Getting The DataGridView Calculated Field?
Jul 13, 2011
I have a DataGridView that call a stored procedure. One of the fields is a calculated field, ie Quantity * Price.When I run the stored proc on the server, the calculated field returns a result that shows 2 decimal places to the right of the decimal point. When I run the stored proc in the VB application to fill the DGV, the result in the calculated field shows up to 8 places to the right of the decimal place. Is there a way that it will show only 2 places in the application?
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Jun 30, 2009
i have data coming from sql server with two columns like total items, total packed items. Now in datagridview i want to show another column to calculate %age.Total Packed Items / Total Items Is it possible to add calculated column in datagridview?
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Apr 15, 2011
I have a gridview that displays a calculated field, based on a db source field it populates with.
can i sort by it? i can't seem to figure out how to do it?
example:
my templatefield looks like this:
<asp:TemplateField HeaderText="Category" SortExpression="category" >
<ItemTemplate>
<asp:Label runat="server" Text='<%# BuildCategory(DataBinder.Eval(Container, "DataItem.category")) %>'
ID="lblPrice"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
where category is party of the datasource, but what gets displayed is a calculated value - which is different from the category.what can i put in the "SOrtExpression" to make it sort by the new value - taht gets displayed?
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Dec 3, 2008
I have a RDLC report with a list that contains a table. I require a calculated column whose value depends on values from previous rows. Outside of a report I accomplish the same thing using code in a DataGridView's DataBindingComplete method.
From within a report how do I refer to specific cell values from previous rows? embedded code, but I have not had luck (#Error).
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Aug 4, 2011
in my tableadapter query i have a count function "COUNT(PRIMVENDOR)" to give me the number of rows in each group by:
SELECT VENALPHA, PRIMVENDOR, [GROUP], COUNT(PRIMVENDOR) AS GrpCount
FROM ViewCurrentMasterFile
WHERE (PRIMVENDOR = @VenNum)
[Code].....
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May 4, 2011
DataGridView1 is bound to a sql table. Cells(0) and (1) come from that table. Cells(2) and (3) are calculated. While debugging the code, the calculations and lookup look fine, but the results will not display in the columns. Here is the code:
Dim SeatsUsed As Integer = 0
For Each r As DataGridViewRow In DataGridView1.Rows
Try
[code]....
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Apr 21, 2010
How to Sum a field annew Summarry Row in datagridview
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Sep 9, 2011
Why won't this build and populate my datagridviewcombobox?
Me.POLLINGV2_SCHEDULEDataGridView.DataSource = Me.DataSet1
With POLLINGV2_SCHEDULEDataGridView
Dim dgvc As New DataGridViewComboBoxColumn
[code]....
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Apr 24, 2010
I am developing a new project for my daily office use using access database with vb 2005.
In this project I have one bounded datagridview and it is ready to use.
I want to alter a particular field value in the datagridview regularly. so whenever I click the rowheader that particular field should be editable with a combobox with some value, after selection of the value and leaving that particular cell it should be updated with the appropriate record in the database.
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Aug 5, 2010
I have a simple VB program that is using the IBM ADO .NET data provider. I've set this up so the data is used by a data adapter and fed with a standard DS. I've manually done the commands to acheive this in code. I tthen use the DS as the datasource for my datagridview. I'm having one issue and that is with a date field. It uses an "old" IBM date of CYYMMDD, century, month, day date in a numeric field. So my dates look like this for instance in the datagridview:
1100804
My question is this, is there any easy way to format them into mm/dd/yy after the DS has been put into datagridview but not yet displayed?
I have done this using the dataread object and can work out a format that way, but I'd have to recode what I already have done.
Some code:
' use the command & connection to fill the data adapter
adpt.SelectCommand = New iDB2Command(cmdText, Db2ConnectOSLD1F3)
' fill the tabel adapter
[Code].....
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Feb 9, 2010
how can i total numeric field in datagridview
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Dec 9, 2010
I need to be able to double-click a row or column in a row to use a field (in this case the Student ID field, the 4th column if counting form 0) to get that row from a database onto a separate form and be able to edit and save it. I have no idea how to make this happen since it is not covered in the class beyond basically displaying database data in DataGridView, I chose to use this functionality in my final project (to be fancy I guess) with the thought that it will be easy to accomplish but am finding it is not quite as easy as I thought. My current code is below;
[Code]...
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Mar 11, 2010
I'm not sure if this is simple or not, i'm still a student programmer. Basically I have a datagridview that has a date column. I'm wanting to compare the month value from a cell with the current month as an if statement condition. Something like this:
If Me.DataGridView1.Rows(i).Cells(7).Value = currentMonth then
...
End If
Cells(7) is the date cell i.e. 11/03/2010 (British date format, day, month, year) and currentMonth is, well the current month (03).
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Apr 10, 2011
how to make database field as datagridviewheader For example,I have table called subject, and have one column named subjectName. This column will hold all the subjectName, there are more than 100 subject names. E.G
subjectName: math,physics,chemistry,history
Let say a student take those subject, then how to display in datagridview something like this. (field in the subjectName appear to be datagridview header in datagridview)
I want the output something like this
studentName |math |physics | chemistry
| history| etc... |<-datagridview header
student a |
[code]....
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Nov 15, 2009
I key-in data from textbox to datagridvie..........the date data the format datatable is:
[Code]...
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Feb 23, 2010
This comparison shows the different values of the known good checksum calculation (c#) as used by my client and what I 'hoped' was the vb.net equivalent. How can I get 405 rather than 513 as I currently do?
For i = 0 To length - 2 Step 1
cksum += sendFrameData(i + 5)
Next i
[Code]....
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Oct 1, 2011
i have three cells in a datagridview third cell gives the result of multiplying first and second cell.When i reload or populate this data from datatable into that datagridview value comes like 40.00. with two decimals. For example
58.00 -------->i need only 58
58.78--------->i need exact 58.78
The only problem is to remove the decimals if they are 0.
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Feb 2, 2010
I am attempting to develop a Gradebook that one can use to modify grades and have an average calculated at the end.When you first open the form, you see the database fields in the DataGrid (socSecNumber, firstExam, secondExam, finalExam)I have a button to save the changes made here. The exam grades are null in the database.This seems to work fine, however I have a problem with the calculated column I want to add. I want it to display the socSecNumber and the average for that student. Instead, I get all four fields in addition to the semAverage field. Also, all the grades come up 250 if I fill all the fields in with 100.[code]
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May 15, 2010
i have a problem with my program i want to work with 2 color's red and green i want get the red color if the calculated - and green if it is +
[Code]...
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Dec 5, 2009
How are coordinates calculated on a form?
Consider the following code:
[Code].....
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Oct 31, 2011
im 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?
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Apr 23, 2008
This is the only code I could find and it doesnt work:
Private Sub DataGridView1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DataGridView1.MouseUp
Dim pt = New Point(e.X, e.Y)
[Code]....
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Mar 12, 2010
I have a datagridview and trying to filter recs based on a Date field. This is the
Dim ds As New AOListingDataSet
Dim da As New AOListingDataSetTableAdapters.CallwithNameTableAdapter
da.Fill(ds.CallwithName)
Dim dv As New DataView(ds.CallwithName)
dg1.DataSource = dv
[Code] .....
It works ok when filter is on other fields but brings empty on 'CallDate' date field. I have declared the 'CallDate' field in db as long date format in Access.
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Nov 29, 2010
I am trying to make part of a form program do the following When I exit a text field, I want to import some datainto a datagridview control.The columns are (1)Key, (2)Location, (3)Part Number, (4)Serial Number, (5)Description.There are up to 1000 rows of data in anyone of the spreadsheets I am working from.By using a datagridview, I can click the header and sort the data by either of the 5 columns, and when I select a data row, the Key number is reported back (for now, into a text box)I will be using the key number to further manipulate the spreadsheet after I have solved this problem.There are thousands of articles on DataGridView, and over the past 8 days, I think I have read them all. I have tried many downloadable routines, which haven't populated the DataGridView at all.Please can someone show me a simple program which will do the above task, and will give me a base to start from.I am running MS Office Pro plus 64-bit on Windows 7 and Visual studio 2010 pro
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Oct 11, 2010
Update an access database field using vb by clicking on a datagridview row?
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Jan 11, 2012
I'm just curious that how a month is calculated in the rest of the world because Differences in Months between two dates are calculated differently. In our Insurance Company, we calculate a month as below:
[Code]...
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Dec 27, 2009
I have a DataGrid as a child of a Customer Form based on a Query like this
[code]...
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Feb 20, 2011
how to change this Linq to Entities (VB.Net) query to Group by L2_ID column and aggregate the calculated column diff as Sum for the group.
[Code]...
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Mar 8, 2011
I am attempting to teach myself visual basic and I cannot figure out how to send a calculated value (on a button click) into a one-dimension array and then recall the last five values in a message box when the user exits.
Here's what I have:
Public Class frmInvoiceTotal
Dim totals(4) As Decimal
Private Sub btnCalculate_Click(ByVal sender As System.Object,
[Code]....
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Feb 17, 2011
My program is databound to an access 2007 database. I have a datagridview showing rows as part of my screen and the other part of my screen is texboxes bound to a different table.What I currently have:
1. Date in textbox from one table
2. Age in Datagridview column from another table
I need help with having a calculated date column in the datagridview that will be the textbox date + age (in days) in the datagrid column. I would also need this column to store in my database like any other field also. So if I typed in 2/17/11 into the textbox, and I typed in 2 in the age field, the calculated field would display and store 2/19/2011 in my datagrid and database. My dataset designer won't let me add a date to a string so I'm completely lost. A query calculates it easy in access but when I load the access query in my dataset it doesn't calculate anymore.
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