new System.Drawing.Size(170, 108);
this.label9.TabIndex = 1;
this.label9.Text = "ZK";
//
// Demo
//
this.BackColor = System.Drawing.SystemColors.HotTrack;
this.ClientSize = new System.Drawing.Size(426, 324);
this.Controls.Add(this.label9);
this.Controls.Add(this.menuStrip1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
this.MainMenuStrip = this.menuStrip1;
this.Name = "Demo";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "ZK";
this.menuStrip1.ResumeLayout(false);
this.menuStrip1.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout();
}
private void showData()
{
this.label9.Text = "";
this.label8 = new System.Windows.Forms.Label();
this.studentData = new System.Windows.Forms.DataGridView();
this.studentID = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.gNo = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.studName = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.fathName = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.mobNum = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.dOBirth = new System.Windows.Forms.DataGridViewTextBoxColumn();
((System.ComponentModel.ISupportInitialize)(this.studentData)).BeginInit();
this.SuspendLayout();
//
// label8
//
this.label8.AutoSize = true;
this.label8.Font = new System.Drawing.Font("Microsoft Sans Serif", 48F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label8.Location = new System.Drawing.Point(267, 35);
this.label8.Name = "label8";
this.label8.Size = new System.Drawing.Size(116, 73);
this.label8.TabIndex = 0;
this.label8.Text = "ZK";
this.label8.TextAlign = System.Drawing.ContentAlignment.TopCenter;
//
// studentData
//
this.studentData.AllowUserToAddRows = false;
this.studentData.BackgroundColor = System.Drawing.SystemColors.Highlight;
this.studentData.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.studentData.CellBorderStyle = System.Windows.Forms.DataGridViewCellBorderStyle.Raised;
this.studentData.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.studentData.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
this.studentID,
this.gNo,
this.studName,
this.fathName,
this.mobNum,
this.dOBirth});
this.studentData.EditMode = System.Windows.Forms.DataGridViewEditMode.EditProgrammatically;
this.studentData.Location = new System.Drawing.Point(12, 144);
this.studentData.Name = "studentData";
this.studentData.ReadOnly = true;
this.studentData.RowHeadersVisible = false;
this.studentData.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
this.studentData.Size = new System.Drawing.Size(618, 365);
this.studentData.TabIndex = 1;
//
// studentID
//
this.studentID.HeaderText = "Student ID";
this.studentID.Name = "studentID";
this.studentID.ReadOnly = true;
//
// gNo
//
this.gNo.HeaderText = "Gr. No.";
this.gNo.Name = "gNo";
this.gNo.ReadOnly = true;
//
// studName
//
this.studName.HeaderText = "Student Name";
this.studName.Name = "studName";
this.studName.ReadOnly = true;
//
// fathName
//
this.fathName.HeaderText = "Father Name";
this.fathName.Name = "fathName";
this.fathName.ReadOnly = true;
//
// mobNum
//
this.mobNum.HeaderText = "Mobile No";
this.mobNum.Name = "mobNum";
this.mobNum.ReadOnly = true;
//
// dOBirth
//
this.dOBirth.HeaderText = "Date Of Birth";
this.dOBirth.Name = "dOBirth";
this.dOBirth.ReadOnly = true;
//
// Demo
//
this.BackColor = System.Drawing.SystemColors.HotTrack;
this.ClientSize = new System.Drawing.Size(642, 521);
this.Controls.Add(this.studentData);
this.Controls.Add(this.label8);
this.ForeColor = System.Drawing.SystemColors.Desktop;
this.Name = "Demo";
this.ShowIcon = false;
this.Text = "ZK";
this.Load += new System.EventHandler(this.fillTable);
((System.ComponentModel.ISupportInitialize)(this.studentData)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
private void EnterData()
{
this.label9.Text = "";
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.label4 = new System.Windows.Forms.Label();
this.label5 = new System.Windows.Forms.Label();
this.label6 = new System.Windows.Forms.Label();
this.label7 = new System.Windows.Forms.Label();
this.grNo = new System.Windows.Forms.TextBox();
this.studentName = new System.Windows.Forms.TextBox();
this.fatherName = new System.Windows.Forms.TextBox();
this.mobNo = new System.Windows.Forms.TextBox();
this.dob = new System.Windows.Forms.DateTimePicker();
this.saveBtn = new System.Windows.Forms.Button();
this.status = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// label1
//
this.label1.AutoSize = true;
this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 48F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label1.Location = new System.Drawing.Point(234, 24);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(116, 73);
this.label1.TabIndex = 0;
this.label1.Text = "ZK";
this.label1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
//
// label2
//
this.label2.AutoSize = true;
this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label2.Location = new System.Drawing.Point(106, 195);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(70, 24);
this.label2.TabIndex = 2;
this.label2.Text = "Gr. No.";
//
// label3
//
this.label3.AutoSize = true;
this.label3.Font = new System.Drawing.Font("Microsoft Sans Serif", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label3.Location = new System.Drawing.Point(225, 111);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(125, 29);
this.label3.TabIndex = 3;
this.label3.Text = "Enter Data";
//
// label4
//
this.label4.AutoSize = true;
this.label4.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label4.Location = new System.Drawing.Point(106, 358);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(110, 24);
this.label4.TabIndex = 4;
this.label4.Text = "Date of Birth";
//
// label5
//
this.label5.AutoSize = true;
this.label5.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label5.Location = new System.Drawing.Point(106, 317);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(102, 24);
this.label5.TabIndex = 5;
this.label5.Text = "Mobile No.";
//
// label6
//
this.label6.AutoSize = true;
this.label6.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label6.Location = new System.Drawing.Point(106, 279);
this.label6.Name = "label6";
this.label6.Size = new System.Drawing.Size(133, 24);
this.label6.TabIndex = 6;
this.label6.Text = "Father\'s Name";
//
// label7
//
this.label7.AutoSize = true;
this.label7.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label7.Location = new System.Drawing.Point(106, 236);
this.label7.Name = "label7";
this.label7.Size = new System.Drawing.Size(143, 24);
this.label7.TabIndex = 7;
this.label7.Text = "Student\'s Name";
//
// grNo
//
this.grNo.Font = new System.Drawing.Font("Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.grNo.Location = new System.Drawing.Point(274, 195);
this.grNo.Name = "grNo";
this.grNo.Size = new System.Drawing.Size(236, 24);
this.grNo.TabIndex = 8;
//
// studentName
//
this.studentName.Font = new System.Drawing.Font("Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.studentName.Location = new System.Drawing.Point(274, 236);
this.studentName.Name = "studentName";
this.studentName.Size = new System.Drawing.Size(236, 24);
this.studentName.TabIndex = 9;
//
// fatherName
//
this.fatherName.Font = new System.Drawing.Font("Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.fatherName.Location = new System.Drawing.Point(274, 279);
this.fatherName.Name = "fatherName";
this.fatherName.Size = new System.Drawing.Size(236, 24);
this.fatherName.TabIndex = 10;
//
// mobNo
//
this.mobNo.Font = new System.Drawing.Font("Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.mobNo.Location = new System.Drawing.Point(274, 317);
this.mobNo.Name = "mobNo";
this.mobNo.Size = new System.Drawing.Size(236, 24);
this.mobNo.TabIndex = 11;
//
// dob
//
this.dob.CalendarFont = new System.Drawing.Font("Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.dob.Location = new System.Drawing.Point(274, 361);
this.dob.Name = "dob";
this.dob.Size = new System.Drawing.Size(236, 20);
this.dob.TabIndex = 12;
//
// saveBtn
//
this.saveBtn.FlatAppearance.BorderColor = System.Drawing.SystemColors.ActiveCaptionText;
this.saveBtn.FlatAppearance.BorderSize = 5;
this.saveBtn.FlatAppearance.MouseDownBackColor = System.Drawing.SystemColors.ButtonHighlight;
this.saveBtn.FlatAppearance.MouseOverBackColor = System.Drawing.SystemColors.Desktop;
this.saveBtn.Font = new System.Drawing.Font("Microsoft Sans Serif", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.saveBtn.Location = new System.Drawing.Point(413, 399);
this.saveBtn.Name = "saveBtn";
this.saveBtn.Size = new System.Drawing.Size(97, 36);
this.saveBtn.TabIndex = 13;
this.saveBtn.Text = "Save";
this.saveBtn.UseVisualStyleBackColor = true;
this.saveBtn.Click += new System.EventHandler(this.saveBtn_Click);
//
// status
//
this.status.AutoSize = true;
this.status.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.status.Location = new System.Drawing.Point(11, 153);
this.status.Name = "status";
this.status.Size = new System.Drawing.Size(165, 20);
this.status.TabIndex = 14;
this.status.Text = " ";
//
// Demo
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.AutoSize = true;
this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
this.BackColor = System.Drawing.SystemColors.HotTrack;
this.ClientSize = new System.Drawing.Size(620, 463);
this.Controls.Add(this.status);
this.Controls.Add(this.saveBtn);
this.Controls.Add(this.dob);
this.Controls.Add(this.mobNo);
this.Controls.Add(this.fatherName);
this.Controls.Add(this.studentName);
this.Controls.Add(this.grNo);
this.Controls.Add(this.label7);
this.Controls.Add(this.label6);
this.Controls.Add(this.label5);
this.Controls.Add(this.label4);
this.Controls.Add(this.label3);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
this.Name = "Demo";
this.Text = "ZK";
//this.Load += new System.EventHandler(this.Demo_Load);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.Label label6;
private System.Windows.Forms.Label label7;
private System.Windows.Forms.TextBox grNo;
private System.Windows.Forms.TextBox studentName;
private System.Windows.Forms.TextBox fatherName;
private System.Windows.Forms.TextBox mobNo;
private System.Windows.Forms.DateTimePicker dob;
private System.Windows.Forms.Button saveBtn;
private System.Windows.Forms.Label status;
private System.Windows.Forms.Label label8;
private System.Windows.Forms.DataGridView studentData;
private System.Windows.Forms.DataGridViewTextBoxColumn studentID;
private System.Windows.Forms.DataGridViewTextBoxColumn gNo;
private System.Windows.Forms.DataGridViewTextBoxColumn studName;
private System.Windows.Forms.DataGridViewTextBoxColumn fathName;
private System.Windows.Forms.DataGridViewTextBoxColumn mobNum;
private System.Windows.Forms.DataGridViewTextBoxColumn dOBirth;
private System.Windows.Forms.MenuStrip menuStrip1;
private System.Windows.Forms.ToolStripMenuItem fileToolStripMenuItem;
private System.Windows.Forms.ToolStripMenuItem enterDataToolStripMenuItem;
private System.Windows.Forms.ToolStripMenuItem showDataToolStripMenuItem;
private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
private System.Windows.Forms.ToolStripMenuItem exitToolStripMenuItem;
private System.Windows.Forms.Label label9;
}
}
//something.cs
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace Demo
{
public partial class Demo : Form
{
protected class Details
{
private List<NameValueCollection> detail = new List<NameValueCollection>();
public void addDetails(string id,string gr,string sName,string fName,string mob,string dob)
{
NameValueCollection dict = new NameValueCollection();
dict["id"] = id;
dict["GrNo"] = gr;
dict["sName"] = sName;
dict["fName"] = fName;
dict["mob"] = mob;
dict["dob"] = dob;
detail.Add(dict);
}
public List<NameValueCollection> getDetails()
{
return detail;
}
}
public Demo()
{
InitializeComponent();
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Close();
}
private void saveBtn_Click(object sender, EventArgs e)
{
if(grNo.Text != "")
{
if(studentName.Text != "")
{
if(fatherName.Text != "")
{
if(mobNo.Text != "")
{
bool isDone = saveAction(grNo.Text, studentName.Text, fatherName.Text, mobNo.Text, dob.Value);
if(isDone)
{
MessageBox.Show("Record Successfully added!");
}
}
}
}
}
}
private bool saveAction(string gr, string sName, string fName, string mob, DateTime dob)
{
string sqlDetails = "Data Source=DESKTOP-DBJ8T78\\sql;Initial Catalog=Demo;User ID=sa;Password=sample";
SqlConnection dbHandle = new SqlConnection(sqlDetails);
try
{
dbHandle.Open();
string sql = "SELECT * FROM studentDetails WHERE GrNo='"+gr+"'";
SqlCommand result = new SqlCommand(sql, dbHandle);
SqlDataReader row = result.ExecuteReader();
if(!row.Read())
{
row.Close();
result.Dispose();
sql = "INSERT INTO studentDetails (GrNo,StudentName,FatherName,MobileNo,DOB) VALUES ('" + gr + "','" + sName + "','" + fName + "','" + mob + "','" + dob + "')";
result = new SqlCommand(sql, dbHandle);
result.ExecuteNonQuery();
}
else
{
status.Text = "Gr. No. '" + gr + "' Already Exists!";
row.Close();
result.Dispose();
dbHandle.Close();
return false;
}
row.Close();
result.Dispose();
dbHandle.Close();
return true;
}
catch(Exception e)
{
status.Text = "Connection to the Database Failed! Please Contact Administrator for further details. \n" + e;
return false;
}
}
private void fillTable(object sender,EventArgs ev)
{
string sqlDetails = "Data Source=DESKTOP-DBJ8T78\\sql;Initial Catalog=Demo;User ID=sa;Password=sample";
SqlConnection dbHandle = new SqlConnection(sqlDetails);
try
{
dbHandle.Open();
string sql = "SELECT * FROM studentDetails";
SqlCommand result = new SqlCommand(sql, dbHandle);
SqlDataReader row = result.ExecuteReader();
Details student = new Details();
while(row.Read())
{
student.addDetails(row.GetValue(0).ToString(),row.GetValue(1).ToString(), row.GetValue(2).ToString(), row.GetValue(3).ToString(), row.GetValue(4).ToString(), row.GetValue(5).ToString());
}
List<NameValueCollection> sDetails = student.getDetails();
foreach(NameValueCollection data in sDetails)
{
this.studentData.Rows.Add(data["id"], data["GrNo"], data["sName"], data["fName"], data["mob"], data["dob"]);
}
row.Close();
result.Dispose();
dbHandle.Close();
}
catch(Exception e)
{
MessageBox.Show("Some Error Occured! Please Contact Administrator.\n" + e);
}
}
private void enterDataToolStripMenuItem_Click(object sender, EventArgs e)
{
this.EnterData();
}
private void showDataToolStripMenuItem_Click(object sender, EventArgs e)
{
this.showData();
}
}
}
答案 0 :(得分：0)
我明白你要说的是什么 每个表格在收盘后都有一个返回值。当您调用MessageBox.Show（）然后按“确定”按钮关闭它时，您可以检查返回值（DialogResult）并执行一些操作：
if (MessageBox.Show("done") == DialogResult.OK)
this.Close();
答案 1 :(得分：0)
看来你所做的是创建其他winforms作为原始Form1的一部分。您应该做的是为EnterData和SaveData创建 new 表单。
右键单击项目名称，然后选择＆＃34;添加＆＃34; - ＆GT; ＆＃34;新项目......＆＃34;从弹出菜单中。这将带您进入“添加新项”对话框。选择＆＃34; Winfows表格＆＃34;。在名称框中，将其命名为EnterForm或SaveForm，无论您正在执行哪个操作。然后，每个表单的初始化将在他们自己的类中进行。
然后，当单击工具栏时，您将调用单个表单：
enterForm = new EnterForm();
if (saveForm != null)
{
saveForm.Close();
saveForm = null;
}
enterForm.Show();
这只是一个基本的失败。我建议您通过一些基本的Winforms培训来熟悉范例。