Retrieve And Save Data From DataTable?
Jun 19, 2010I have a question for store data from vb.net
I want to store data a file without use any database engin and
Retrieve and save data from DataTable
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Retrieve Data Of Datatable?
Feb 4, 2009I have a dataset and inside it a dataTable. How can I retrieve the data of the datatable?[code]...
View 4 RepliesRetrieve Data From Textboxes And Save Them
Apr 2, 2009[Code]...
how can I add a new row and save those records in the TextBoxes?
Save And Retrieve Data In FORM?
Dec 4, 2009im trying to make a basic Database
Its suppose to save the stuff written in the texbox for example
I have to input 255 students Name, address, age and Birthdays and save them all and then try to find all of the info stored by entering the Name.
Also i have to generate a student Id not just giving a Id to them so for example if the first student i enter his ID # should be 1 and so on as i enter the name
Save Data To A Database That Is In Access And Retrieve Them
May 25, 2010how to save data to a database that is in access and retrieve them anytime.
View 5 RepliesAdd, Save, Delete, Retrieve Data Similar To Access?
Apr 14, 2009I am doing a project on creating a database using vb.net. I need to be able to add records, save, delete and retrieve these data. I am a beginner so far I have created the design I need to be able to link many forms such as order form, find customers, add customers etc. How do i go about this.
View 2 RepliesRetrieve Data From Text File And Save It To Sql Database?
Jun 10, 2011i want to retrieve data from text file and save it to sql database bt i just have to implement some conditions like if there are 3 entries exists in text file with the same ID but i just have to get only 2 of them so in what manner should i write the code....
Dim sbIDs As New System.Text.StringBuilder
Dim sbPunchDateStamp As New System.Text.StringBuilder
Dim sbPunchTimeStamp As New System.Text.StringBuilder
[Code].....
Retrieve Data From Textfile(.txt) And Save It Into Access Database?
Jan 27, 2010I am looking for ways to retrieve data from textfile and save it into access database. Currently, I am doing a attendance record project. I need to save the attendance record which is given in a text file to the database. The version of VB i using is VB 2008.
The content of the text file look like this:
E010,2009/06,06/29/2009 7:44:45AM,06/29/2009 15:00:55PM,JUR
E022,2009/06,06/29/2009 7:44:45AM,06/29/2009 15:00:55PM,JUR
[Code]....
I tried to create a class and store the record but it just don't work.
Save And Retrieve Initial View Data To / From Registry?
Apr 3, 2009I am looking for code examples that allow me to write a user's view settings (field sorted by, label selections, etc.) from the detail view of a file open (GetOpenFileName) API
View 1 RepliesSave DataTable Structure And Data Into A Database Table?
Mar 10, 2010How to Save DataTable Structure And Data Into A Datatbase Table..
View 7 RepliesExport/save Data From Datagrid/datatable To Excel In VB 2008 Express Edition?
May 4, 2009I'm using the 2008 express edition. Now, I created an application that will allow the user to choose transaction in the combobox.text and input its price and quantity using an textbox.text. When the user click button1, it will be push in the datagrid/datable I created. And when the user click the button2, it must be save to excel file. The only thing I need is how to save the data from datagrid/datatable to excel. This is my code.
Imports System.Data
Imports System.Data.SqlClient
Imports Excel = Microsoft.Office.Interop.Excel
[Code]....
How To Store And Retrieve DataTable As Blob
Apr 23, 2012We are trying to store and retrieve datatable as blob (varbinary(max)). We convert the existing datatable into an xml file and store that xml file as a blob and while retrieving we get the blob as xml file and convert it back to datatble. It seems to be storing and retrieving the xml object but having issues while converting it back to the datatable ("End of stream - error").
View 2 RepliesRetrieve Datatable.column Value In Rpt_RowDataBound Sub In Asp.net
Oct 13, 2011In the rpt_RowDataBound sub, instead of using a FileInfo object, I need to use a database value ("statusupdate").
If month <> TryCast(e.Item.DataItem, FileInfo).CreationTime.Month OrElse year <> TryCast(e.Item.DataItem, FileInfo).CreationTime.Year Then
How can I replace the "FileInfo" in the above code line with datarow("statusupdate")
Code:
HTML:
<asp:Repeater ID="rpt" runat="server" OnItemDataBound="rpt_RowDataBound" Visible="true">
<ItemTemplate>
[Code].....
Retrieve String Array From Datatable Using Linq?
Oct 27, 2010I have a datatable with one column, I am trying to retrieve the values in the table into a string array using linq.
Dim dt As DataTable = DataAccessManager.ExecuteSelectQuery(selectStr).Tables(0)
Dim strArr() As String = (From dr As DataRow In dt.AsEnumerable.AsQueryable _
Select dr("MASTERID").ToString()).ToArray()
I get an error "Range variable cannot match name of a member of the 'Object' class"
Asp.net - Copy Data From Datatable To Dataset.datatable?
Oct 31, 2010how to copy data from datatable to table in dataset i ry this but its readonly property
ds.datatable1=newdt.copy
Use A Datatable As A Data Source To Update A Second Datatable Using Sql?
Aug 10, 2011I am updating a data table (dt_report_crypt) from an encrypted csv file in the code below:I decrypt the colums and update the same dreport_crypt, such that it will contain de-crypted data.This part is working wellI however need to use this de-crypted datatable as a data source to update a second table(dt_report), using the sql SELECT command to filter relevant data,
Dim dt_report As DataTable
Dim dt_report_crypt As DataTable
Using cn As
[code].....
Save Image And Retrieve From SQL?
Sep 25, 2009I've a program that is used for marking exam paper. The exam paper is actually an image being scanned.
The marker will have to retrieve an unmark 'exam paper' from the SQL server column named 'Answersheet'.
After marking, the marker will then save the marked 'exam paper' into the SQL server column named 'MarkedAnswersheet'.
Retrieve And Save To Another Excel Workbook?
May 17, 2012I tried the following code to retrieve data from an excel file,apply query and save the result of query to another excel file. Now there are two problems: One,I am getting the required data but some reduntant unwanted data too. Second,It only works if the excel file, from which the data is retrieved, is open.
Dim dr As OleDbDataReader
Dim i As Integer
Dim strLine As String = ""
[Code].....
Save And Retrieve A Key / IV Pair Securely?
May 17, 2010I'm using VB.Net's RijndaelManaged (RM) to encrypt files, using the RM.GenerateKey and RM.GenerateIV methods to generate the Key and IV and encrypting the file using the CryptoStream class. I'm planning on saving this Key and IV to a file and want to make sure I'm doing it the right way. I am combining the IV+Key, and encrypting that with my RSA Public key and writing it out to a file. Then, to decrypt I use the RSA Private key on this file to get the IV+Key, split them up and set RM.Key and RM.IV to these values and run the decryptor.
Is this the best method to accomplish this, or is there a preferred method for saving the IV & Key?
Save And Retrieve App Setting For Combobox?
Dec 13, 2011I had following form.How to store and retrieve the user setting? So the next time the app will run the information as had saved? I had found related example,but not very understand about it.[URL]The setting i want to save is background image from resource, forecolor, checkbox and trackbar.
View 1 RepliesSave And Retrieve Image From Database?
Jan 10, 2011I'm doing a program that could save and retrieve image from database. My problem is I would not able to save images with my codes..
[Code]...
Save And Retrieve Images In Database?
Jan 29, 2010im making a litle program to save images in database and to retrieve them from there and display in a radgrid.i have made some code for saving images
Dim intLength As Integer
Dim arrContent As Byte()
If fileupload.PostedFile Is Nothing Then
[code]....
it works fine but the problem is that i cant find the way to retrieve them from database ,i mean i cant convert binary files in images format.
Save/retrieve Image Into Database?
Mar 11, 2010how to save/retrieve image into database in vb.net
View 1 RepliesVB 2005 - Save & Retrieve Content To SQL DB
Jun 12, 2011I' successfully created a project fully functional using access database. I've read about SQL connection on VB .net. how to save three text boxes into three fields in excel and a way to retrieve it if I want.
View 2 RepliesSave And Retrieve Image In Access Database?
Mar 11, 2010i am a new user of visual studio 2008i make a database program, but i cant save the image in access data base, i also want that image save a copy file in database.
View 1 RepliesSave And Retrieve Images In 2005 Program
Jan 29, 2009How to save and retrieve images in a vb.net 2005 program
View 3 RepliesSave And Retrieve Picture In Access Database
Mar 11, 2010How to Save and retrieve picture in access data base with vb.net 2008
View 2 RepliesHave A Datatable Which Has 5 Column : Copy Only Its 2 Column In And Save It Into New Datatable?
Mar 15, 2009I have a datatable which has 5 column. It is possible to copy only its 2 column in and save it into new datatable.I used this code but it copies all the 5 column
Code:
Dim qry As DataTable = (From obj In temptable Where obj.Item("Column1") = 0 _
Select obj).CopyToDataTable
i used this one but it is not supported
Code:
Dim qry As DataTable = (From obj In temptable Where obj.Item("Column1") = 0 _
Select obj.item("Column1"), obj.item("Column2")).CopyToDataTable
Retrieve MySQL Blob - Save The File To Disk
Aug 29, 2010I have a mySQL table(IMP_SCANS) holding the file, it's name and size for every document:
scan_1 blob
description varchar
filesize int
doc_no varchar
doc_date date
I managed to insert a file to the table. Now I need to save the file to disk.
So I have the code:
Dim conn As New MySqlConnection
Dim cmd As New MySqlCommand
Dim myData As MySqlDataReader
Dim SQL As String
Dim FileSize As UInt32
Dim fs As FileStream
[CODE]............
I all works fine up to the line: myData.GetBytes(myData.GetOrdinal("scan_1"), 0, rawData, 0, filesize) Where it says "Object reference not set to an instance of an object". I cannot figure out why I receive this error.
Save GridView Column Values And Retrieve Them Without Using A Database?
Apr 30, 2010I would like to save Gridview with all of the columns value and reload the same grid without using database?
View 3 Replies
