新手求助Datagrid获取值问题

[bincen2005]

Datagrid UpdateCommand

private void dataGrid1_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
string wareid=e.Item.Cells[2].Text;
string warename=((TextBox)e.Item.Cells[4].Controls[0]).Text;
SqlConnection mycon=new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
mycon.Open();
SqlCommand cmd=new SqlCommand("update ware set wareName='"+warename+"' where wareId='"+wareid+"'",mycon);
cmd.ExecuteNonQuery();
this.dataGrid1.EditItemIndex=-1;
this.DataGridBinder();

为什么warename获取的值是从从数据库读出的值，而不是修改后的值

[xzr2004]

Datagrid UpdateCommand

private void dataGrid1_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
string wareid=e.Item.Cells[2].Text;
string warename=((TextBox)e.Item.Cells[4].Controls[0]).Text;
SqlConnection mycon=new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
mycon.Open();
SqlCommand cmd=new SqlCommand("update ware set wareName='"+warename+"' where wareId="+wareid+"",mycon);
cmd.ExecuteNonQuery();
mycon.Close()
this.dataGrid1.EditItemIndex=-1;
this.DataGridBinder();

[qi_ting]

一般在获取值的时候,是一定要加一句话,if(!IsPostBack){},应该是这样的:
private void dataGrid1_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
if(!IsPostBack)
{
string wareid=e.Item.Cells[2].Text;
string warename=((TextBox)e.Item.Cells[4].Controls[0]).Text;
SqlConnection mycon=new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
mycon.Open();
SqlCommand cmd=new SqlCommand("update ware set wareName='"+warename+"' where wareId='"+wareid+"'",mycon);
cmd.ExecuteNonQuery();
this.dataGrid1.EditItemIndex=-1;
this.DataGridBinder();
}
}

[bincen2005]

试了，还是一样

[bincen2005]

发现问题所在，原来没有ispostback

[wxshzf]

又学到一招