Calculation In Textbox - X Value For Column And Y For Row
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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Mar 24, 2009
how to do an aggregate function on a column in a bindingsources filterExample
[Code].....
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Jun 30, 2010
I've spent the last three day on this. Hope someone can shed some light on the problem.I have a datagridview I which to total a column and place in a textbox. with the coding below I do get the first number and it is place correctly in the textbox but when I complete the data row and move to the next, I receive the following error. "object cannot be cast from DBNull to other type." Read and tried a lot of ideas on line , could not get any of them to work.
[Code]...
Failure is not an option! But sometime you need to look at those option.
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Mar 15, 2012
what i am trying to do is i have two textboxs which have figues in them and need the 3rd textbox to display the figure the code i am using doesnt seem to be doing anything could anyone spot it and tell me why it is not working for me
[Code]...
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Jun 7, 2009
I'm working on a program that calculates inputed number of hours * hourly rate (12.00). I am not sure how to show the result in my amount due text box.[code]...
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Jan 25, 2012
I have 5 textboxes named as txt1, txt2, txt3, txt4, txt4. Only numbers are allowed in these fields. I have another textbox named txtSubTotal which is calculated (SUM) from the values entered in the above five textboxes. What is the best way to calculate totals when numbers are entered or modified in any of the five textboxes?
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Jul 25, 2011
I have a text box in a program and it is working as I want/need it to with 1 exception... Is there a way to make it output on? I do not want it accessible to users to put information into it - it is for displaying info from an internal calculation not for input from user. If this is possible, what do I need to do to do it?
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Nov 20, 2009
Protected Sub Button4_Click1(ByVal sender As Object, ByVal e As System.EventArgs)
Dim total_rental_chargeTextBox As TextBox = FormView1.FindControl("total_rental_chargeTextBox")
[code].....
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Jan 29, 2012
How do I add 2 text boxes together textbox one = $20 and textbox two = $40 and text box 3 adds both textboxes together to display = $60?
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Apr 11, 2009
How to make auto calculation in textbox without press the button? Example i have Textbox1 + Textbox2 = Textbox3...in the textbox3 it will auto calculate the value...
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Jan 18, 2012
i need to take data input from a textbox such as this
13:41 A spider loses 20 hitpoints due to your attack.
13:41 You gained 18 experience points.
13:41 Loot of a spider: 2 gold coins, meat
13:41 A wolf loses 25 hitpoints due to your attack.
13:41 You gained 27 experience points.
[Code]...
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Dec 19, 2009
I need to store a calculation to use later and obtain a new calculation
[Code]...
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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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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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Sep 27, 2009
I'm taking one textbox and multiplying it by .01 And it works fine, so if I put in 100 and hit calculate it give me $10 (I formated the end result text bot to "C" so it gave me currency)But if I put in 5,000 and hit calculate, nothing happens.
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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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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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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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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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Aug 11, 2009
Is there a way to sync a textbox with a binding source to a datagridview?The textbox seems to be syncing to the first row of the datatable instead of the row that is selected in the datagridview.
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May 25, 2012
I use the following coding to display some data in a rich text box, I have some additional coding which checks for duplicates, sorts it etc.However would it be possible to only display the first column? My columns are separated by a space (" ").
richtextbox1.Text = System.IO.File.ReadAllText("Path")
Dim LinesList As New List(Of String)
LinesList.AddRange(richtextbox1.Lines)
[code].....
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Apr 16, 2010
im trying to add the values in column for of my datagridview and display it in a textbox, but the calculation does not kick in unless two rows are displayed. if one row is displayed in the datagridview, then my textbox remains blank.[code]......
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Mar 23, 2010
I am using vb.net and WPF. In a wpf window I am 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 .
My page looks like this:
My DataGrid:
Item Quantity Total
Shirt 2 200
Pant 1 500
Tie - -
Belt 2 100
My Textbox ---> Grand Total amount : - 800
How do I do that if I am counting from a ((Total Column )) DTG
And adding it and showing it in my (( GRAND TOTAL AMOUNT)) TEXTBOX
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Apr 1, 2011
I have a DataGridView1 where I have 6 columns and 0 rows (they are added additionaly in the application) and also have a TextBox1. How can I calculate all data from the second column to the TextBox1? For example, I'll run the application and add rows, where the text in the second column will be: (4, 8, 9, 1)... it means 4 rows...
So how can I make the value of those numbers (22) show in the TextBox1, so that it will calculate the numbers and show the sum in the TextBox1?
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