Asp.net如何获取JavaScript的返回结果

ccp5780199 2007-08-15 09:24:51

想实现一个功能，比如二次确定
第一次确定完弹出第二个确认框
两个都确认后才进行操作
这样就要求ASP.NET要获取JavaScript的Confirm的返回值
请问这个怎么实现

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ccp5780199 2007-08-16

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谢谢Jinglecat(晓风残月 >> 问题需简洁，错误要详细)
的回答。太感谢了

Jinglecat 2007-08-16

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// Simple DEMO

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) {
LoadProductData();
}
}

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
//
GridView grd = sender as GridView;
GridViewRow row = grd.Rows[e.RowIndex];
int productId = (int)grd.DataKeys[row.RowIndex].Value;
HiddenField fldDeleteFlag = row.FindControl("fldDeleteFlag") as HiddenField;
bool flag = (fldDeleteFlag.Value == "1");

// 以下两个删除应该考虑是否需要事务处理
// 根据 productId 删除主信息
// ...
if (flag) {
// 执行相关删除
// ...
}
// just test below
Response.Write(productId + ", " + flag);
}

void LoadProductData()
{
GridView1.DataSource = CreateSampleProductData();
GridView1.DataBind();
}

#region sample data

static DataTable CreateSampleProductData()
{
DataTable tbl = new DataTable("Products");

tbl.Columns.Add("ProductID", typeof(int));
tbl.Columns.Add("ProductName", typeof(string));
tbl.Columns.Add("UnitPrice", typeof(decimal));
tbl.Columns.Add("CategoryID", typeof(int));

tbl.Rows.Add(1, "Chai", 18, 1);
tbl.Rows.Add(2, "Chang", 19, 1);
tbl.Rows.Add(3, "Aniseed Syrup", 10, 2);
tbl.Rows.Add(4, "Chef Anton's Cajun Seasoning", 22, 2);
tbl.Rows.Add(5, "Chef Anton's Gumbo Mix", 21.35, 2);
tbl.Rows.Add(47, "Zaanse koeken", 9.5, 3);
tbl.Rows.Add(48, "Chocolade", 12.75, 3);
tbl.Rows.Add(49, "Maxilaku", 20, 3);

return tbl;
}

#endregion

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>CSDN_GridViewDoubleConfirmBeforeDelete</title>

</head>
<body>
<form id="form1" runat="server">

<h1>删除前两次确认提示</h1>
<asp:GridView ID="GridView1" DataKeyNames="ProductID" runat="server" AutoGenerateColumns="false" OnRowDeleting="GridView1_RowDeleting">
<Columns>
<asp:TemplateField HeaderText="ProductName" >
<ItemTemplate><%# Eval("ProductName") %></ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="UnitPrice" HeaderText="UnitPrice" />
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnDelete" CommandName="Delete" OnClientClick="if(!confirm('确定删除？')) { return false; } else { document.getElementById(this.id.replace('btnDelete', 'fldDeleteFlag')).value = (confirm('同时删除xxxxx？') ? 1 : 0); }"
Text="删除" runat="server" />
<asp:HiddenField ID="fldDeleteFlag" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

</form>
</body>
</html>

ccp5780199 2007-08-16