/// <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 ;
}

// 调用

for ( int i = 1 ; i <= 30 ; i ++ )
{
string _box = " b " + i.ToString();
TextBox tb = (TextBox) this .findControl(groupBox2, _box);
tb.Text = i.ToString();
}