Databound Datagridview Formatting?
Dec 6, 2010
I have a datagridview which is bound to a table in a database. In said table, I have a field called Date and a field called Time, among other various fields. By default, I see that VB.NET attempts to help me by formatting the Date and Time columns for me, however I would like to do it my own way. I checked the columns' DefaultCellStyle fields and found them blank. Apparently, its current behavior is defined elsewhere. How would I go about removing the default formatting that VB.NET put in place to make room for my own?
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Nov 19, 2010
All - I have a form that has two databound textboxes on it. To keep it simple, they are: Quantity & Value For BOTH of these text boxes, the TEXTCHANGED action will multiply the two and present the result in a LABEL. This works 100%.
[Code]...
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Sep 2, 2009
For BOTH of these text boxes, the TEXTCHANGED action will multiply the two and present the result in a LABEL.This works 100%.NOW - If I choose to add formatting to either of these text boxes, the calculation will not work. As one might guess, QUANTIY is formatted as NUMBERIC with zero decimal places and VALUE is formatted as CURRENCY with 2 decimal places.
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Mar 27, 2012
I have a databound textbox that I would like formatted as a phone number ((###) ###-####), instead of being displayed as 10 numbers.
I'm using this on a databound label, which works fine. The same doesn't work on a textbox, though.
phoneNumber = CDbl(lblPhoneNumber.Text)
lblPhoneNumber.Text = phoneNumber.ToString("(###) ###-####")
Anyone know of something that will work with a textbox?
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Sep 13, 2010
I have a table 'WeekPayment' bound to a DGV having following fields:
EmpID
EmpName
Wages
[code]....
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Jun 23, 2010
I'm having some problems with a data bound datagridview.My current scenario is the following..The itemSetup has tree properties {ItemNo, CompNo, LocNo}(compno locno are not required)I have a datagridview with a datasource list of itemSetup And this has two comboxes cboCompany that is bound to a list of company the selected value is bound to compno. cboLocation that is bound to a list of locations the selected value is bound to locno the location class requires the compno to create the list of location the problem I run in o is that the when the compno is Nothing the cboCompany throw a datagridview_ dataerror when the form is loaded en when a item is added it looks like the binding of the combox runs later then the value is set.
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Nov 13, 2010
I have a DataGridView bound to an Access Database. I have also added a button to allow adding a new column. However, when i save the databound datagridview, the new column doesn't save. How can I fix this?
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Dec 19, 2011
I'm working on pasting into a datagridview. I know you can't paste right into the datagridview, but that you have to paste the clipboard into the dataset. I'm having no problem with all of that. My problem happens with the arrays. Just so you can see what is going on, I'm going to post my code now.
Private Sub PasteToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PasteToolStripMenuItem.Click
If String.IsNullOrEmpty(Clipboard.GetText.ToString) Then
[Code]....
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Jan 28, 2009
I have a DataGridView on a form in VB 2005 Express, of the 10 columns i need on this DGV 6 of them will be pulled from an MSSQL DB and 4 of them i need to manually enter. One thing i have going for me (i think) is that the 4 manual columns have the same data in each row.I have been filling this DGV using a datatable, but i am not figuring out how to add manual columns and databound ones in the same DGV. My column layout would look like this:[code]some one please explain to me how i would do something like this. if you can include the datatable definitions also it would be a big help, in order for me to verify that i am at least doing that the right way.
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Nov 23, 2010
I have an editable datagridview that's been databound with dataadapter and datatable, and a normal button on a form. When i edit the dgv's cells and click the save button it fires the datagridview_cellvalidating event and if the cell validation is correct it updates and saves the current record to the datasource. Also, before save it commits change in any cell under editing.But when I use a toolstripbutton to do the same work, though it saves the dgv records but doesn't update the current change i.e. it saves the old records that are being fetched when the dgv was populated first during form load. Also, clicking the toolstripbutton doesn't fire datagridview_cellvalidating, datagridview_rowvalidating etc events.
What it seems to be is it's not commiting the change in any cell under
[Code]...
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Nov 19, 2010
My DataGridView is not sorting my date column correclty and it doesn't seem to be sorting it by String either. The column is bound to a date property, all is done using the designer.The set which I'm viewing it on is 424 entries long, there should be two entries for each date and they should be next to each other (regardless if sorting by date or string)The last few dozen entries are sorted correctly but the initial entries are not.Initially every second entry at the start is correct. Here is an extract if some of the sorting it does.(The beginning of the sorted grid is on the left, and the end of grid is on the right)
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Apr 27, 2010
I've inherited a form that has a DataGridView that is bound to a dataadapter and it is connected to a binding source. Within the DataGridView is a combo box that is bound to its own bindingsource which basically just calls a stored proc to bring back the possible values for the dropdown combo control
With a blank new row and sometimes even with an existing row, this value for the combo box can be NULL which is a legitimate value for it if no value selected. Problem is everything is so tightly bound if the user mistakinly clicks the dropdown then a value is populated and there's no way to get back to NULL
I've tried to catch the mousecelldown event and others to try to catch this before a value is selected but the Cancel=True doesn't work - I can catch the event but don't know how to return the cell to unclicked or reset it to NULL or pre selected value if NULL I know how to at a new row with the datatable and then set the combo datasource to it and I have my null blank value but with a tightly bound control how do I add this row?
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Jul 21, 2010
I have a DataGridView control that is bound to a dataset that I set up in design mode. This grid will contain addresses for a client. The relationship is 1 client to many addresses. So, when the user selects a client, I wish for this grid to populate with only the address records for that client. How do I set up in code a way for the grid to recognize this?
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Feb 7, 2010
I am having trouble adding a row to a databound datagridview on a parent form from a child form. I have two forms, one contains a datagridview that is bound to a table using 'datagridviewbindingsource' and contains an 'add' button. The second contains a checked listbox that is populated correctly and has a "Cancel" and an 'OK' button - when i check several items in the child form, i would like to hit okay and update the bindingsource of the datagridview on the first form with the checked items.
Code:
in form1 when btnAdd is clicked
dim f2 as new form2
'call it as a dialog to check for the cancel button
f2.ShowDialog()
[Code] .....
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Feb 11, 2012
In my form load event I am setting the defaultcellstyle formats. They are not taking hold anyone know why? None of the formatting that is expected in the code after I bind the datatable to the grid is getting done even though the code steps through it
Private Sub frmADRORD_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'wire the delegate function for incoming updates
AddHandler m_helper.DataUpdate, AddressOf UpdateGridInvoker
'bind the visual grid with the binding source
[code]....
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Jan 8, 2010
I have formated a column : "N2" but when it is : 1,2 or 1,3 or 2,3 .... then it OK BUT IF IT IS 0,1 OR 0,2 OR 0,.... THEN MY PROGRAM DETERMINE IT IS LETTER BEHIND ZERO , NAMELY THEY ARE 1 OR 2 OR 3.... I want it should be exactly 0,1 or 0,2...
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May 18, 2010
I am fixing up a visual basic program using visual studio 2005, specifically in visual basic. I am currently attempting to format the datagridview used to display data from a database. The values from the database being displayed are a mix of integers (used for displaying information such as number of units sold) and floating point values (used to display revenue, etc). I need to format all the values to display as integers (by simply truncating the decimal places, not rounding) as all (including the values that should already be integers which are appearing with two 0s following the decimal place). I have used the round function as follows round(value, 0, 1) which as I understand should get rid of all decimal places by simply truncating them, however I am still left with two 0s after the decimal place. Next, I went to the designer view and edited the columns property of the datagridview so that they are all set to be numeric with zero decimal places, yet the decimal still remains. I followed that by going back into the code and change any CType() that were decimal to Integer and still no change.
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Jul 28, 2011
I have set a column (which is a phone number) in the designer with the following: DataGridViewCellStyle { Format="(###)###-####" }
This seems to have no affect upon the results when it is displayed. It simply displays ########## every time. Where should I set the formatting?
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May 23, 2012
I am working on a vb6 to vb.net migration project using vs 3.5. I have a datagridview.in a particular cell of this grid, user has to enter only numeric data. but after user enter data, itshould become concainated with a $ symbol (eg: if user enter 34, the cell value should become $34). And if he/she presses the hyphen ("-") in the key board, the data (ie. $34) should become -$34 and if again presses the hyphen button in key board, the data should become $34.
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Aug 12, 2011
I loading data into datagridview from xml file. And I have a one problem: date formatting.
Datagridview shows a date like this: 2011-01-01T00:00:00+02:00
How to force him to show the date in short date format (only 01.01.2011) without a time
I've tried this code:
ds = New DataSet
ds.ReadXml("filename.xml")
Dim dv As DataView = New DataView(ds.Tables(0))
[Code]......
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Feb 28, 2012
I have a DataGridView that is showing some weird numerical data. For example, my under lying datatable of the datagridview has 4.69, but the datagridview shows 4.6899999999999999995. What is weird is it doesn't do it for every cell in the column. For example, my underlying datatable has 2.66 and the datagridview cell shows 2.66, which is correct. I should note that the underlying datatable column that contains the numbers is of floating point data type which comes from the database column and the datagridview column is TextBox. Here is what the values look like in the database, underlying datatable and datagridview.
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Jul 7, 2009
Im trying to format datagridview column to a checkbox as its column is assigned to msaccess YES/NO data type.[code]
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Jan 21, 2012
When a certain form (containing a datagridview (dgv)) is first loaded, the dgv cell formatting event is triggered by the line
dgv_WorkHistory.DataSource = ds_WorkHistory.Tables(0).DefaultView This successfully adds some background colour to a few cells in the displayed table. After this the next line of code is executed. The problem is that if I then try to load a different table (by choosing one from a listbox), the new table displays OK but without the desired formatting. Why?
Stepping through the code I find first of all that when I click on the listbox the dgv cell formatting event is instantly raised (immediately, even before any code in the listbox click event is executed). Why does clicking on the listbox trigger the cell formatting event?
Then, when execution reaches the line quoted above for the second time (remember it triggered cell formatting the first time round) it doesn't this time trigger it. The next line of code is executed instead. Why has the behaviour changed?
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Feb 25, 2011
I have a datagridview I am displaying on a form and would like to format one of the columns differently then the available formats. I have a column that is a decimal(18,2) (in the table) named "MyDecimalField". In asp.net I could do this, in the "template field" of a datagrid.
math.round(MyDecimalField / 60 , 2)
In VB.net forms I cant figure out how to do that. Basically I need to divide the cell by 60 and round that to 2 decimal places.
IE
the Cell contains this: 1283.93
I want the user to see this: 21.40
1283.93 / 60 = 21.3988333 then round it to 21.40
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May 8, 2009
I have a datagridview in a form in windows application in which I have a column which accepts date values. In this column I want user to enter numeric values alone and when the user moves to next cell the value should get formatted to date type value(ex: 05/09/09). Similarly I have another column which must accept alphabets alone.
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Apr 27, 2011
I have created a winform which is having a DataGridView control, based on some condition i am coloring few cells in red color.
' Array MismatchRecords is containing rows and column no. of each cell needs to be colored
For y = 0 To UBound(MismatchRecords)
Dim Row = CInt(Split(MismatchRecords(y), "|")(0))
[code]....
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Dec 17, 2007
I'm fairly certain I'm missing the obvious, but I'm trying to force a datagridview cell to format the contents of a cell to two decimal places when the value is changed e.g. the user enters 20 in a cell and it's formatted to 20.00 when the cell is moved away from.
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Jan 19, 2009
Is it possible in an datagridview to use different formatting for negative, positive and zerovalues?I want to show positive numbers in black, negative numbers in red, and zero-values hidden.
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Apr 17, 2010
I have a DataGridView control on a form. I have NO formatting options at Runtime. I want to change the backcolor and forecolor of the Row and Column Headers. No matter what I do in the designer, they do not change. I can change the Font, but not the colors. I am able to change cell colors, though.
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May 24, 2012
I am working on a vb6 to vb.net migration project using vs 3.5. I have a datagridview.in a particular cell of this grid, user has to enter only numeric data. but after user enter data, itshould become concainated with a $ symbol (eg: if user enter 34, the cell value should become $34). And if he/she presses the hyphen ("-") in the key board, the data (ie. $34) should become -$34 and if again presses the hyphen button in key board, the data should become $34.
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