Vb Net Treeview File
FTP and VB. NETWEBINAR On demand webcast. How to Boost Database Development Productivity on Linux, Docker, and Kubernetes with Microsoft SQL Server 2. REGISTER Introduction. Imagine a life without the Internet. You cant, can you No. Just today, I told one of my colleagues that the human race has grown so dependent on the Internet, and when, for example, a network is down, you cannot do any work. UploadFile/BlogImages/01262015134551PM/alexander.jpg' alt='Vb Net Treeview File' title='Vb Net Treeview File' />The Internet is good, but it is very scary to come to a realization of our need for the Internet. Today, I will quickly show you how to create an FTP program in Visual Basic. Lets get technicalbut not too muchVB. NET code for vb. net developers. Drag and Drop Version VB 2010 Author Brane Ljubi Submitted 9292017 Downloads 223. C Treeview Control The TreeView control contains a hierarchy of TreeViewItem controls. It provides a way to display information in a hierarchical structure by using. In an earlier article, I spoke about UDP and Visual Basic. In this article, I spoke about all the protocols that make the Internet what it is. That just covered the communication part lets explore the real Internet now. The Internet. The Internet is a global system of interconnected computer networks that use TCPIP to link trillions of devices worldwide linked by an array of electronic, wireless, and optical networking technologies. Okay, Captain Obvious thats me, lets move onFor a good and proper lesson on the Internet and its origins, this Wikipedia article will be helpful. I am just going to highlight Protocols and specifically the FTP Protocol here. Protocols. A Protocol, or rather a Communication Protocol, is a set of rules that enables two or more entities to transmit information to one another. Common Protocols. Some of the most common Protocols are as follows For more information regarding these protocols, read through this article of mine. FTPFTP File Transfer Protocol is used for exchanging files over the Internet. Our Program. Start Visual Basic and create a Visual Basic Windows Forms application. Add four buttons to your form. I have not named any of my objects. Design your form to look more or less like Figure 1. Figure 1 Our Design. How to create a TreeView from XML File XML is a self describing language and it gives the data as well as the rules to extract what the data it contains. Here Mudassar Ahmed Khan has explained how to insert data from Excel sheet into SQL Server database table using SqlBulkCopy in C and VB. Net. SqlBulkCopy class as the. Learn how to create a PDF file using Visual Basic. The source code and demo project were updated. This tutorial is part of a series Part 1 Part 2. In Part 1 of this tutorial series, I presented a way to use the. NET TreeView control as a file browser similar to. VB. NET Tutorial, VB. NET Help and VB. NET Source code for beginners and advanced users. The Code. You can most likely already deduce that we will cover four FTP operations today. These are Uploading a file to an FTP Server. Downloading a file from an FTP Server. Deleting a file from an FTP Server. Renaming a file on an FTP Server. Before we can do any of those, we need to import the necessary namespaces into our project. Add them now Imports System. Net Web. Imports System. IO Files. The System. Net namespace enables you to work with Internet protocols, Internet Web pages, and Internet resources. The System. IO namespace enables you to work with any file. Uploading a File to an FTP Server. Add the following code behind the button Labeled UPLOAD Upload File to FTP site. Private Sub Button. Clicksender As Object, e As Event. Args. Handles Button. Click. Create Request To Upload File. Dim wr. Upload As Ftp. Web. Request Direct. CastWeb. Request. Create. ftp ftp. Ftp. Web. Request. Specify Username Password. Upload. Credentials New Network. Credentialuser,. Start Upload Process. Upload. Method Web. Request. Methods. Ftp. Upload. File. Locate File And Store It In Byte Array. Dim btfile As Byte File. Read. All. Bytesc file. Get File. Dim str. File As Stream wr. Upload. Get. Request. Stream. Upload Each Byte. File. Writebtfile, 0, btfile. Length. str. File. Close. Free Memory. File. Dispose. First up, an Ftp. Web. Request object gets created. This object will be responsible for sending the specific FTP commands to either identify the user or do a certain function, such as uploading a file. In a Credentials request, I sent through a username and password that were made up in my case, as this is just an example. I then specified that I want to upload a file. The File stream is then read and sent byte by byte until the Upload is complete. Easy, peasy. The rest of the code will have a lot of similarities. Obviously, there are more advanced ways of doing this, but this article exists to help you get the basics right as well as familiarize yourself with FTP. Add the following code Download A File From FTP Site. Private Sub Button. Clicksender As Object, e As Event. Args. Handles Button. Click. Create Request To Download File. Dim wr. Download As Ftp. Web. Request. Web. Request. Createftp ftp. Specify That You Want To Download A File. Download. Method Web. Request. Methods. Ftp. Download. File. Specify Username Password. Download. Credentials New Network. Credentialuser,. Response Object. Dim r. Download. Response As Ftp. Web. Response. Download. Get. Response. Incoming File Stream. Dim str. File. Stream As Stream. Download. Response. Get. Response. Stream. Read File Stream Data. Dim sr. File As Stream. Reader New Stream. Readerstr. File. Stream. Console. Write. Linesr. Buy And Download Games Uk Truck Simulator Indonesia Full Version. File. Read. To. End. Show Status Of Download. Console. Write. LineDownload Complete, status 0,. Download. Response. Status. Description. File. Close Close. Download. Response. Close. Delete File On FTP Server. Private Sub Button. Clicksender As Object, e As Event. Args. Handles Button. Click. Create Request To Delete File. Dim wr. Delete As Ftp. Web. Request. CTypeWeb. Request. Createftp ftp. Ftp. Web. Request. Specify That You Want To Delete A File. Delete. Method Web. Request. Methods. Ftp. Delete. File. Response Object. Dim r. Delete. Response As Ftp. Web. Response. CTypewr. Delete. Get. Response,. Ftp. Web. Response. Show Status Of Delete. Console. Write. LineDelete status 0,. Delete. Response. Status. Description. Delete. Response. Close. As I mentioned, there are a lot of similarities between the previous code and these two pieces. Button 2 downloads a file from FTP. Button 3 deletes a file from an FTP location, all using the same techniques I demonstrated earlier with uploading a file. Add the last bit of code rename File On FTP Server. Private Sub Button. Clicksender As Object, e As Event. Args. Handles Button. Click. Create Request To Rename File. Dim wr. Rename As System. Net. Ftp. Web. Request. CTypeFtp. Web. Request. Createftp ftp. Ftp. Web. Request. Specify Username Password. Rename. Credentials New Network. Credentialuser,. Rename A File. Rename. Method Web. Request. Methods. Ftp. Rename. wr. Rename. Rename. To TEST. TXT. Determine Response Of Operation. Dim r. Response As System. Net. Ftp. Web. Response. Response CTypewr. Rename. Get. Response, Ftp. Web. Response. Get Description. Dim str. Status. Desc As String r. Response. Status. Description. Get Code. Dim str. Status. Code As Ftp. Status. Code r. Response. Status. Code. If str. Status. Code lt Net. Ftp. Status. Code. File. Action. OK Then. Message. Box. ShowRename failed. Returned status. Status. Code str. Status. Desc. Message. Box. ShowRename succeeded. End If. Catch ex As Exception. Message. Box. ShowRename failed. Message. The preceding code renames a file at an FTP location. I also introduced the Ftp. Web. Response class that assists in giving feedback to operations. In this case, I tested the response and, if an error is returned, I will know that there is something wrong. Conclusion. Knowing when and how to work with the Internets many different protocols is essential in any decent application. Using Sql. Bulk. Copy to import Excel Spread. Sheet data into SQL Server in ASP. Net using C and VB. Net. In this article I will explain how to insert data from Excel sheet into SQL Server database table using Sql. Bulk. Copy in C and VB. Net. Sql. Bulk. Copy class as the name suggests does bulk insert from one source to another and hence all rows from the Excel sheet can be easily read and inserted using the Sql. Bulk. Copy class. Database. I have created a simple table named tbl. Persons whose schema is shown below. Note The SQL for creating the database is provided in the attached sample code. Connection String to the Databaselt add name constr connection. String Data Source. SQL2. R2 DatabasePersons. DB User Idmudassar passwordxxxxx Connection String for Excel 2. Excel 2. 00. 7 or higher formats. I have specified the connection strings for the Excel files of both 2. Web. Config file. Excel. Con. String connection. String ProviderMicrosoft. Jet. OLEDB. 4. 0 Data Source0 Extended PropertiesExcel 8. HDRYES lt add name Excel. Con. String connection. String ProviderMicrosoft. ACE. OLEDB. 1. 2. Data Source0 Extended PropertiesExcel 8. HDRYES HTML Markup. The HTML Markup consists of ASP. Net File. Upload control and a Button to trigger the file upload process. File. Upload. IDFile. Upload. 1runatserver lt asp Button. TextUploadOn. ClickUploadrunatserver Namespaces. You will need to import the following namespaces. Cusing System. IO using System. Data using System. Data. Ole. Db using System. Data. Sql. Client using System. Configuration VB. Net. Imports System. IOImports System. Data. Imports System. Data. Ole. Db. Imports System. Data. Sql. Client. Imports System. Configuration. Uploading and inserting rows from Excel to SQL Server Table. On the click of the button the Excel file is first uploaded and then saved inside a folder named Files. Then based on the extension of the Excel file i. Web. Config file. Then a connection is established with the Excel file and the name of the first sheet is read into a variable. Note I am considering all Excel files with the first row as the Header Row containing the names of the columns, you can set HDRNo if your excel file does not have a Header Row. Using the fetched Sheet name, a SELECT statement is executed and all the records from the Excel sheet are fetched into a Data. Table. Note You will notice I have defined columns in Data. Table before loading data from Excel file, though it is not necessary but recommended as otherwise all fields will be considered of type string by default. Now a connection is established with the database and the Sql. Bulk. Copy object is initialized and I have specified the name of the Table using the Destination. Table. Name property. Finally the columns are mapped and all the rows from the Data. Table are inserted into the SQL Server table. Note The mapping of columns of the Data. Table and the SQL Server table is optional and you need to do only in case where your Data. Table andor the SQL Server Table do not have same number of columns or the names of columns are different. Cprotectedvoid Uploadobject sender, Event. Args e Upload and save the file string excel. Path Server. Map. PathFiles Path. Get. File. NameFile. Upload. Posted. File. File. Name File. Upload. Save. Asexcel. Path string con. String string. Empty string extension Path. Get. ExtensionFile. Upload. 1. Posted. File. File. Name switch extension case. Excel 9. 7 0. 3 con. String Configuration. Manager. Connection. StringsExcel. 03. Con. String. Connection. String break case. Excel 0. 7 or higher con. String Configuration. Manager. Connection. StringsExcel. 07Con. String. Connection. String break con. String string. Formatcon. String, excel. Path using Ole. Db. Connection excelcon new. Ole. Db. Connectioncon. String excelcon. Open string sheet. Get. Ole. Db. Schema. TableOle. Db. Schema. Guid. Tables, null. Rows0TABLENAME. To. String Data. Table dt. Excel. Data new. Data. Table OPTIONAL It is recommended as otherwise the data will be considered as String by default. Excel. Data. Columns. Add. Rangenew. Data. Column3 new. Data. ColumnId, typeofint, new. Data. ColumnName, typeofstring, new. Data. ColumnSalary,typeofdecimal using Ole. Db. Data. Adapter oda new. Ole. Db. Data. AdapterSELECT FROM sheet. Filldt. Excel. Data excelcon. Close string cons. String Configuration. Manager. Connection. Stringsconstr. Connection. String using Sql. Connection con new. Sql. Connectioncons. String using Sql. Bulk. Copy sql. Bulk. Copy new. Sql. Bulk. Copycon Set the database table name sql. Bulk. Copy. Destination. Table. Name dbo. Persons OPTIONAL Map the Excel columns with that of the database table sql. Bulk. Copy. Column. Mappings. AddId, Person. Id sql. Bulk. Copy. Column. Mappings. AddName, Name sql. Bulk. Copy. Column. Mappings. AddSalary, Salary con. Open sql. Bulk. Copy. Write. To. Serverdt. Excel. Data con. Close VB. Net. Protected. Sub Uploadsender As. Object, e As. Event. Args Upload and save the file Dim excel. Path As. String Server. Map. PathFiles Path. Get. File. NameFile. Upload. 1. Posted. File. File. Name File. Upload. 1. Save. Asexcel. Path Dim conn. String As. String String. Empty Dim extension As. String Path. Get. ExtensionFile. Upload. Posted. File. File. Name Select. Case extension Case. Excel 9. 7 0. 3 conn. String Configuration. Manager. Connection. StringsExcel. 03. Con. String. Connection. String Exit Select Case. Excel 0. 7 or higher conn. String Configuration. Manager. Connection. StringsExcel. 07Con. String. Connection. String Exit Select End. Select conn. String String. Formatconn. String, excel. Path Using excelcon As. New. Ole. Db. Connectionconn. String excelcon. Sp1 For Vs 2010. Open Dim sheet. As. String excelcon. Get. Ole. Db. Schema. TableOle. Db. Schema. Guid. Tables, Nothing. Rows0TABLENAME. To. String Dim dt. Excel. Data As. New. Data. Table OPTIONAL It is recommended as otherwise the data will be considered as String by default. Excel. Data. Columns. Add. RangeNew. Data. Column2 New. Data. ColumnId, Get. TypeInteger, New. Data. ColumnName, Get. TypeString, New. Data. ColumnSalary, Get. TypeDecimal Using oda As. New. Ole. Db. Data. AdapterConvert. To. StringSELECT FROM sheet. Filldt. Excel. Data End. Using excelcon. Close Dim con. String As. String Configuration. Manager. Connection. Stringsconstr. Connection. String Using con As. New. Sql. Connectioncon. String Using sql. Pilote Epson Stylus Dx5050 Windows 7 here. Bulk. Copy As. New. Sql. Bulk. Copycon Set the database table name sql.