如何在Visual Studio中的部分類中的cll方法

Question

這是在Visual Studio Web應用程序中用C＃調用的file.cs。我想在file.designer.cs中調用函數ReadOnlySetting（）。我試過在像這個ReadOnlySetting（）這樣的「初始化組件」之後調用它。我收到錯誤「必須返回一個類型」

namespace WindowsFormsApplication7 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void button1_Click(object sender, EventArgs e) 
     { 
      SqlConnection con = new SqlConnection("Data Source=LENOVO-  PC;Integrated Security=True"); 
      con.Open(); 
      SqlCommand sc = new SqlCommand("insert intp Emp values('" +  textBox2.Text + "'," + textBox1.Text + ",'" + textBox3.Text + "','" + textBox4.Text + "'," + textBox5.Text + ");", con); 
      object o = sc.ExecuteNonQuery(); 
      MessageBox.Show(o+ " :Record has been inserted"); 
      con.Close(); 
     } 

     //sender controls what the action is for 
     //EventArgs is the argument 
     private void button2_Click(object sender, EventArgs e) 
     { 
      Application.Exit(); 
     } 

     **private void ReadOnlySetting()** 
     { 
      this.textBox2.ReadOnly = true; 
     } 

     public static void main(string[] args) 
     { 
      Application.Run(new Form1()); 
     } 

    } 
} 

這是我file.designer.cs

namespace WindowsFormsApplication7 
{ 
    partial class Form1 
    { 
     /// <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.components = new System.ComponentModel.Container(); 
      this.dataSet1 = new WindowsFormsApplication7.DataSet1(); 
      this.dataSet1BindingSource = new System.Windows.Forms.BindingSource(this.components); 
      this.label1 = new System.Windows.Forms.Label(); 
      this.textBox2 = new System.Windows.Forms.TextBox(); 
      this.label2 = new System.Windows.Forms.Label(); 
      this.textBox3 = new System.Windows.Forms.TextBox(); 
      this.label3 = new System.Windows.Forms.Label(); 
      this.textBox1 = new System.Windows.Forms.TextBox(); 
      this.label4 = new System.Windows.Forms.Label(); 
      this.textBox4 = new System.Windows.Forms.TextBox(); 
      this.textBox5 = new System.Windows.Forms.TextBox(); 
      this.label5 = new System.Windows.Forms.Label(); 
      this.button1 = new System.Windows.Forms.Button(); 
      this.button2 = new System.Windows.Forms.Button(); 
      ((System.ComponentModel.ISupportInitialize)(this.dataSet1)).BeginInit(); 
      ((System.ComponentModel.ISupportInitialize)(this.dataSet1BindingSource)).BeginInit(); 
      this.SuspendLayout(); 
      this.textBox2.ReadOnly = true; 
      // 
      // dataSet1 
      // 
      this.dataSet1.DataSetName = "DataSet1"; 
      this.dataSet1.SchemaSerializationMode = System.Data.SchemaSerializationMode.IncludeSchema; 
      // 
      // dataSet1BindingSource 
      // 
      this.dataSet1BindingSource.DataSource = this.dataSet1; 
      this.dataSet1BindingSource.Position = 0; 
      // 
      // label1 
      // 
      this.label1.AutoSize = true; 
      this.label1.Location = new System.Drawing.Point(45, 75); 
      this.label1.Name = "label1"; 
      this.label1.Size = new System.Drawing.Size(35, 13); 
      this.label1.TabIndex = 3; 
      this.label1.Text = "Name"; 
      // 
      // textBox2 
      // 
      this.textBox2.Location = new System.Drawing.Point(86, 72); 
      this.textBox2.Name = "textBox2"; 
      this.textBox2.Size = new System.Drawing.Size(100, 20); 
      this.textBox2.TabIndex = 4; 
      // 
      // label2 
      // 
      this.label2.AutoSize = true; 
      this.label2.Location = new System.Drawing.Point(45, 156); 
      this.label2.Name = "label2"; 
      this.label2.Size = new System.Drawing.Size(25, 13); 
      this.label2.TabIndex = 3; 
      this.label2.Text = "Sex"; 
      // 
      // textBox3 
      // 
      this.textBox3.Location = new System.Drawing.Point(86, 153); 
      this.textBox3.Name = "textBox3"; 
      this.textBox3.Size = new System.Drawing.Size(100, 20); 
      this.textBox3.TabIndex = 4; 
      // 
      // label3 
      // 
      this.label3.AutoSize = true; 
      this.label3.Location = new System.Drawing.Point(45, 112); 
      this.label3.Name = "label3"; 
      this.label3.Size = new System.Drawing.Size(26, 13); 
      this.label3.TabIndex = 3; 
      this.label3.Text = "Age"; 
      // 
      // textBox1 
      // 
      this.textBox1.Location = new System.Drawing.Point(86, 109); 
      this.textBox1.Name = "textBox1"; 
      this.textBox1.Size = new System.Drawing.Size(100, 20); 
      this.textBox1.TabIndex = 4; 
      // 
      // label4 
      // 
      this.label4.AutoSize = true; 
      this.label4.Location = new System.Drawing.Point(45, 195); 
      this.label4.Name = "label4"; 
      this.label4.Size = new System.Drawing.Size(45, 13); 
      this.label4.TabIndex = 3; 
      this.label4.Text = "Address"; 
      // 
      // textBox4 
      // 
      this.textBox4.Location = new System.Drawing.Point(86, 192); 
      this.textBox4.Name = "textBox4"; 
      this.textBox4.ReadOnly = true; 
      this.textBox4.Size = new System.Drawing.Size(100, 20); 
      this.textBox4.TabIndex = 4; 
      // 
      // textBox5 
      // 
      this.textBox5.Location = new System.Drawing.Point(86, 228); 
      this.textBox5.Name = "textBox5"; 
      this.textBox5.Size = new System.Drawing.Size(100, 20); 
      this.textBox5.TabIndex = 6; 
      // 
      // label5 
      // 
      this.label5.AutoSize = true; 
      this.label5.Location = new System.Drawing.Point(45, 231); 
      this.label5.Name = "label5"; 
      this.label5.Size = new System.Drawing.Size(58, 13); 
      this.label5.TabIndex = 5; 
      this.label5.Text = "Phone No."; 
      // 
      // button1 
      // 
      this.button1.Location = new System.Drawing.Point(163, 278); 
      this.button1.Name = "button1"; 
      this.button1.Size = new System.Drawing.Size(75, 23); 
      this.button1.TabIndex = 7; 
      this.button1.Text = "Close"; 
      this.button1.UseVisualStyleBackColor = true; 
      this.button1.Click += new System.EventHandler(this.button1_Click); 
      // 
      // button2 
      // 
      this.button2.Location = new System.Drawing.Point(35, 278); 
      this.button2.Name = "button2"; 
      this.button2.Size = new System.Drawing.Size(75, 23); 
      this.button2.TabIndex = 8; 
      this.button2.Text = "Submit"; 
      this.button2.UseVisualStyleBackColor = true; 
      // 
      // Form1 
      // 
      this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 
      this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 
      this.ClientSize = new System.Drawing.Size(420, 380); 
      this.Controls.Add(this.button2); 
      this.Controls.Add(this.button1); 
      this.Controls.Add(this.textBox5); 
      this.Controls.Add(this.label5); 
      this.Controls.Add(this.textBox4); 
      this.Controls.Add(this.textBox3); 
      this.Controls.Add(this.label4); 
      this.Controls.Add(this.label2); 
      this.Controls.Add(this.textBox1); 
      this.Controls.Add(this.label3); 
      this.Controls.Add(this.textBox2); 
      this.Controls.Add(this.label1); 
      this.Name = "Form1"; 
      this.Text = "Form1"; 
      ((System.ComponentModel.ISupportInitialize)(this.dataSet1)).EndInit(); 
      ((System.ComponentModel.ISupportInitialize)(this.dataSet1BindingSource)).EndInit(); 
      this.ResumeLayout(false); 
      this.PerformLayout(); 

     } 



     #endregion 

     private System.Windows.Forms.BindingSource dataSet1BindingSource; 
     private DataSet1 dataSet1; 
     private System.Windows.Forms.Label label1; 
     private System.Windows.Forms.TextBox textBox2; 
     private System.Windows.Forms.Label label2; 
     private System.Windows.Forms.TextBox textBox3; 
     private System.Windows.Forms.Label label3; 
     private System.Windows.Forms.TextBox textBox1; 
     private System.Windows.Forms.Label label4; 
     private System.Windows.Forms.TextBox textBox4; 
     private System.Windows.Forms.TextBox textBox5; 
     private System.Windows.Forms.Label label5; 
     private System.Windows.Forms.Button button1; 
     private System.Windows.Forms.Button button2; 
    } 
} 

我沒有在那裏我可以有我的方法或如何調用它。

Answer 1

不要把它放在設計器中。只要您對錶單的設計進行更改，它就會被刪除。在InitializeComponent之後直接調用它。

public Form1() 
    { 
     InitializeComponent(); 
     ReadOnlySetting(); 
    }