Read A Column From A Textbox?
Jan 22, 2010
I have a dbase.txt file with some data in it. i.e -
Institution Course StudentID
XZY ABC 2010-1111111 "the spaces between columns is one tab space"
XYZ ABC 2010-1222222
XYZ ABC 2010-1333333
I want to perform simple SQL like operation - i.e -
SELECT (columnname) dbase.txt -i.e SELECT Institution dbase.txt
I have written it for console application. My program can read only the whole text file. So, can anyone help me with this problem. Below is my code -
Public Sub read_File()
Dim FReader As StreamReader
Dim sLine As String
[code]....
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Jan 21, 2009
Is there a way to make a DataGridView's column a combo ONLY in the "new row", and a read only textbox in all other rows? I want the user to be able to make a selection from the combo box, and when the row is finished and the "new row" moves down one, I want the column to become a textbox containing the what the user selected. My grid will be bound to a table witch contains a "category" column, that is drawn from a seccond table that i want the combo box bound to.
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Jul 8, 2010
In my window application i have taken one combobox field with its collection as "amc", "war" etc. Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war". I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
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Jul 8, 2010
in my window application i have taken one combobox column with its collection as "amc", "war" etc.Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war".
I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
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Jan 2, 2010
I know how to read user input using textbox but it only can read character and numbers. Is it possible that I want to read user input equation?
Example:
User type A+B
User put range of A and B.
1.25<A< 3.56
2.45<B< 9.87
I failed to read the equation using textbox. Is it there are other ways that can use to read equation input A+B?I am using VS2005 and VB.Net. I really new in this programming using VB.Net.
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Jan 8, 2010
Is it possible to have a Textbox on a form that when the user inputs data, ( during Runtime )that data remains in the Textbox for good and the Textbox then becomes read only ? Is it also possible to make it so that the CD with the programme on, is in the PC when the programme is being used. Perhaps writing the Textbox data back onto the CD ?
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Sep 21, 2010
I'm using VB 2010.I want a 2-column listbox control where the program fills the first column and the user can fill the second column. For example: The first column lists data fields (age, weight, eye color) and the second column allows the user to enter a query criteria (>65, =150, 'blue') which control I can use? Or maybe I need to create a 3-column grid?
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Mar 25, 2009
I am writing a program where I would like the user to be able to save the contents from multiple textBox into a file and the retrieve the contents late.
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Oct 12, 2010
On my form I have a textbox called TxtSelectedEvType. On the other hand, I have a listview called lvwBatchHist which has two columns, BatchID and EvType respectively.
Now, I want to read all the values in EvType column and compare with the value in TxtSelectedEvType.Text, if they are the same write a message EvType is the same else call a function...
i.e.,
if TxtSelectedEvType.Text = (comparing from the column 'EvType' in lvxBatchHist) Then
MsgBox ("EvType Same", MsgBoxStyle.Information, "Test")
[Code].....
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Jun 10, 2009
i have a text file which contains lines like this:
[1 07.15 44.4] 218611 54227 212454 38691
[1 07.43 45.8] 17111 51225 210454 36691
[1 07.58 45.8] 209611 1235 210454 35691
[1 07.50 46.4] 203611 51225 209454 36191
[1 07.51 59.1] 90111 238 190456 36138
The red colour column is X and green colour column is Y I wanted to replace Column X values with X1....Xn and Column Y values with Y1.
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Dec 9, 2009
I have a datagridview that is bound to a dataset by dragging it onto a windows form. I want one of the columns on the datagridview to be read only for existing records (rows), but I don't want it read only when the add new icon is pressed on the navigator. How can I tell when a row is being edited as opposed to being added?
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Jun 15, 2012
I am importing an excel sheet into my sql database. Everything works fine, but I would like to read the column header in as static value. Not sure how to do this. Here is the code I am using to read the sheet in:
'Connection String to Excel Workbook
Dim excelConnectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & MyFile & ";Extended Properties=""Excel 12.0;HDR=Yes;"""
[code].....
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Sep 29, 2011
Im new to this .NET programmin...i just need to know some basic stuff abt readin data from excel..I just use ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + p_fileUrl + ";Extended Properties='Excel 8.0;Mode=Read;IMEX=1;'") to read data.in a particular column,first ten or below cells hav no values and the rest has values.
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Sep 21, 2010
I am new to the forum and would like some guidance on how I can achieve the following. I would like to read data from a text file after which I want to do a simple calculation that totals one of the columns.
I have already been able to read the text file into a text box but firstly I'm not quite sure if this method of using the text box is appropriate and secondly how do I sum a column of data?
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Dec 26, 2008
how to work with XML.I need to create an multilingual application and need to save the controls captions in sql table with xml data typei started the following:[code]I know this is not very professional but thats all i did until know in SQLNow i have a problem in VB.NET i don't know how to read an xml data type (How to get the value from variables).If somebody can give me an exmaple how to read the xml than i would continue translating for each objects in the form where name is like the variable "btnLogin" and give it the controls.text property to the variables value.
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Mar 8, 2012
program the code for reading excel column to a combobox in a from at the time of form load?
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Apr 26, 2009
With my datagridview I have column for datetime. I used the following for format.
Mydatagrid1.Columns(3).DefaultCellStyle.Format = "dd/MM/yyyy"
But the problem is it's getting input like MM/dd/yyyy and after pressing enter it's changing to dd/mm/yyyy style. So is it possible to read input like "dd/MM/yyyy".
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Sep 24, 2011
I've attached a picture of the list view control that I am using. I've been fine until now, I want to save the entire line of items in the list view control (item_description, price) and dump it into the MySQL database to allow tracking of reciepts. The following code that I have saves the first column worth of information, but I cant figure out a way to save the second column (the price)
Dim li As ListViewItem
For Each li In ListView1.Items
CurItems = CurItems.ToString + li.Text + ", "
Next
Oh right, and I'm making it comma seperated values so I can pull it up in a readable format again.
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Jul 22, 2010
my csv contain mix datatype f.ex. in cell E8 data format is date, and other data in this E column are string.i use this connetion string in classic asp ,VB Script and back end SQl server
ChekCnn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Path1 & ";Extended Properties=""text;HDR=YES;IMEX=1;FMT=Delimited"""
Set rs1 = ChekCnn.Execute("SELECT * FROM myCSV.csv")
[code].....
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Aug 25, 2011
I use an OLEDB connection to read from an excel database, and this loop to read in all of the data from each of the columns
While reader.Read()
For i As Integer = 0 To reader.FieldCount - 1
temp = reader(i).ToString + ControlChars.Tab
output_file.Write(temp)
[code]....
Some of the columns contain date information, which are read in fine (usually as a string "2/20/2011" or so), but the headers of those columns are read in as a blank "". The headers for all the other columns read in fine, but not for the date containing columns.
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Jun 12, 2009
In my form I have a text box for user to enter the number of column and row. And I also have a text box to enter the first X value and Y value. Now what I want to do is if user enter 2 for row and 10 for column then now I will have two rows with 10 column. The X value is for column and Y value is for row.
It will look like this
**********
**********
When the user enter the first X and Y value. For next X and Y value i must plus the original value with 2.54.
So my X1=TextBox1.Text
Y1=TextBox2.text
this values are input by user.
So
X2=TextBox1.text + 2.54
X3=X2 + 2.54.
and so onn. Same apply for Y
Let say user input are X=100 and Y=100
The value for first * is X= 100 and Y=100
Second *X=102.54 and Y= 100............. and so on
For 11th * X=10th *value + 2.54 Y= 100+2.54 and so on
The row and column is not same always it depends on user..
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Apr 15, 2012
I want to get value from gridview column into textbox. i have DGS4 as my gridview . and i want to use query like i used bellow. i uses some code from @luc001 but it stil not working.[code]...
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Feb 12, 2011
how to get value from gridview column into textbox. For example if I have EmailGridview with 2 columns ID, and EMAIL. And would like under gridview to show Email value also in textbox.
I was trying to do many options, but somehow could not get result.
This is nearest, I was with the
EmailTextBox.text = EmailGridView.rows(0).cells(email)
But, of course it is not working.
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May 23, 2011
I am trying to add the sum of a datagrid column to a textbox. There was a similir question in this forum but it doesnt add the sum of all the rows of that column to my textbox.
Me.SubtotalTextBox.Text = ABTDBDataSet.Products.Compute("sum(UnitPrice)", String.Empty) What else do I need to add to get the whole rows sum of one column and show up in the textbox.
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Jun 14, 2011
Does anyone know how to read a single column array from bottom up, then back down, filled with decimal data, into one line seperated by comma's?
a = 0
Do Until a > decArray.Length - 1
test = decArray(a)
[code]....
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Aug 9, 2011
How do i add text from textbox into the datagridview in my first column?
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Aug 2, 2010
How to add the text of the first name textbox to the first name column on a listview and the lastname to the last name column.
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Aug 25, 2011
In vb2010 I am trying to create a small program, I have a textbox and a combobox.
The combobox items are dynamically loaded.
The msaccess database has 3 columns (excl id), groupname, realname, emailaddress.
When I select in the combobox an item, records who has the same name in the groupname column, should select all the email addresses (seperated by a ";") and put them into the textbox.
For example:
When selected Group1 in the combobox.
1: Group1, Rick, rick @ rick.com
2: Group2, David, david @ david.com
3: Group1, Louise, louise @ louise.com
In this case the emailaddresses of records 1 and 3 should be into the textbox:rick @ rick.com; louise @ louise.com
[Code]...
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May 14, 2012
how to get selected row column value from data table to textbox in vb 2010?
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Jun 22, 2010
I am using vb.net and WPF. In a wpf window im showing a datagrid in the load event while in the load event itself,i need to count grand total amount from a single datagrid column and add it to a textbox in same page. How do i do tat if iam counting from a ((Total Column )) DTG and adding it and showing it in my (( GRAND TOTAL AMOUNT)) TEXTBOX.
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