c# – 如何从网格视图更新事件中的gridview编辑事件中获取保存在字符串中的值？

在gridview编辑事件我有：

string name = GridView1.Rows[e.NewEditIndex].Cells[1].Text;
string subname = GridView1.Rows[e.NewEditIndex].Cells[2].Text;

我想从行更新事件gridview中的变量中获取这些值,但我不知道如何访问它们.

谢谢

解决方法

使用 RowIndex属性

protected void GridView1_RowUpdating(object sender,GridViewUpdateEventArgs e)
{    
    GridViewRow row = GridView1.Rows[e.RowIndex];
    string name     = row.Cells[1].Text;
    string subname  = row.Cells[2].Text;
}

要获取更新行的旧值/新值,还可以使用GridViewUpdateEventArgs.OldValues和GridViewUpdateEventArgs.NewValues词典.

protected void GridView1_RowUpdating(object sender,GridViewUpdateEventArgs e)
{    
    string oldName     = e.OldValues["Name"]; 
    string oldSubname  = e.OldValues["SubName"];
    string newName     = e.NewValues["Name"];
    string newSubname  = e.NewValues["SubName"];
}

仅检测更改的值(未测试)：

var changed = new Dictionary<Object,Object>();
foreach (DictionaryEntry entry in e.NewValues)
{
    if (e.OldValues[entry.Key] != entry.Value)
    {
        changed.Add(entry.Key,entry.Value);
    }
}

或者使用LINQ：

changed = e.NewValues.Cast<DictionaryEntry>()
          .Where(entry => entry.Value != e.OldValues[entry.Key])
          .ToDictionary(entry => entry.Key,entry => entry.Value);

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowupdating.aspx