I load a text file in a datagridview. The problem is that I want to make some validations to it after I import it.
Eg.
AA / Code / Value
1 1111111 12
2 222222 22
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I have a problem with sorting in datagridview. I load an xml file in a datagridview and I sort the collums for check. when I try to sort it according to it's number the sorting goes like this:
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I have a datagridview which have 5 columns. The name of the columns are T,C,F,S,H.
I have a text file which contain lines like this.
T240C3.175F012S27H2000
T239C0.95F034S55H1000
T236C1.2F029S48H2000
T234C1.6F029S48H2000
So i want to display this data in datagried view. I must display the number beside T to T column, the number beside C to C column and so on. It should only display number in the respective column. It should not display the T,C and so on.
I have the option to save the contents of the listview that was saved into text file.now i would like to load the text file into datagridview in vb.net but i have no idea how to do it as this is my first time in doing it and i had googled around but couldn't find the information i needed.
View 11 Replies1) How can i load data from Text file to DatagridView.I Want it because i'm making a lister. And when i load a data from text file, i want to edit rows. And this calling the second question.
2) How can i save data, Datagrid to Text file.
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I'm working on a simple "sports management" game just to test out whether I could make an actual one some time in the future, but for the life of me I haven't been able to figure out how to save the contents of the datagridview. I want it to be saved in a format that doesn't require the user to have Access or any other program, so that the only thing users need are the .exe and the database file. Another question about the datagridview: How do I access the content on specific rows and columns of the datagridview? If I want TextBox1.Text to be whatever is written on Row 4, Column 2, how do I access that information?
View 1 RepliesI have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code
,
Dim dtParm As DataTable = MyDataSet.tblParameter
Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
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I use Visual Studio 8 and Sql server for my database. I have a form with a DataGridView where my records are display on from the database and some text boxes. I want to pass the data from a specific record from the DataGridView to the text boxes whithin the RowHeaderMouseDoubleClick function.
View 3 RepliesI have a datagridview loaded with data.what i have tried to do is make it so if a certain cell in a row is double clicked then textbox1.text = field 3 of that row .text
View 3 Repliesim fairly new to databases in vb.net and i have just learned how to use datagridview. im gonna show some of my code for the connection and datagridview display
Public Class Form1
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String[code].....
i want to display in a textfield the first name based on where is the pointer is positioned after i clicked Button1, how do i do this?
How can I load a datatable and have the system automatically select a specific row containing text that is already inputted int a textbox?
View 3 RepliesI have an Access database that is updated directly in Access. I'm trying to write a program to 'monitor' the database, and have a DataGridView control showing the contents. When the program is first started, it shows the current data in the DB fine, however, I've been unable to get it to refresh with any updated data from the mdb file. I have a timer running on 5 second intervals, and if i clear the dataset, the DataGridView refreshes to empty.
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Instread of using SQL Connection is there a way to save and load the rows from an .INI file and if it can, mind showing me how?
View 1 RepliesI have a datagridview (Unbound), wich calculate several numbers, and I use this following code to save 5 of the columns to a XML file. My problem is that I would like to load this file back to my datagridview, and only to the same columns, without changing the rest of the datagridview.
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Sitll teaching myself how database and all that works. Need someone to make this easy program for me so i can study it better. Here. Here's what im looking for: Load Database from Text File - read a file called stationsin.csv and add the records to the database pupulating the stationID, station name and the state fields,clear Database - delete all records from the database .Load Listbox from Database - clear and populate the listbox from the database.Listbox click event - populate the labels with the data from the database for that specific location.
Create a class called dbUpdt with the following functions: Constructor - accepts the file name of the database and stores it in a class variable. Opens the database and connection. Query - accepts an SQL command and executes it.MoreRecords - returns a boolean variable indicating if there are more records left in the dataset getField - accepts the name of the field and return the contents of the field from the current record close - closes the connection deleteAll - deletes all records in the database addRecord - accepts the table name, the key field name and the key field contents and adds a record to the database with just the key field filled in. setDBField - accepts the table name, the key field name, the key field contents, the field to be updated along with the field's contents and updates a single field within a single record.
I have create setup for my project, when i tried to open the form which contain datagridview on it. It give me this error. Here is the attachment screen shot of the error.How to solve this error.
View 12 RepliesBefore I begin I would like to mention that I am not a noob in VB, it's just I've never had to do anything this complex before. Basically what I want is to have a program that you can load a txt file in, have it copy key words, and paste it in a textbox so I can use it later on. So in this text file, there is a bunch of info, but I am only needing a certain part. Here is an example of a text file (actually a .dat file, but is easily read):
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# TAG NAME = is saved to a file using the code below but when I load that same file back into a RichTextbox Control using additional code below, I get inconsistent results as I try to parse the text. Has anyone else had this problem?'Save the contents of the RichTextBox into the file.richTextBox.SaveFile(saveFile1.FileName, RichTextBoxStreamType.RichText);'Retrieve contents of File into RichTextBox control Dim logData As String
logData = System.IO.File.ReadAllText(path + "\" + filenname);
I want to load a csv file (A comma delimited text file) into a datatable. I found the OdbcDataAdapter Class which looks perfect, but it says it is supported only in version 1.1 of the .NET Framework.
Is there a better way to import a csv file into a datatable? the first line has the column headers.
I am using Visual Studio 2008, using version 3.5 of the .NET framework
My text file is something like what you see below, and I want to populate the datagrid. Once I populate the datagrid, I'll use that kind of like an excel spreadsheet in the sense that I'll dip in and grab values based on row and column index to display to the user. I will also (on a different form maybe) display the same datagrid to the users so they can sort by column at their choosing.[code]The error I am getting is: Value of type 'Integer' cannot be converted to 'System.Windows.Forms.DataGridViewCell'.
View 1 RepliesI am trying to import a text file to an access database in VB2008 express. The text file I am testing with is a csv file with 34,000 records. The problem is this takes 2 minutes to read through all this and write it to the database. The actual text file I will be using in production has over 800,000 records and this will take a ridiculous amount of time. I think I am doing something wrong. I have posted my code below. I am reading a record, parsing out the fields to an array, then creating an SQL statement to insert the record and executing it.
reader = New IO.StreamReader(fname)
Do While reader.Peek() >= 0
linesread = linesread + 1
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I have a program that generates text tab-delimited files with a header row and sometimes a units row followed by data.
Example:
FirstName LastName Birthday
Michael Jordan 6/6/66
Alan Jackson 7/7/77
or
FirstName LastName Birthday
Name Name Date
Michael Jordan 6/6/66
Alan Jackson 7/7/77
I would like to be able to perform SQL queries on these files. How can I connect to a text tab delimited file to either pretend it is a database table or import it into SQL as a table, preferably through VB.NET? I could have 300,000 rows, and the fields are all numbers, not text... I have manually imported these files into SQL before using management studio, so I know it is possible but I would love to be able to do it programmatically.
Is there any way I can get the SQL code from this process because it does exactly what I need it to do but it is manual. There is an SSIS package that I saved, but I do not know what that is.
I am trying to load a text file into a list box in order to be able to play the files see code below I have an error on this line Which states Error 1 Value of type 'String' cannot be converted to '1-dimensional array of String'.
Dim Open As New OpenFileDialog
Dim myStreamReader As System.IO.StreamReader
Open.Filter = "Text [*.txt*]|*.txt|All Files [*.*]|*.*"
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I wonder how to load transform an MS Excel file to a text file?
View 3 RepliesI save data from datagridview to text file. I also load the same data from text file into datagridview for edit and update the same thing to text file. Let say this text file i called as Drill.txt. I have another text file called header.txt which need to match its value with the value of Drill.txt file then overwrite value from Drill.txt to header.txt. Now i want to make my Drill.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program
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I'm using Visual Basic Express 2008 (VB.NEt). I've created a project which
connects to a Microsoft Access Database (OLEDB) & displays the records using textboxes in the windows app.
I need to add a button which exports the database to a fixed length text file. Does anyone know the code I would use to do this?
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My intention is, to input a text file name and location in textbox1 and the button loads the text file in textbox2.
I've been staring at my code for a few hours, and cannot think of the next part.For my final I need to make a hangman program Pretty much I have a button to load a .txt, a label, a multiline textbox(which will be hidden later), and a normal textbox. I need the program to load the txt file, and randomly select a word. Then have the program put a " - " for every letter in that word The program loads the txt file,to the multiline textbox,but I don't know what to put next. EDIT:After looking at my book i noticed it shows how to make a hangman program, but without loading a text file. So, all I need is the code that will make it select a word randomly from the list, and i think I can do the rest..
View 2 RepliesI have a made a simple program with multiple forms and multi text boxes in each form where the user inputs text into textboxes. I would like to be able to save the data into a file and then be able to load the text from that same saved file.
Is there a code template that would allow me to do this?
I'm trying to load a RichTextBox using an RTF file that is embedded as a resource:
Private Sub Button1_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
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