.net - ColumnHeader.Name 在运行时产生一个空字符串

Question

在 Winforms 项目 (Visual Studio 2010) 中使用ListView控件时，我注意到虽然我在列设计器中为其 ColumnHeaders的NamecolumnHeaderFoo.Name属性分配了有意义的值，但调用在运行时会返回一个空字符串。这与其他控件的行为不同，例如在同一表单上，buttonOK.Nameyield "buttonOK"。

这是我设置值的地方：

或者在这里，结果相同：

这是一个包含一列的 ListView 表单的设计器生成的代码：

namespace ColumnDemo
{
    partial class Form1
    {
        /// <summary>
        /// Erforderliche Designervariable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Verwendete Ressourcen bereinigen.
        /// </summary>
        /// <param name="disposing">True, wenn verwaltete Ressourcen gelöscht werden sollen; andernfalls False.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Vom Windows Form-Designer generierter Code

        /// <summary>
        /// Erforderliche Methode für die Designerunterstützung.
        /// Der Inhalt der Methode darf nicht mit dem Code-Editor geändert werden.
        /// </summary>
        private void InitializeComponent()
        {
            this.listView1 = new System.Windows.Forms.ListView();
            this.columnHeaderTest = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // listView1
            // 
            this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
            this.columnHeaderTest});
            this.listView1.Location = new System.Drawing.Point(12, 12);
            this.listView1.Name = "listView1";
            this.listView1.Size = new System.Drawing.Size(494, 149);
            this.listView1.TabIndex = 0;
            this.listView1.UseCompatibleStateImageBehavior = false;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(411, 167);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(95, 43);
            this.button1.TabIndex = 1;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(518, 221);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.listView1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.ListView listView1;
        private System.Windows.Forms.ColumnHeader columnHeaderTest;
        private System.Windows.Forms.Button button1;
    }
}

我在按钮单击时添加了一些输出：

private void button1_Click(object sender, EventArgs e)
{
    Console.WriteLine("Button: " + button1.Name);
    Console.WriteLine("Column: " + columnHeaderTest.Name);
}

结果输出是：

Button: button1 
Column:

另一个有趣的事实是，项目文件中没有一个包含我在任何地方以字符串常量形式给出的“名称”值；似乎 VS 专门使用这个值来命名成员变量。

如果我将Name属性设置为运行时，则该值将按预期保留。似乎我总是错误地假设表单设计器使用标记为“名称”的字段来分配名称属性。

有没有办法在设计时明确定义控件的名称（不是变量的名称）？

Answer 1

你在哪里设置这个

 this.button1.Name = "button1"; // This value is Set !!!!!
  this.columnHeaderTest.Name ----> this value is not set that's why you are getting empty.
this.columnHeaderTest.Name = "Test";

当我设置这个时，我得到了正确的值......

 private void button1_Click(object sender, EventArgs e)
    {
        Console.WriteLine("Button: " + button1.Name);
        Console.WriteLine("Column: " + columnHeaderTest.Name);
    }
columnHeaderTest.Name
"Test"


 as you showed in screenshot . just change the " columnHeaderTest to Testing " .... this is 
 Control Name ... you have define your controls Display name that is 

 Testing.Name = "NewColumn";

然后你会得到这个名字............检查这个