I'm working with a MSFlexGrid control in VB6, but I'm also having some problems retrieving the ColPos property for merged columns. The grid that I've generated looks something like this:
-----------------------------
| 8/17/2010 |
-----------------------------
| Column 1 | Column 2 |
-----------------------------
The first row is fixed and the two columns are merged, so both columns contain 8/17/2010 in the first row.
During the Click event, I'm positioning a text box over a cell in the second row, and when I set its Left and Top properties using the FlexGrid's ColPos and RowPos properties, I end up with the textbox positioned over column 1. This happens even if I clicked in column 2.
I've checked the Col property, and it's correctly set to 2 after clicking in the second column, but ColPos(1) and ColPos(2) both return the same value, which is the distance from column 1's left edge to the left edge of the control.
When merging is disabled on the flexgrid, the problem goes away, but I'd rather leave it on since it makes the grid a bit more readable.
Is there any way to retrieve the correct position of the selected column when another cell in the column is merged with another one, or do I need to calculate the column position manually?
Haven't found a way to do it through the control, but here's a function that I put together that does the trick. It counts backward from the selected cell until it reaches the leftmost cell it's merged with, and then adds the widths of the merged cells to the first one's position. Probably could be cleaned up some, but this does work.
Private Function RealColPos(Col As Integer, grid as MSFlexGrid)
With grid
Dim i As Integer, merged As Integer
i = Col - 1: merged = 0
Do While .ColPos(Col) = .ColPos(i)
merged = merged + 1
i = i - 1
Loop
If merged > 0 Then
RealColPos = .ColPos(Col - merged)
Do While merged > 0
RealColPos = RealColPos + .ColWidth(Col - merged)
merged = merged - 1
Loop
Else
RealColPos = .ColPos(Col)
End If
End With
End Function
Related
My JqGrid looks like this:
Staff
Room 1
Room 2
Jim
240
120
Dave
480
240
The staff and rooms are obtained from tables and are unknown in number at runtime. The figures (data) represent the total time spent by each staff in each room and are in minutes. I have all the above working.
All I want to do now is to iterate over all the data entries and change minutes (Eg: 240) to hours and minutes (EG 4h:0m). I'm ok with doing the math for the conversion, it's the looping over the cells and the reading and updating (just the displayed value) that has defeated me.
This is my code so far for the looping:
var $grid = jQuery('#statstab1grid')
var rows = $grid[0].rows
var crows = rows.length
var irow, row, cellsofrow
for (irow = 1; irow < crows; irow++)
{
row = rows[irow];
cellsofrow = row.cells;
alert('$(cellsofrow[0]).text() is ' + $(cellsofrow[0]).text())
alert('$(cellsofrow[1]).text() is ' + $(cellsofrow[1]).text())
}
The first alert outputs Jim then Dave, the second alert outputs nothing,
just the prompt. Even if I managed to access the data values, how would I write back to the grid the modified values?
It is good to post which version of jqGrid is used. This one is the important part.
The code you posted and your comments that nothing is alerted for cell index 1, can tell me that maybe you have a hidden field in your colModel, which value is empty. In this case it would be good to post your entire grid setup.
To the problem - you have a lot of options to do this conversion.
You can use custom formatter - more about this you can find here. This method is preferred.
You can use getRowData (without parameter) to get all the data in the grid and use setRowData to update the values. Be a careful with this method if you have a lot of data in the grid - it will be slowly in this case. See docs for grid methods
If your data is local (array) you can recalculate it, before to put it into the grid
I want to hide all the rows has value 1 in field "Fault" in the table
I tried
=IIF( Fields!Fault.Value = 1 , True, False)
but it's not hide , I guess because I have few row groups
Report picture
If you want to hide the whole row right click on the detail Row Visibility > Visibility > Show or hide based on an expression and write in the following code:
=IIF(Fields!Fault.Value = 1, True, False)
If the Value is 1 then the whole row now will be hidden. You can add this in a group detail row or just in the detail row.
I have a DataGridView with 3 columns.
I need the first two columns remain constant, These columns always have to be the same and the user will not be able to enter a different value to these.
The values for the two first columns of the DGV are in textBox1 and textBox2.
I need that when the user is going to add a new row in the DGV the first two columns automatically fill with these constant values and set the focus to the third column.
Thanks in advance
If you don't want the user to edit the first two columns, just set their ReadOnly property to true:
this.dataGridView1.Columns[0].ReadOnly = true;
As for your other criteria, first set the following property to limit control of when a new row is added (ex. click of a button):
this.dataGridView1.AllowUserToAddRows = false;
Then create your own method to add new rows when needed:
private void AddNewRow()
{
DataGridViewRow row = new DataGridViewRow();
row.CreateCells(this.dataGridView1);
row.Cells[0].Value = this.textBox1.Text;
row.Cells[1].Value = this.textBox2.Text;
this.dataGridView1.CurrentCell = row.Cells[2];
this.dataGridView1.BeginEdit(true);
}
Technically, you could do this when AllowUserToAddRows == true by handling the DataGridView.RowsAdded event and the above code slightly modified, but you'll get an annoying behavior where as soon as you enter one character into the new row, 3rd column, another new row is added and the editing cell loses focus (probably before you actually entered anything useful).
Say I have a tableview with 10 rows, and inside each row are two labels (labelA and labelB).
If I wanted to change the text of labelB in row 3, what would be the call to do that?
Thanks!!
Found the answer and putting it here for future reference incase anyone else runs into this.
Here is the answer code to my question
tbl.data[0].rows[2].children[1].text
tbl.data[0] = Data for the Tableview
rows[2] = Goto row 3 (rows start at 0)
children[1] = Goto the second child (again the first label would be child 0 and the second would be child 1)
text = the actual text of the label
On a form I have 4 MSFlexGrids.
The top grid contains dynamic data, which updates once in a while.
The user can enter data in the cells of the 3 other grids.
The data which is used to fill the top grid is received via a Winsock control, processed, and then the results are written into the appropriate cells using .TextMatrix(intRow, intCol) = strData
This works fine. The data is updated flawlessly, and the user can enter his data into the other 3 grids without any problems.
The problem occurs when I want to change the background color of some cells in the top grid.
On rare occasions the received data is very important, and the background color of the corresponding cells should change color.
I change the color of the cells with the following code:
With grd
For lngRow = 1 To .Rows - 1
'default background color
lngBack = vbWhite
'check for important values
If Val(.TextMatrix(lngRow, 1)) >= lngMax Then
'important color
lngBack = &H3040FF
End If
'select whole row
.Row = lngRow
.Col = 0
.RowSel = lngRow
.ColSel = .Cols - 1
'set the background color of the selected row
.CellBackColor = lngBack
Next lngRow
End With 'grd
The problem with this is that when the user is entering data in the other 3 grids, and the background color of a row in the top grid is changed, then the focus moves to the top grid, and the user has to enter his data anew in the grid where he was working.
Is it possible to change the background color of a cell or whole row in a MSFlexGrid without moving the focus to that grid?
So far I could not find a solution to the problem itself.
I created a work around though :
I created an enum containing a value for each grid:
Public Enum ActiveGrid
enuSystem = 0
enuTel = 1
enuRLN = 2
enuRood = 3
enuData = 4
enuCircuit = 5
End Enum
Whenever a grid gets the focus I save the corresponding enum value in a form level variable.
After coloring the required cells in the first grid I return the focus to the grid which last had it.
The user is not editing in the grid itself, but in a textbox which is laid over the cell, so there is no real problem with the grid losing the focus.
When you look closely though you see the focus leave and return quickly.
For now I will accept this work around, and its minor glitches.
Maybe in the future I can come up with a better solution, or anyone else has a better suggestion?