学步园

//<summary> 
/// 在winform中查找控件 
///</summary> 
///<param ></param> 
///<param ></param> 
///<returns></returns> 
private System.Windows.Forms.Control findControl(System.Windows.Forms.Control control, string controlName) 
{ 
    Control c1; 
    foreach (Control c in control.Controls) 
    { 
        if (c.Name == controlName) 
        { 
            return c; 
        } 
        else if (c.Controls.Count >0) 
        { 
            c1 = findControl(c, controlName); 
            if (c1 !=null) 
            { 
                return c1; 
            } 
        } 
    } 
    return null; 
} 


具体调用：

[csharp]
private void button1_Click(object sender, EventArgs e) 
       { 
           //调用 
 
           for (int i = 1; i <= 30; i++) 
           { 
               string _box = "b" + i.ToString(); 
               if (this.findControl(groupBox1, _box) != null) 
               { 
                   TextBox tb = (TextBox)this.findControl(groupBox1, _box); 
                   tb.Text = i.ToString(); 
               } 
           }  
 
       }