I am using vb.net and I have an asp.net application where I use ExcelPackage. I wanted to know how to set the background color of a particular cell or a row of cells.
View 1 RepliesI want to set Color to specific cell in DataGridView as in this code , but didn't accept BackColor property.
Form1.DataGridView1.CurrentRow.Cells(3)......BackColor
I am having problem setting focus on specific cell in my Datagridview1 . On Form1 when clicking on cell 3 in any row, I am callig a Dialog1. However, when done working with it, and closing the Dialog1, the focus returns to cell 3 in my Datagridview1 . I like to set the focus on the next cell(4) making it the current cell.
I have tryed :
DataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect
DataGridView1.CurrentCell = DataGridView1.Item(4, e.RowIndex)
DataGridView1.CurrentCell = DataGridView1.CurrentRow.Cells(4)
And few other things, I am always getting this exception: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.
I want to have my current row stand out as the current row by virtue of the background color.I also want my current cell stand out from the row color.
in other words i want to controll the background of the current cell as well as the current row, and have these colors different from each other as wel as the background from the non current cells.
I am getting confused with the notion of the current row vs the selected row.I have tried messing with the default row style.selectedbackgroungcolor as well as the same for the default cell style, but cant get it to work the way i want.
i can almost get it if i set the selection mode to full row, but then cannot get the current cell to have a different background color.
i have built the following table in a datagrid view component using the following code: -
Private Sub BuildDataTable()
Dim dc As System.Data.DataColumn
Me.mDataTable.TableName = "Tabel 1"
[Code]....
lets say the user wishes to but 1000 into one of the "Time (ms)" cells, but i would like the max value to be 850. how do i then make the cell they attempted to change equal to 850 and display a warnning?
how do i stop them from adding more than 2 decimal places?
I am trying to set the focus in a datagridview's cell after the user enters some data and tries to tab out of the cell. I can't seem to get the focus in the cell they just edited. I can change the background color, but the focus goes to the next field in the grid. I am trying to do this in the _CellValidating event. Here is my code :
Private Sub dgvFish_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgvFish.CellValidating
[Code]....
The function CheckSampleNumber() takes the value of the cell just entered, and checks to see if it has been entered either in the current grid, OR in the database.
Setting Focus in particular cell of a datagrid
I have two datagrids in my form. I want to set focus to the particular cell of that datagrid. Result of one datagrid is to be displayed in the other one.
I am having trouble setting the focus to a particular cell in datagridview.
I have a timetable and on initialisation of the program, it compares the time in the datagridview with the current time. If the time has passed, the row is displayed in grey, if not then it is shown in black. I then want to scroll through the datagridview to focus on the first black line.
Here is the
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Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting
[Code]....
"An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll" with the note about infinite recursion.
What have I done wrong and how do I scroll through to automatically set the focus?
I am adding characters to a RichTextBox one character at a time and setting the format of that character after it is added. The following code is a distillation of the actual code but reliably repeats the problem I am having.The code should place a Blue "S", a Red "S" and a Green "S" in to the RichTextBox when i = 3.
View 2 RepliesI have a DGV which shows data of my transaction_table. There r 4 columns ID, NAME, DUE_DATE and STATUS. Let ID is 1, NAME is alizee, DUE_DATE is 25.02.2009 and status is notpaid(by deafault). Now , I want to set row color according to following condition...if
DUE_DATE >= current date(today's) and status="notpaid"then set row color= greenif elseDUE_DATE < current date(today's) and status="paid"then set row color= greenelseset row color = redBcoz
in one of my datagridview controls , All the cells of a single column can have any one of the following controls :
textbox
LinkButton
Combobox
[code].....
I have a DataGridView named grid_LivingBenefits which ReadOnly Property is set to false.
Then I have to set a certain column Readonly and set a different backcolor.
I have successfully made just one column readonly but I can't change its backcolor to make it different from the other columns.[code]...
im working in visual basic .net,i have a datagridview like this:[URL]...I want that when the user selects a whole row, only the values of the cells that have colors will be saved to textboxes, something like Textbox1.Text = cellwithcolor1, and so on with other cells that have color. Like, if we see the image, in row 3, 'AS' will be saved in textbox1, and 'CR' in textbox2.
View 7 RepliesI have a loop that will determine if a certain value is within the specification limits that I assign. The problem is, when the loop starts, I get the following exception:system.InvalidOperationException was unhandled Message=Cell provided already belongs to a grid. This operation is not valid.
I'm not sure exactly why I am getting this exception...OF COURSE the cell is already part of a grid! I just want to color it! Anyway, here is the code I am using:
Private Sub ColorAllCells()
For row As Integer = 0 to dgvCurSetLanes.Rows.Count - 1
[code]....
The exception occurs as soon as I call ColorAllCells
I have a messagebox created during run time, I want to set the color of the messagebox to White.
[Code]....
[code]How can I set the BackColor of the form? How can I use an RGB value?
View 3 RepliesMy Code:
For Each dr In dt.Rows()
If (cnt = 0) Then
tx_control2.Text = dr("Name").ToString.Trim
Else
tx_control2.Text = tx_control2.Text + Environment.NewLine + dr("Name").ToString.Trim
End If
cnt = cnt + 1
Next ' for row
Using above code to add all names from datatable to Textbox using Environment.NewLine. This is adding all names in Textbox. Now I want different color for alternate names. I used :
tx_control2.ForeColor = Color.Maroon
But above solution change the color of all names.
Is there a way to set the color of a PictureBox border? (Visual Baisc)
View 18 RepliesI'm having trouble with setting a datagridview's cell in edit mode, or rather, to let the user type some input on load of a form (as in Excel or the like).
This is my code (after the dgv has been filled):
dgvTentander.EditMode = DataGridViewEditMode.EditProgrammatically
'(or dgvTentander.EditMode = DataGridViewEditMode.EditOnEnter)
dgvMyDGV.CurrentCell = dgvMYDGV.Rows(lastrow).Cells(TeCOL_Quant)
dgvMYDGV.BeginEdit(True)
The code correctly indicates that the cell is selected, and when the page is loaded I can still se the cell selected, but the cursor doesn't appear and nothing happens when I type.
restrict users from setting focus to a specific datagridview cell in vb.net
View 8 RepliesSo I'm using VB.NET 2005 to create an ASP page. I have a calendar object and I need to find a way to change the BackColor of the cell from a database table. I've tried every way I can think of with no luck so far.This is what I have for code so far which works for some situations but not for all the ones I would like and to hard code it would be very tedious.
[Code]...
I'm having problems trying to change individual cells' colors in a datagrid. I saw a few hints which would make things easy, but unfortunately I'm working with Visual Studio 2003, so I don't have access to the newer attributes.
View 5 RepliesI'd like to check for the value in a datagridview column (firts column) and if it's "YES" then change its row color to red.The following code is not doing the job for me nor is generating an error, Can pls someone tell me what I'm doing wrong?
[Code]...
I have a datagridview which I would like to change the the color of the text in a cell if the number is negative in the Total column. This is what I have so far.
Dim rowcont As Integer = (TTLGrid.Rows.Count) - 1
For x = 0 To rowcont
Dim Total As String = TTLGrid.Rows(x).Cells(4).FormattedValue
[Code].....
I have a bunch of columns in a datagrid view (date, transaction type, amount).If the amount in a row is '150.00', I want to make that cell red.I made a Private Sub and run this after the datagridview is filled.
Private Sub ColorCells()
Dim ColumnCount As Integer
ColumnCount = dgvLedger.ColumnCount - 1[code].....
However it seems to have two bugs. When it is first run the first time when the form is loaded, it doesn't put the rows with 150.00 in it in red.If I have a button on the form and set it to run this Private Sub, then it runs through it again and will color the ones in 150 as red.If I resort the datagridview by clicking on a column, they all return to green again, and it looses the formatting.
How would I sort or filter the datagridview so that only cells that are color.red are viewable? What I have now shows all of the red and not red cells with the values <=0 else color.black. But if I were to put this on a button I would want only to see the color.red cells on the gridview.
Try
'##############################
For Each dgr As DataGridViewRow In dgProducts.Rows
'##############################
If CInt(dgr.Cells(4).Value) <= 0 Then
dgr.DefaultCellStyle.ForeColor = Color.Red
Else
dgr.DefaultCellStyle.ForeColor = Color.Black
End If
Next
i have a program thats a database that is Sql. im using vb 2010 express. would i would like to know what would be the best way if the date is older than the date in the cell then turn the cell red.
would i use something with Dategridview? i know im lost on this it cell 2 i need turned red if the date is older than todays.
I need to change the color of an oval on the user interface form based on a variable being true or faulse.
View 10 RepliesI have been using custom shapes for some time now but the pixels always have to be 100% solid or it mixes with the color I have set as transparent and its starting to get a bit annoying. Is there any way possible that I could take a png image with transparent pixels and use that as my custom shape without the transparent pixels becoming that color I chose? This is what I have: I want to put my image as the background without the purple being where the transparent pixels are.
Me.Backcolor = Color.Purple
Me.Transparencykey = Color.Purple
MVC3 VB.NET application using Itextsharp. I have a section of code that generates a pdf file everything looks great but I would like to alternate the line colors in that pdf file between 2 color so that the values are easy to follow for the person looking at it. Is there a way to set the background color of a whole line based on font size to a set color? A function I would be using this in is below:
[Code]...
I thought about just setting the background color of the line by using the y_line1 and using a modulus to determine if the color should be grey or white. But I have found no code samples anywhere about how to set a whole line background color..