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ASP.NET动态网页制作初学者备忘录

 一位ASP.net初学者学习过程中整理的备忘录,包括“打开新的窗口并传送参数,为按钮添加对话框,删除表格选定记录,删除表格记录警告”等等常见问题的解决方法。

1. 打开新的窗口并传送参数:

  传送参数:

response.write("<script>window.open
('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>")

  接收参数:

string a  = Request.QueryString("id");
string b  = Request.QueryString("id1");

2.为按钮添加对话框

Button1.Attributes.Add("onclick","return confirm('确认?')");
button.attributes.add("onclick","if(confirm('are you sure...?'))
{return true;}else{return false;}")

3.删除表格选定记录

int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()

4.删除表格记录警告

private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
{
 switch(e.Item.ItemType)
 {
  case ListItemType.Item :
  case ListItemType.AlternatingItem :
  case ListItemType.EditItem:
    TableCell myTableCell;
    myTableCell = e.Item.Cells[14];
    LinkButton myDeleteButton ;
    myDeleteButton = (LinkButton)myTableCell.Controls[0];
    myDeleteButton.Attributes.Add
("onclick","return confirm('您是否确定要删除这条信息');");
    break;
  default:
   break;
 }
}

5.点击表格行链接另一页

private void grdCustomer_ItemDataBound
(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
//点击表格打开
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
 e.Item.Attributes.Add("onclick","window.open
('Default.aspx?id=" + e.Item.Cells[0].Text + "');");
}

  双击表格连接到另一页,在itemDataBind事件中

if(e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
   {
string OrderItemID =e.item.cells[1].Text;
...
e.item.Attributes.Add("ondblclick",
"location.href='../ShippedGrid.aspx?id=" + OrderItemID + "'");
}

  双击表格打开新一页

if(e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
   {
string OrderItemID =e.item.cells[1].Text;
...
e.item.Attributes.Add("ondblclick",
"open('../ShippedGrid.aspx?id=" + OrderItemID + "')");
}

  ★特别注意:【?id=】 处不能为 【?id =】