对不起,如果它太荒谬的问题。但是我有一个调用事件的asp按钮。 Event创建一个数据表并将数据表下载为xls。它工作正常,我可以看到下载的文件,但我看不到我显示数据表的gridview。有没有人对它有所了解。
Response.ClearContent();
Response.ContentEncoding = System.Text.Encoding.GetEncoding("windows-1254");
Response.Charset = "windows-1254";
Response.AddHeader("content-disposition", attachment);
Response.ContentType = "application/xsl";
string tab = "";
foreach (DataColumn c in dt.Columns)
{
Response.Write(tab + c.ColumnName);
tab = "\t";
}
\\..somethings about writing to file ...
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.SuppressContent = true;
HttpContext.Current.ApplicationInstance.CompleteRequest();
我尝试在response.flush()之后创建数据表并导入到gridview。当我调试下面的代码时它工作正常。我可以在调试部分看到变量,但gridview仍然看不到。
Response.ClearContent();
Response.ContentEncoding = System.Text.Encoding.GetEncoding("windows-1254");
Response.Charset = "windows-1254";
Response.AddHeader("content-disposition", attachment);
Response.ContentType = "application/xsl";
string tab = "";
foreach (DataColumn c in dt.Columns)
{
Response.Write(tab + c.ColumnName);
tab = "\t";
}
\\..somethings about writing to file ...
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.SuppressContent = true;
HttpContext.Current.ApplicationInstance.CompleteRequest();
queryString = textbox.Text.Replace("\r\n", " ").ToString();
table = connectDatabase(queryString);
GridView1.DataSource = table;
GridView1.DataBind();
if (GridView1.Rows.Count > 0)
{
GridView1.Visible = true;
}
在你的情况下,你必须创建一个新的.aspx页面,让我们说“download.aspx”你将有下载代码,在你的主页面你可以有你的网格绑定代码,看下面的例子。
MainPage.aspx
btnGetData_click()
{
dt=connectdb(query);
GridView1.DataSource = dt;
GridView1.DataBind();
GridView1.Visible=true;
Session("ExcelData") = dt;
string url = "download.aspx";
string s = "window.open('" + url + "', 'download_window', 'width=100,height=100,left=100,top=100,resizable=no');";
ClientScript.RegisterStartupScript(this.GetType(), "script", s, true);
}
download.aspx
page_load()
{
if(!IsPostBack)
{
DataTable dt = (DataTable)Session("ExcelData");
Response.ClearContent();
Response.ContentEncoding = System.Text.Encoding.GetEncoding("windows-1254");
Response.Charset = "windows-1254";
Response.AddHeader("content-disposition", attachment);
Response.ContentType = "application/xsl";
string tab = "";
foreach (DataColumn c in dt.Columns)
{
Response.Write(tab + c.ColumnName);
tab = "\t";
}
\\..somethings about writing to file ...
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.SuppressContent = true;
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
}