ASP.Net开发新手常见问题备忘录

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 =】