1. I am using the webservice to render the images from a report, and they dont render.
I paste this URL to the browser
http://agamenon:90/ReportServer?%2fGescomRpts%2fRPT_MediosDesarrollo&rs%3aFormat=HTML4.0&rs:ImageID=6c809239-753f-4988-abcf-231416dff0d6
and I get this
No se encuentra la secuencia. No se encuentra el identificador de secuencia proporcionado a una operación en la base de datos del servidor de informes. (rsStreamNotFound) Obtener ayuda en pantalla
This is the code
the problem is that I need to know the streamid, and to know the streamid I first have to render the report where the image is to be placed.
This is the page getimage.aspx
protected void Page_Load(object sender, EventArgs e)
{
string reportPath = Server.UrlDecode(Request["report"]);
//string streamID = Request["streamid"];
ReportExecutionService rs = (ReportExecutionService)Session["rs"];
DataSourceCredentials[] credentials = null;
string showHideToggle = null;
string encoding;
string mimeType;
string extension;
Warning[] warnings = null;
ParameterValue[] reportHistoryParameters = null;
string historyID = null;
string[] streamIDs = null;
ServerInfoHeader sh = new ServerInfoHeader();
rs.ServerInfoHeaderValue = sh;
byte[] result = null;
ParameterValue[] reportParameterValues2 = null;
string deviceInfo = "<DeviceInfo>" +
//"<StreamRoot>" + streamRoot + "</StreamRoot>" +
"<Toolbar>False</Toolbar>" +
"<Parameters>False</Parameters>" +
"<HTMLFragment>True</HTMLFragment>" +
"<StyleStream>False</StyleStream>" +
"<Section>0</Section>" +
"<Zoom>" +
"</Zoom>" +
"</DeviceInfo>";
result = rs.Render("HTML4.0", deviceInfo, out extension, out mimeType, out encoding, out warnings, out streamIDs);
string streamID = streamIDs[0];
string encodingImage;
string mimeTypeImage;
byte[] image;
ParameterValue[] pv = (ParameterValue[])Session["reportParameterValues"];
//image = rs.RenderStream(reportPath, "HTML4.0", streamID, null, null, pv, out encodingImage, out mimeTypeImage);
image=rs.RenderStream("HTML4.0", streamID, null, out encodingImage, out mimeTypeImage);
Response.Clear();
Response.ContentType = mimeTypeImage;
Response.AppendHeader("content-length", image.Length.ToString());
Response.BinaryWrite(image);
Response.Flush();
Response.Close();
}
and this is the page of the report. Sorry for the long code.
if (reportCanBeRendered)
{
string deviceInfo;
string streamRoot;
Session["rs"] = rs;
streamRoot = ("getimage.aspx?report="+ (path + "&streamid="));
switch (format)
{
case "HTML4.0":
case "HTML3.2":
deviceInfo = "<DeviceInfo>" +
"<StreamRoot></StreamRoot>" +
"<Toolbar>False</Toolbar>" +
"<Parameters>False</Parameters>" +
"<HTMLFragment>True</HTMLFragment>" +
"<StyleStream>False</StyleStream>" +
"<Section>0</Section>" +
"<Zoom>" +
"</Zoom>" +
"</DeviceInfo>";
break;
default:
deviceInfo = "<DeviceInfo></DeviceInfo>";
break;
}
// SQLRS-ReportViewer
if (!(reportParameterValues == null))
{
//reportParameterValues2 = reportParameterValues.ToArray(typeof(ParameterValue));
//reportParameterValues2 = (ParameterValue[])reportParameterValues.ToArray(typeof(ParameterValue));
}
DataSourceCredentials[] credentials = null;
string showHideToggle = null;
string encoding;
string mimeType;
string extension;
Warning[] warnings = null;
ParameterValue[] reportHistoryParameters = null;
string historyID = null;
string[] streamIDs = null;
ServerInfoHeader sh = new ServerInfoHeader();
rs.ServerInfoHeaderValue = sh;
byte[] result = null;
ParameterValue[] reportParameterValues2 = null;
result = rs.Render(format, deviceInfo, out extension, out mimeType, out encoding, out warnings, out streamIDs);
streamRoot = "getimage.aspx?report=" + path + "&streamid=" + streamIDs[0];
//string reportPath2 = Server.UrlDecode(Request["report"]);
//string streamID = streamIDs[0];
////string streamID = "";
//ReportExecutionService rs2 = new ReportExecutionService();
//Session["rs"] = rs;
//rs2=(ReportExecutionService)Session["rs"];
//////ReportingService rs = (ReportingService)Session["rs"];
//string encodingImage;
//string mimeTypeImage;
//byte[] image;
//ParameterValue[] pv = (ParameterValue[])Session["reportParameterValues"];
//////image = rs.RenderStream(reportPath, "HTML4.0", streamID, null, null, pv, out encodingImage, out mimeTypeImage);
//image = rs2.RenderStream("HTML4.0", streamID, null, out encodingImage, out mimeTypeImage);
//Response.Clear();
//Response.ContentType = mimeTypeImage;
//Response.AppendHeader("content-length", image.Length.ToString());
//Response.BinaryWrite(image);
//Response.Flush();
//Response.Close();
// store ReportingServices and parameters object is session layer in case we need it for image streams
Session["rs"] = rs;
Session["reportParameterValues"] = reportParameterValues2;
switch (format)
{
case "HTML4.0":
case "HTML3.2":
System.Text.Encoding enc = System.Text.Encoding.UTF8;
// get the report as a string
string tmpReport = enc.GetString(result);
// replace all occurrences of report server link with current page link
tmpReport = tmpReport.Replace(reportServerURL.Replace("/ReportService.asmx", "?"), ("http://"
+ (Request["SERVER_NAME"]
+ (Request["SCRIPT_NAME"] + "?Report="))));
ReportPlaceholder.InnerHtml = tmpReport;
break;
default:
Response.ClearContent();
Response.AppendHeader("content-length", result.Length.ToString());
Response.ContentType = mimeType;
Response.BinaryWrite(result);
Response.Flush();
Response.Close();
break;
}
}
I actually solved the proble, this code has a little of garbage, but it began working.
private void GenerarInPlaceHTML()
{
string path = reportPath+ "RPT_MediosDesarrollo";
ReportExecutionService rs = new ReportExecutionService();
rs.Url = reportServerURL;
System.Net.NetworkCredential reportCredentials = new System.Net.NetworkCredential(reportUser, userPassword, domain);
rs.Credentials = reportCredentials;
// see if Report URL parameter is defined and if it is then consider that report
if (!(Request["Report"] == null))
{
reportPath = Request["Report"];
}
// set the Report hidden parameter
Report.Value = reportPath;
// Get the list of parameters. without specifing to render the report (ForRendering set to false)
// valid values for these parameters will not be populated
ExecutionInfo execInfo;
execInfo = rs.LoadReport(path, null);
ReportParameter[] reportParametersArray = execInfo.Parameters;
//reportParametersArray = rs.GetReportParameters(path, null, false, null, null);
//// If there are parametrs then we generate an array with values that should be populated from either
//// - previous submission ,
//// - URL parameters,
//// - default value defined inside the report
//// some usefull declarations
System.Web.UI.HtmlControls.HtmlTableRow TR = new HtmlTableRow();
System.Web.UI.HtmlControls.HtmlTableCell TD;
System.Web.UI.HtmlControls.HtmlSelect S;
System.Web.UI.WebControls.ListItem LI;
System.Web.UI.HtmlControls.HtmlInputText T;
//// hash table with dependecies
System.Collections.Hashtable Dependencies = new System.Collections.Hashtable();
//// we need a dynamic array for storing parameter values
ArrayList reportParameterValues= new ArrayList();
if (reportCanBeRendered)
{
string deviceInfo;
string streamRoot;
Session["rs"] = rs;
streamRoot = ("getimage.aspx?report="+ (path + "&streamid="));
switch (format)
{
case "HTML4.0":
case "HTML3.2":
deviceInfo = "<DeviceInfo>" +
"<StreamRoot>http://ImagenesTemporales/</StreamRoot>" +
"<Toolbar>False</Toolbar>" +
"<Parameters>False</Parameters>" +
"<HTMLFragment>True</HTMLFragment>" +
"<StyleStream>False</StyleStream>" +
"<Section>0</Section>" +
"<Zoom>" +
"</Zoom>" +
"</DeviceInfo>";
break;
default:
deviceInfo = "<DeviceInfo></DeviceInfo>";
break;
}
// SQLRS-ReportViewer
if (!(reportParameterValues == null))
{
//reportParameterValues2 = reportParameterValues.ToArray(typeof(ParameterValue));
//reportParameterValues2 = (ParameterValue[])reportParameterValues.ToArray(typeof(ParameterValue));
}
DataSourceCredentials[] credentials = null;
string showHideToggle = null;
string encoding;
string mimeType;
string extension;
Warning[] warnings = null;
ParameterValue[] reportHistoryParameters = null;
string historyID = null;
string[] streamIDs = null;
ServerInfoHeader sh = new ServerInfoHeader();
rs.ServerInfoHeaderValue = sh;
byte[] result = null;
ParameterValue[] reportParameterValues2 = null;
result = rs.Render(format, deviceInfo, out extension, out mimeType, out encoding, out warnings, out streamIDs);
string encodingImage;
string mimeTypeImage;
byte[] image = rs.RenderStream("HTML4.0", streamIDs[0], null, out encodingImage,out mimeTypeImage);
System.IO.FileStream fs = System.IO.File.OpenWrite(@."C:\Inetpub\wwwroot\GescomDllo\ImagenesTemporales\" + streamIDs[0]);
fs.Write(image, 0, Convert.ToInt32(image.Length));
fs.Close();
// store ReportingServices and parameters object is session layer in case we need it for image streams
Session["rs"] = rs;
Session["reportParameterValues"] = reportParameterValues2;
switch (format)
{
case "HTML4.0":
case "HTML3.2":
System.Text.Encoding enc = System.Text.Encoding.UTF8;
// get the report as a string
string tmpReport = enc.GetString(result);
// replace all occurrences of report server link with current page link
tmpReport = tmpReport.Replace(reportServerURL.Replace("/ReportService.asmx", "?"), ("http://"
+ (Request["SERVER_NAME"]
+ (Request["SCRIPT_NAME"] + "?Report="))));
ReportPlaceholder.InnerHtml = tmpReport;
break;
default:
Response.ClearContent();
Response.AppendHeader("content-length", result.Length.ToString());
Response.ContentType = mimeType;
Response.BinaryWrite(result);
Response.Flush();
Response.Close();
break;
}
}
}
|||Thanks buddy!!!
you answer helped me, though it was tough to figure out what i was doing wrong previosly. the only mistake i was doing is here .
it should be this.
image=rs.RenderStream("HTML4.0", streamID, null, out encodingImage, out mimeTypeImage);
i was doing this.
image=rs.RenderStream("IMAGE", streamID, null, out encodingImage, out mimeTypeImage);
Thanks again
|||
Luis Esteban, tendras ese mismo codigo pero para reporting services 2000?
Saludos
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