C#-泛型的使用

因为最近要做个小的WinForm程序，当窗口打开时，初始下拉框数据。用到了泛型方法。还是很方便的。

效果：

具体如下：

# 原代码
/// <summary>
/// 初始化下拉框
/// </summary>
private void InitCbb()
{
    List<BusiDomain> list = busiDomainService.GetAll();
    list.Insert(0, new BusiDomain { BusiDomainId = -1, BusiDomainName = "不详" });

    this.cbbBusiDomain.DataSource = list;
    this.cbbBusiDomain.DisplayMember = "BusiDomainName";
    this.cbbBusiDomain.ValueMember = "BusiDomainId";
    this.cbbBusiDomain.SelectedValue = -1;            
}

--------------------------------------        
# 提炼成通用方法
private void InitCbbData<T>(List<T> list, T newObj, string displayMember, string valueMember)
{
    list.Insert(0, newObj);

    this.cbbBusiDomain.DataSource = list;
    this.cbbBusiDomain.DisplayMember = displayMember;
    this.cbbBusiDomain.ValueMember = valueMember;
    this.cbbBusiDomain.SelectedValue = -1;
}
-------------------------------------- 
修改之后的方法：2行搞定
private void InitCbb()
{
    List<BusiDomain> list = busiDomainService.GetAll()
    BusiDomain newObj = new BusiDomain { BusiDomainId = -1, BusiDomainName = "不详" };
    InitCbbData<BusiDomain>(list, newObj, "BusiDomainName", "BusiDomainId");
}

记下来省的忘记。