InitiateUploadExtensionObject Method
Overloads
InitiateUploadExtensionObject(Guid) |
Initiates an new upload of an extension object. |
InitiateUploadExtensionObject(Guid)
Initiates an new upload of an extension object.
Declaration
ExtensionUploadHandle InitiateUploadExtensionObject(Guid qvsId)
Parameters
Type | Name | Description |
---|---|---|
System.Guid | qvsId |
The ID of the QVS where the upload should be placed. |
Returns
Type | Description |
---|---|
ExtensionUploadHandle |
A handle which holds information about the upload. |
Remarks
security
Requires membership of local group QlikView Management API.
Examples
The following code example uploads a document extension to a QVS.
The service key injection is assumed to be handled behind the scenes. For an example of how to inject the service key, see Samples.
using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using QMSAPI;
class Program
{
static void Main(string[] args)
{
try
{
// create a QMS API client
IQMS apiClient = new QMSClient();
//retrieve a time limited service key
ServiceKeyClientMessageInspector.ServiceKey = apiClient.GetTimeLimitedServiceKey();
//This is a valid QVS guid
Guid qvsId = new Guid("{6afbbc64-9681-406b-8917-e78bc370a05c}");
//Initiate the upload
ExtensionUploadHandle handle = apiClient.InitiateUploadExtensionObject(qvsId);
if (handle != null)
{
FileStream fs = new FileStream(@"C:\FlexiGrid.qar", FileMode.Open);
int maxBufferSize = 1024 * 16;
byte[] buffer = new byte[maxBufferSize];
int bytesRead;
while ((bytesRead = fs.Read(buffer, 0, maxBufferSize)) > 0)
{
//Copy the read bytes into a new buffer with the same size as the number of received bytes
byte[] byteWireBuffer = new byte[bytesRead];
Buffer.BlockCopy(buffer, 0, byteWireBuffer, 0, bytesRead);
//Write the buffer to the QVS
handle = apiClient.WriteExtensionObject(handle, byteWireBuffer);
}
//Finalize the upload. This will install the extension object if it is valid.
List<QVSMessage> msg = apiClient.CloseAndInstallExtensionObject(handle);
msg.ForEach(m => Console.WriteLine(m.Text));
}
}
catch (Exception ex)
{
Console.WriteLine("An exception occurred: " + ex.Message);
}
// wait for user to press any key
Console.ReadLine();
}
}
See Also
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