how to generate barcode in asp.net using c# DATABASES, WEB SERVICES, AND PROTOCOLS in Font

Print PDF 417 in Font DATABASES, WEB SERVICES, AND PROTOCOLS

CHAPTER 2 DATABASES, WEB SERVICES, AND PROTOCOLS
PDF 417 Creator In None
Using Barcode creator for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
Creating USS Code 128 In None
Using Barcode maker for Font Control to generate, create Code 128B image in Font applications.
www.OnBarcode.com
loaded, the Lists web service is called to retrieve the ID of the newly uploaded document. Finally, the ID is used to apply values to the document properties. We ll also enclose all of these operations within a single try-catch block.
Drawing EAN 128 In None
Using Barcode generation for Font Control to generate, create USS-128 image in Font applications.
www.OnBarcode.com
Barcode Creation In None
Using Barcode creation for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Uploading the File to the Library
Drawing Barcode In None
Using Barcode generation for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Draw UPC-A Supplement 2 In None
Using Barcode creator for Font Control to generate, create UPC-A Supplement 2 image in Font applications.
www.OnBarcode.com
The first operation within the Upload method transfers the document content from the byte array to the target library. This operation relies on the uploading technique I presented earlier in the chapter. As part of this operation, I also log the identity of the operation to the Windows Event Log. This information can be useful when troubleshooting permission issues. Add the code from Listing 2-15 to the Upload method to transfer the byte array. Listing 2-15. Uploading the byte Array try { //Log activity System.Diagnostics.EventLog log = new System.Diagnostics.EventLog(); log.Source = "Library web service"; log.WriteEntry("Service running under account " + WindowsIdentity.GetCurrent().Name + ".", System.Diagnostics.EventLogEntryType.Information); //Build the destination file path string fileRef = siteRef + "/" + listName + "/" + fileName; //Upload file WebClient webClient = new WebClient(); webClient.Credentials = CredentialCache.DefaultCredentials; webClient.UploadData(fileRef,"PUT",fileBuffer); log.WriteEntry(fileName + " uploaded to " + listName, System.Diagnostics.EventLogEntryType.Information);
Code-39 Creator In None
Using Barcode creator for Font Control to generate, create Code-39 image in Font applications.
www.OnBarcode.com
Create Postnet In None
Using Barcode generation for Font Control to generate, create USPS POSTNET Barcode image in Font applications.
www.OnBarcode.com
Retrieving the Document Identifier
Generating PDF417 In Java
Using Barcode drawer for Eclipse BIRT Control to generate, create PDF-417 2d barcode image in BIRT applications.
www.OnBarcode.com
Generating PDF-417 2d Barcode In None
Using Barcode maker for Online Control to generate, create PDF417 image in Online applications.
www.OnBarcode.com
Whenever a new document is added to a library, you will want to know the document ID so that you can interact with the properties. In order to return this information, our web service must call the Lists web service. The solution is to call the Lists web service and return the documents from the target library sorted by the date they were modified. Uploaded documents will always be the most-recently modified document in the library. Along with sorting the documents, we also instruct the Lists web service to limit the result set to a single document. This way we only get the information for the recently uploaded document. Add the code from Listing 2-16 to the end of the Upload method to retrieve the document ID.
Painting EAN 13 In Java
Using Barcode maker for Java Control to generate, create GS1 - 13 image in Java applications.
www.OnBarcode.com
Create Code 39 Full ASCII In None
Using Barcode creator for Microsoft Word Control to generate, create Code39 image in Office Word applications.
www.OnBarcode.com
CHAPTER 2 DATABASES, WEB SERVICES, AND PROTOCOLS
GTIN - 12 Decoder In VB.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Reading UPC - 13 In Visual C#.NET
Using Barcode decoder for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Listing 2-16. Retrieving the Document ID //Connect to the Lists web service for the target site SPSService.Lists listService = new SPSService.Lists(); listService.Url = siteRef + "/_vti_bin/Lists.asmx"; listService.Credentials = System.Net.CredentialCache.DefaultCredentials; //Create the Query for retrieving the recent document XmlDocument xmlDoc = new XmlDocument(); XmlNode query = xmlDoc.CreateNode(XmlNodeType.Element, "Query", ""); query.InnerXml = "<OrderBy><FieldRef Name='Modified' " + "Ascending='FALSE'></FieldRef></OrderBy>"; //Return information for the recent document XmlNode caml = listService.GetListItems(listName,null,query,null,"1",null); string id = caml.ChildNodes[1].ChildNodes[1].Attributes["ows_ID"].Value;
Print PDF417 In VS .NET
Using Barcode encoder for Reporting Service Control to generate, create PDF417 image in Reporting Service applications.
www.OnBarcode.com
GS1-128 Encoder In VB.NET
Using Barcode encoder for .NET framework Control to generate, create EAN128 image in .NET applications.
www.OnBarcode.com
Setting the Document Properties
Barcode Decoder In Visual Studio .NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Encode Data Matrix ECC200 In C#.NET
Using Barcode generation for VS .NET Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Once the document identifier has been retrieved, we can use it to set the values of properties on the documents. This is where we will make use of the fields parameter. This parameter contains the names of the field and the values to set. Because this node is already properly formatted, we can use it directly in a call to the Lists web service. After this operation is complete, our web service will return the results as a string. Add the code from Listing 2-17 to complete the Upload method. Listing 2-17. Setting the Document Properties //Create the Batch CAML element for updating XmlNode batch = xmlDoc.CreateNode(XmlNodeType.Element, "Batch", ""); string temp = "<Method ID='DocService.Upload' Cmd='Update'>"; temp += "<Field Name='FileRef'>" + fileRef + "</Field>"; temp += "<Field Name='ID'>" + id + "</Field>"; foreach(XmlNode field in fields.ChildNodes) { temp += field.OuterXml; } temp += "</Method>"; batch.InnerXml =temp; XmlNode xmlReturn= listService.UpdateListItems(listName,batch); return xmlReturn.OuterXml; } catch (Exception x) { return x.Message; }
Code 128 Code Set B Printer In Objective-C
Using Barcode drawer for iPad Control to generate, create USS Code 128 image in iPad applications.
www.OnBarcode.com
Barcode Generator In None
Using Barcode encoder for Microsoft Word Control to generate, create Barcode image in Word applications.
www.OnBarcode.com
CHAPTER 2 DATABASES, WEB SERVICES, AND PROTOCOLS
Deploying the Web Service
After you have completed coding the Upload method, you can compile the web service. After debugging, make sure to compile the web service in the Release configuration. The service should now be ready to receive client requests.
Creating the Web Service Client
Once the web service is created, you can use it from a wide variety of clients, including ASP .Net applications, web parts, and script clients. In this exercise, you will create a simple Windows client to select a file from the file system and upload it to the target library. For simplicity, we will hard-code some values, but you should be able to see clearly how to extend the concepts to other projects. Follow these steps to create the new client project: 1. In Visual Studio .NET, select File Add Project New Project from the menu. 2. In the Project Types window of the New Project dialog, click on the Visual C# Projects folder. 3. In the Templates window, select Windows Application. 4. In the Name text box, type LibraryClient and click the OK button. 5. When the new project is created, select Project Add Web Reference from the menu. 6. In the Add Web Reference dialog, type http://localhost:8080/Library/ Library.asmx WSDL and click the Go arrow. 7. When the web service is located, type LibraryService in the Web Reference Name box and click the Add Reference button. 8. Once the web reference is set, open Form1 in Visual Studio .NET so you can add some controls to it. 9. Place a button named btnUpload, a TextBox named txtProperty, and an OpenDialog named openDialog on the form, as shown in Figure 2-9.
Copyright © OnBarcode.com . All rights reserved.