如何在WinForms中显示显示轨迹栏值的工具提示

Question

我是C#和WinForms的新手,所以请原谅我这是一个新手问题.

我正在尝试向TrackBar控件添加一个工具提示,它会在您拖动时显示该栏的当前值.我已经实例化了一个ToolTip对象并尝试了以下处理程序代码,但它没有显示任何工具提示:

private void trackBar1_Scroll(object sender, EventArgs e)
{
   toolTip1.SetToolTip(trackBar1, trackBar1.Value.ToString());
}

Answer 1

Adam我刚刚实现了一个非常简单的版本,它完全符合预期......

这是用于比较的初始化代码

    private void InitializeComponent()
    {
        this.components = new System.ComponentModel.Container();
        this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
        this.trackBar1 = new System.Windows.Forms.TrackBar();
        ((System.ComponentModel.ISupportInitialize)(this.trackBar1)).BeginInit();
        this.SuspendLayout();
        // 
        // trackBar1
        // 
        this.trackBar1.Location = new System.Drawing.Point(12, 166);
        this.trackBar1.Name = "trackBar1";
        this.trackBar1.Size = new System.Drawing.Size(268, 42);
        this.trackBar1.TabIndex = 1;
        this.trackBar1.Scroll += new System.EventHandler(this.trackBar1_Scroll);
        // 
        // Form1
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(292, 273);
        this.Controls.Add(this.trackBar1);
        this.Name = "Form1";
        this.Text = "Form1";
        ((System.ComponentModel.ISupportInitialize)(this.trackBar1)).EndInit();
        this.ResumeLayout(false);
        this.PerformLayout();

    }

    private void trackBar1_Scroll(object sender, EventArgs e)
    {
        toolTip1.SetToolTip(trackBar1, trackBar1.Value.ToString());

    }

当我将股票代码移动到每个额外的增量时,它都有效...