Change A DataGridView Cell Value For Entire Column?

Jul 3, 2011

I need to pull data from a database into a DataGridView, problem is the status field is stored as a 0 or 1. Not very useful to the end user.ere is my datagridview;

Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
Try

[code].....

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Change The Background Color Of The Entire DataGridView Row Based On Cell Value?

Jan 9, 2011

how I can change the back color of a row based on a cell value using CellFormating event. The cell visible property is set to false.

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Change Font Colorfor Custom DataGridView Column/Cell?

Jun 14, 2009

I have created a custom column type for a datagridview. I have created a class for the datagridviewcolumn and a class for the datagridviewcell. Within the datagridcell class I am using the following code for the font.Dim fnt As Font = parent.InheritedStyle.Font How do I change this so that I have control over the font color for that cell? I am fine with the font just not the color.

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?moving To Next Column In A Datagridview Cell?

Oct 14, 2009

i have problem in moving to next column in a datagridview cell when enter key is pressed.It is moving to next row.

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DataGridView - How To Get Name Of Column For Current Cell

Aug 12, 2009

I want to display a contextmenu if only the cursor is in desired column. The grid should not appear in other columns.

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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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DataGridView Custom Cell/Column?

Jun 21, 2010

I believe that my questions are all going to revolve around the internal workings of DataGridView.While this is specifically written in VB.Net, it is definitely a general Visual Studio object question generically related to anyone working with .Net.I've been trying to find a forum where I can get some interaction and help to move forward.Microsoft's websites seem to be all questions and no answers.

I'm using VB.Net under Visual Studio 2005 SP2.I need to have a DataColumn that is dynamically visible based on other data in the same DataRow.After a lot of unsuccessful testing with various methods of accomplishing this, I came across the concept of Custom Cells/Columns.I started with several slightly varying examples and everything seemed to be falling into place. I tried to research each property and attribute as I incrementally learned a lot about the internal workings of Windows controls in general and DataGridView in particular.

The confusing symptom is that as I scroll down through the grid, the painting of the custom cells is at best unreliable.I created a minimum test case to eliminate as many variables as possible and I combined all of the source into one Form1.vb as follows:

[Code]...

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Particular(one Cell) Should Edit And Change The Information And Save To Database In Row Or Column

Nov 1, 2011

in row or column..particular(one cell) should edit and change the information...and save to database...

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Datagridview Checkbox Column - Last Cell Value Not Updating?

Oct 26, 2010

i am developing an application in VB.net implies some datagridview operations. the appl contains one DGVW with columns fixed programatically, one such column is Datagridviewcheckbox column. the datasource for dgvw is bounded by a datatable. the user needs to enter the values in the GUI.

supposing the user enters the 2x2 matrix values, and the user checked the checkbox last cell in the dgvw. The problem - the last cell value is not updating inside. if ii debug through code, the "cell(2,2).value" reurns null value whereas the rest of them returns the value what i entered.

if i clicked the mouse some where in the dgvw after entering the last cell value, then it is returning the exact value as expected.

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DataGridView Checkbox Column Header Cell (.Net 4.0)?

Sep 13, 2011

I'm trying to render a checkbox in a datagridview column header so that when the checkbox is checked/unchecked all the cells in that column should be checked/unchecked accordingly.The datagridview is bound to a database table but the column containing the checkbox header cell is unbound. The problem is, whenever i click the header checkbox, all the cells in that column are checked but the header checkbox itself gets invisible. If I click the HEADER (though the checkbox is invisible, still I can click the header) again, all the cells in the column below are unchecked and the header checkbox becomes visible and unchecked. Everything is happening as expected except the visibility of the header checkbox. Why is it so?

''' <summary>
''' The custom class for checkbox header cell.
''' </summary>

[code].....

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DataGridView Checkbox Column Header Cell?

Sep 13, 2011

I'm trying to render a checkbox in a datagridview column header so that when the checkbox is hecked/unchecked all the cells in that column should be checked/unchecked accordingly. The datagridview is bound to a database table but the column containing the checkbox header cell is unbound.
The problem is, whenever i click the header checkbox, all the cells in that column are checked but the header checkbox itself gets invisible.If I click the HEADER (though the checkbox is invisible, still I can click the header) again, all the cells in the column below are unchecked and the header checkbox becomes visible and unchecked. Everything is happening as expected except the visibility of the header checkbox. Why is it so?

[Code]...

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Datagridview Checkboxcell And Text Cell In Same Column?

Dec 2, 2010

i am developing an application with vb.net incorporating a Datagridview control. i know that we can make a particular column as checkbox column or text colum or button column. Is there any property/method to make one cell as checkbox cell, other as text cell and another as buttton cell for particular column within the DGVW?

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DataGridView.CellDoubleClick: On Column Header Or Cell?

Dec 29, 2008

How can I determine if the user clicked on a cell in the grid, or on the column header? In both cases the CellDoubleClick Handler is called. I want to handle only the first case.

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Lock/Disable Column/row/cell(s) In DataGridView?

Jan 5, 2012

I have a DataGridView that based on certain conditions certain columns or rows or cells need to be locked/disabled but the data in the columns or rows or cells needs to bvisibleNow let me define what I mean by lock/disable; the user cannot click on any cell that islocked/disabled, if the use is using the arrow keys the selected cell cannot move to a locked/disabled cell.So this means that setting the cell as read only will not work, the user can still place the cursor on that cell.

Private Sub DataGridView1_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DataGridView1.SelectionChanged
If DataGridView1.CurrentCell.ColumnIndex = 0 Or DataGridView1.CurrentCell.RowIndex = 0 Then

[code].....

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VS 2005 Put ListBox Over Top Cell In DataGridView Column?

May 26, 2011

I've got this working but there's something I don't understand about it. I have a DataGridView and a listbox. I want to position the listbox to be the same location as the topmost visible cell in the column the mouse is in. The end result will be that a context menu will be provided to show the user the distinct values in that column which is why I want the listbox to show over the column that it's displaying data for, just below the header cell. I'm testing right now using the CellMouseEnter event and the following code is working:

Private Sub dgvItems_CellMouseEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvItems.CellMouseEnter
If e.ColumnIndex >= 0 Then

[code].....

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Change Excel 2007 Column Cell Format To Number No Decimal?

May 26, 2011

VB.NET code to change Excel 2007 Column Cell Format from Text to a Number no Decimal.

Right now Column F shows values that look like

3E+13
3E+13

Manually changing it to a Number with No Decimal shows the correct value.
30000046605562
30000041582875

Of course I would like to automate this.

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Change Textbox Column To Combo Box Column In Datagridview

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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Change Textbox Column To Combo Box Column In Datagridview?

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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Count Cell Value Of A Datagridview Column Base On Content?

Aug 9, 2011

i have windows form datagridview that is already populated with data, what i want to achieve is to count cells with particular value in the grid.

here is what i have done so far;

Dim cellvaluescount As Integer = 0
For Each cell As DataGridViewCell In recordGrid.CurrentRow.Cells
If cell.Value.ToString = "Absent" Then 'if cell value is Absent

[Code]....

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VS 2008 Custom Datagridview Column With Cell Template

Aug 6, 2009

I have a custom dgv column and custom cell.I m trying to instance the column and pass it an instance of the cell as a template, but it's not working.my code needs a form with a button and dgv on it. When the button is click, the text in cell(0,0) should toggle from on to off. [code]

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VS 2010 Find Value Of Cell In Datagridview By Column Header Name?

Aug 25, 2011

I have been using this code to find the value of the cell in a datagrid view

Dim eRow As Integer
eRow = dgv.CurrentRow.Index
MessageBox.Show(dgv.Item(0, eRow).Value)

This works fine when the columns unless the user changes the order of the column.

So what I am trying to achieve is to find the value if the cell even if the order of the columns is changed. Is there a way instead of saying column (0, eRow) I can add (ColumnHeaderName = "NameHere", eRow) or something along those lines.

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[2008] Datagridview Password Column Cell-formatting?

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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Change Textbox Depend On Selection Change In ComboBox Column Of Datagridview?

Dec 15, 2011

I have a DGV I am working on, and I have many columns.

For example I have Columns colcase(Combobox), colreportTime(Time)

the combox shows 4 cases {A,B,C,D}

what I need to do is if the user select "C"

the the colreporttime will show the time of this change unless the old value is C

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.net - Format Cell Of Datagridview To Show Substring Of Column Text?

Aug 25, 2009

i have a column item-code, inside my database which i have bound to a datagrid view. The item-code comes in this format "A-B-C", i wish only to show the "B" part of the code, i have bound this column to the gridview and now wish to make it show the substring. I tried defaultcellstyle.format but don't know how to get a substring for it.

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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: 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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Show A Multi-column Combobox In A DataGridView Cell Using Vb 2005?

Sep 26, 2011

coding multi column combobox in a DataGridView cell. When I click the combobox cell from datagridview, It shows the multiple column such as Name, address and telephone. When I choose the item, it will return the value.

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VS 2008 DataGridView Cell Status - Check Where Column 0 And Row 0 Has Value Or Empty

Jan 22, 2010

[Code]....

IF cursor leaves column 0 and row 0 then it displays msgbox but I want to check where column 0 and row 0 has value or empty In case of empty cell it must display msg as
msgbox("this is empty cell")

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Change A DataGridView Cell Attributes?

Apr 25, 2012

I have a datagridview in which I am dynamically creating the rows and columns. I'm trying to set specific cells font to bold and not sure how to do it!Below is my code and what I'm trying to do.

[Code]...

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Change Cell Backcolor In A Datagridview

May 15, 2010

I would like to change the backcolor of the cell in a row based upon the value of a checkbox in another cell. The value of cell 2 would be a checkbox, so it is either true or false. If it is true, then color the backcolor of just cell 1?

If MyDataGridView.Rows.Count > 1 Then
For Each orow As DataGridViewRow In MyDataGridView.Rows
Console.WriteLine("DK {0}", orow.Index)[code]......

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