Question

我有<条码>DataGrid view1和ListView,而且我从未选择过名单(我通过<条码>)。清单: 列入<代码>DataGrid的物项,根据该项目

我已经写过这样的一些法典。

 private void listview_selectedindexchanged(object sender event args)
 {
     if (listview.SelectedItems.Count > 0 && listview.SelectedItems[0].Group.Name == "abc")
     {
            if(lstview.SelectedItems[0].Text.ToString() == "sfs")
            {
              method1();
            }
            else
            {
                // datagrid view1 binding
               blah.....
             }
     }
     if (lstview.SelectedItems.Count > 0 && lstview.SelectedItems[0].Group.Name == "def")
     {

           if(lstview.SelectedItems[0].Text.ToString() == "xyz")
           {
               method 1();
           }
           if(lstview.SelectedItems[0].Text.ToString() == "ghi")
           {
               method 2(a,b);
           }
           if(lstview.SelectedItems[0].Text.ToString() == "jkl")
           {
               method 2(c,d);
           }
           if(lstview.SelectedItems[0].Text.ToString() == "mno")
           {
               method 3();
           }

       }
   }  
private void method 1()
{ 
  // datagrid view1 binding
    blahh     
}
private void method 2(e,g)
{
  // datagrid view1 binding
  blah....blah..
}
private void method 3()
{

    // datagrid view1 binding
}

I have done it like above ... I think this is not an efficient way to do the coding. and this code consisits of a lot of repeated lines, is there any way to refractor this code to a small bunch of code ...... in order improve the efficiency?

任何提高守则效率的想法和样本都对我有帮助。

许多预告......。

我正在使用C#和WinForms的申请。

Answer 1

你可以把一名代表从名单上删除。并且,在选用封顶物品时也称呼。例如,你将填写你的名单箱如下:

ListViewItem item = new ListViewItem("abc");
item.Tag = new Delegate(method1);
lstview.Items.Add(item);

现在,在选定该项目时,你执行这样的方法:

private void listview_selectedindexchanged(object sender event args)
{
    ((Delegate)lstview.SelectedItems[0].Tag)(); // this will execute method1 if the item with text "abc" gets selected
}

NOTE: ! have not tested this code, but something along those lines should work and you don t have to write the If-statement, you only have to construct the items correctly.

还指出,这或许难以为新加入该法典的人读懂。

Answer 2

你可以很容易地找到一种新的方法,以“数据网观点1具有约束力”。因此,这种方法是从所有需要采用具有约束力方法中要求的。

友情链接