#region ComboBox
#region Item
/// <summary>
/// ComboBox控件手动赋值,调用示范
/// ArrayList ArrL = new ArrayList();
/// ArrL.Add(new Item("A", "a"));
/// ComboBox.DataSource = ArrL;
/// ComboBox.DisplayMember= "Text";
/// ComboBox.ValueMember = "Value";
/// </summary>
public class Item
{
private string _Text;
private string _Value;
public Item(string sText, string sValue)
{
this._Text = sText;
this._Value = sValue;
}
public string Text
{
get
{
return _Text;
}
}
public string Value
{
get
{
return _Value ;
}
}
public override string ToString()
{
return this.Text + " - " + this.Value;
}
}
#endregion
#region ComboBoxValues
/// <summary>
/// 输入值对字符串,返回ComboBox实例
/// 调用示范:
/// ComboBoxValues cbv = new ComboBoxValues(txtSelect);
/// txtSelect = cbv.Add(ini.Read("Main","SelectText"),ini.Read("Main","SelectValue"),'*');
/// </summary>
public class ComboBoxValues
{
/// <summary>
/// 构造ComboBox控件实例以便返回该类型
/// </summary>
/// <param name="cb">ComboBox实例</param>
public ComboBoxValues(System.Windows.Forms.ComboBox cb)
{
_ComboBox = cb;
}
private System.Windows.Forms.ComboBox _ComboBox;
private string err;
/// <summary>
/// 错误提示,返回 null 为正常
/// </summary>
public string Err
{
get
{
return err;
}
}
/// <summary>
/// 增加ComboBox新项,返回ComboBox实例
/// </summary>
/// <param name="sText">以分割符分开的显示文本</param>
/// <param name="sValue">以分割符分开的值文本</param>
/// <param name="key">分割符,如: *</param>
/// <returns></returns>
public System.Windows.Forms.ComboBox Add(string sText, string sValue, char key)
{
err = null;
string[] arrText = sText.Split(key);
string[] arrValue = sValue.Split(key);
if(arrText.Length==arrValue.Length)
{
System.Collections.ArrayList arrl = new System.Collections.ArrayList();
for(int i=0;i<arrText.Length;i++)
{
arrl.Add(new Item(arrText[i], arrValue[i]));
}
_ComboBox.DataSource = arrl;
_ComboBox.DisplayMember= "Text";
_ComboBox.ValueMember = "Value";
}
else
{
err="Text与Value值对不等";
}
return _ComboBox;
}
}
#endregion
#endregion
很多人不知道怎样根据读取的value来选定列表，其实用
ComboBox.SelectedValue = "xxx"就可以选定的了。
