DataGridView Cell Formatting To Display Image Based On Another Column Value?

May 7, 2012

I have a SQL database, with some "status" strings. For every status I need to display a .bmp image .

I'm displaying the data from the database via DataGridView with LINQ. In order to display the DGV I have this code:

Me.MyTableAdapter.Fill(Me.TestdbDataSet.MyStatusList)

I was thinking to add another column named "Symbol" and based on the "Status" column to format the cells of the "Symbol" column to display an image.

I edited the DGV, and add a new image column.

I created a directory in my solution called "references" where I put all the .bmp files

I don't know how to do this. My first thought was to put an expression in the DataTable Properties, but I didn't manage to make that work. Another way is to format the cells in the "Symbol" column, and again I don't know how to do that. I tried with "Select Case ... Case ... End Select" with no success.

LE: Should I Insert the .bmp files into SQL database (varbinary(MAX)) If yes, how?

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DataGridView Cell Formatting - Red Columns Based On Values

Jan 12, 2009

I want to make a certain column of my datagridview red based on values from 2 other columns. I have a "HI" column, a "LOW" column and a "Result" Column which are all strings. Now I want to make the result column red if it's values is less than the "LOW" columns value or if it's value is greater than the "HI" columns value. I tried the following code but something is wrong because cells that shouldn't be red are red:

Private Sub dgvTests_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles dgvTests.CellFormatting
If dgvTests.Columns(e.ColumnIndex).Name.Equals("Result") Then
Dim RowValue As DataRow = TestTable.Rows(dgvTests.CurrentRow.Index)
[Code] .....

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DataGridView Cell / Column Formatting

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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Jan 22, 2009

I have a password column in my datagridview, and I'd like to display the characters as a * while editing and even displaying. I have the following code but when saving to the database the password gets saved as for example.:

Private Sub dgvUsers_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles dgvUsers.CellFormatting
If dgvUsers.Columns(e.ColumnIndex).Name.Equals("Password") Then

[code]....

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Aug 23, 2011

I have a database and I'm storing images in it along with a person's name, and other attributes. I've databound my listview with a stored procedure. I want to know how I can display an icon on a row depending on if the record for that row has a picture or not for the person...I'm not sure how to accomplish this however with the templates in asp.net

EDIT:
Here is my template and the s where I'm hoping to put them.
<ItemTemplate>

[code].....

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I want to display image next to the text in each row in a datagridview. I have searched the net in the past 1 hour, but no big success. I know, that I must override the cellpaint event, but how?

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DataGridView: Only Display Specific Length Of String In Column Cell?

Apr 24, 2012

I am using a list<of T> as a data source for a datagridview and would like to handle the draw event of the datagridview to evaluate the string length of the column cell. If larger than a particular number then I would just do something like

cell.value = string.substring(0,(whatever number I need it to be)).

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VS 2008 : Display Text And Image In DataGridView Cell?

Mar 24, 2010

My program parses chat room text. In the room there are smileys that get displayed. What I'm trying to do is parse out the image URL, download the image and put the smiley in the correct spot between the text of the message.I can do the parsing and downloading of the image into the datagridview but this only works of the column is set as an image column. Obviously due to the nature of the program I need to be able to put both text and images into the same cell. How can I do this?

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C# - Display An Image In A Datagridview Column Header?

Jul 28, 2009

At runtime, I am adding a DataGridView to a windows form. The final column is a DataGridViewImageColumn:

Dim InfoIconColumn As New DataGridViewImageColumn
MyDataGridView.Columns.Insert(MyDataGridView.Columns.Count, InfoIconColumn)

Adding the following code will get my Information Icon (bitmap) to display in each of the column cells but NOT the column header:

Dim InfoIcon As New Bitmap("C:MyPathInfoIcon.bmp")
InfoIconColumn.Image = InfoIcon

Also, it is worth noting that the image displays 'perfectly' in the cells i.e. it is sized correctly to fit the cell.

However, I cannot find a way to add the same image to the column header cell. After some googling I used the following code which placed the image in the header cell but left me with two problems:

The image did not 'auto-size' to the column headercell in the same way it did when added to the column cells. The image was slightly larger and blurred.
By using the _CellPainting event slowed down performance i.e. when hovering over the DataGridView to highlight the selected row the highlighting lagged behind where my mouse was placed.

Here is the code:

[Code]...

Does anybody know of a way to solve my problem and get a nicely sized, sharp image into a DataGridViewImageColumn headercell at runtime?

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Dec 1, 2011

I need to display the column header and cell value of the clicked cell in the data grid. For example if I click Argentina from the country column, the text box will display country = Argentina.So far the code I have is, please help me figure out the code for displaying the information in the text box

Private
Sub
DataGridView1_CellClick(ByVal
sender As

[code]....

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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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VS 2010 Datagridview Cell Formatting?

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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DataGridView Sorting Removes Cell Formatting?

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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VS 2008 Datagridview Cell Data Formatting?

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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Jun 16, 2010

I have a DataGridView bound to a DataTable that has 1+16 columns defined as Integer.The default cell style is hexadecimal 2 digits (.Format="X2").When entering in cell editing I would like to provide to the user, the possibility to write the value in decimal or hexdacimal.Hexadecimal could be written like, for example, 0x00, 0X01, x02, XFF
Decimal like 0, 1, 2, 15For this reason in EditingControlShowing I add "0x" to the TextBox value

Private Sub BankGrid_EditingControlShowing(ByVal sender As Object, ByVal e As DataGridViewEditingControlShowingEventArgs)
Dim grid As DataGridView = DirectCast(sender, DataGridView)

[code]....

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Apr 30, 2012

I have just found that if a DataGridView image column's size (height & width - in pixels) is smaller than the image's original size (in my case all images are exactly 180 x 180 pixels) at the time the cell is populated then the image is automatically being converted to a lower resolution I assume to fit the image completely within the size of the cell). How can I stop the automatic scaling of the image?

The image below show the same file displayed twice, both at 60x60 pixels ('Thumbnail' column) and a blowup of the image (PictureBox populated via the CellMouseEnter event) to it's right. You'll notice the resolution of the first blowup is far less the the second. so, what made the difference in the resolution of the blowups is? In the second blowup's case I'd first stretched the image column's width to ~180 pixels and set the row height to match (via the ColumnWidthChanged event) then populated the DataGridView then stretched the image column to 60 pixels (its minimum).

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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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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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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
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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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Jul 20, 2011

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My datagridview consists of Three columns.
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2nd column is datagridviewcheckboxcolumn
3st column is Datagridviewcolumn

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I'm filling a DGV by setting it's datasource property to a datatable, but for a DateTime columns it doesn't show seconds.

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I have a data gridview on my windows form with 4 columns. Now I identify a column as followed:

Dim item1 as String = DataGridView1.Item(1, index).Value

So now I use a number ( In this case: 1 ) for the column index, but I want to make it a bit more readable so now I want to obtain the column index based on the datagridview column name.[code]...

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I have a DataGridView that has been dragged over from the DataSource Tab. All works good.I need to have the background color of some of the cells changed based on other columns in that same row. Such as, have the background color of a cell Red if the Status column (not shown) relates to 90 days overdue. The next row may be different.

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I am having a loading problem, the problem is my formating code takes way to long to load.

What I have is a datagridview that is loaded by one table and I want to format the cells based on data from another table, the following code works, but it gets slower and slower as I add more records to the data.[code]...

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2. Is there anyway to not only make a row readonly, but make in unselectable (to skip totaled rows)?

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