I was wondering how to colour the first 8 rows of a datagridview. I have managed to sort the values in descending order and I wish to have the first 8 rows coloured to highlight the top 8 to the user, and I'm not sure how to go about doing this.
Dim count As Integer
For count = 0 To datagridsort.RowCount - 1
Do
datagridsort.Rows(0).Cells(0).Style.BackColor = Color.Coral
datagridsort.Rows(0).Cells(1).Style.BackColor = Color.Coral
Loop Until count = 8
Next
In the code you posted in your comment, you were never using the count variable. You were only updated the first row every time. Try it like this:
For i As Integer = 0 To Math.Min(datagridsort.RowCount - 1, 7)
For j As Integer = 0 To datagridsort.ColumnCount - 1
datagridsort.Rows(i).Cells(j).Style.BackColor = Color.Coral
Next
Next
Related
I want to find and sum qty value of searched id in data grid view column am using this code
Dim tqty As Double
For Each row As DataGridViewRow In dgv.Rows
If row.Cells.Item(0).Value = cmbItemCode.Text Then
tqty += row.Cells.Item(4).Value
Textbox1.text=tqty
Exit For
End If
Next
The problem is that Textbox1 shows only one top searched row value. For example
id item name qty
1 abc 4
2 xyz 10
1 abc 10
Textbox1 shows the Result only 4.
As soon as you hit the first value, you exit the for statement. Therefore you never get pass the first value. Erase the Exit For it should work.
If DataGridView2.RowCount > 1 Then
Dim tqty As Integer = 0
'if you have the other column to get the result you could add a new one like these above
For index As Integer = 0 To DataGridView2.RowCount - 1
amount += Convert.ToInt32(DataGridView2.Rows(index).Cells(2).Value)
'if you have the other column to get the result you could add a new one like these above (just change Cells(2) to the one you added)
Next
TextBox1.Text = tqty
Dim i As Long
Dim rows As Long
Dim rng3 As Range
rows = rng3.rows.Count
For i = rows To 1 Step (-1)
Does anyone know how this loop works? I'm confused on the meaning of rows To 1 Step (-1).
from high number To 1 adding (-1) each iteration
Note: It's adding because + AND - in mathematical logic evaluate to a -
If rows = 10 then
for i = 10 to 1 step -2 would mean loop back from 10 to 1 subtracting 2 from the i in each loop cycle.
adding a Debug.Print i inside the loop may give you a better clue.
Note: turn ON the Immediate Window hitting CTRL+G or View => Immediate Window from the VBE menu bar
An example loop increasing by 3 on each cycle.
for i = 1 to 10 step 3
debug.print i
next i
Usage
The step-back technique is mostly used when deleting rows from a spreadsheet.
To see the logic in practice see the following
How to select and delete every 3rd column
Delete entire excel column if all cells are zeroed
Excel VBA - Scan range and delete empty rows
When deleting rows, it is often common practise to start at the end and step backwards, this is so no rows are skipped.
Dim i As Long
Dim rows As Long
Dim rng3 As Range
rows = rng3.rows.Count
For i = rows To 1 Step (-1)
'delete row if "delete" is in column 1
If rng3.cells(i,1).Value = "delete" Then
rng3.Rows(i).EntireRow.Delete
End If
next i
Dim i as Integer
For i = 1 To 14 Step 3
Debug.Print i
Next i
In above code loop will iterate from 1 to 14 increment with 3 so output will be like
1 4 7 10 13
It means it can not cross 14 that is limit.
So whatever value is provided in step it will add into the variable use for looping purpose. Here
i = i +3
But in For loop in VBA, Step value can not be changed dynamically. For example:
Dim i As Integer
For i = 1 To 10 Step i
Debug.Print i
Next i
Here, before starting iteration Step is equal to the value of i that is the default value i.e. 0. So i will increment like below:
i = i+ i => i = i+0
So i will not increment here and loop will iterate for ever.
Now for below code:
Dim i as Integer
For i = 1 To 14 Step i+1
Debug.Print i
Next i
i will increment like :
i=i+(i+1) => i= i+(0+1) =>i = i+1
so it will increment by 1 and output will be 1 2 3 .... 14
Now for below code :
Dim i As Integer
i = 3
For i = 1 To 10 Step i
Debug.Print i
Next i
here, i is equal to 3 before loop execution, so Step value will be 3, but loop will start with i = 1 and will increment with 3 through out the loop.
here,
i = i+3
so output will be 1 4 7 10.
Now for some other variable:
Dim i As Integer
Dim j As Integer
j = 2
For i = 1 To 10 Step j
Debug.Print i
j = i
Next i
in above code Step value will be 2, so i will increment by 2 for every iteration whether j is modifying inside loop or not, it will not impact Step value, so output will be
1 3 5 7 9
Please correct me if I miss anything or something is wrong in this. Also suggest if there is any way for dynamic looping using For loop in VBA.
I've a listview that dynamically populates values between two columns in this fashion:
column 1 | column 2
value1 | value 2
value3 | value 4
however I'm unable to select any values in column 2 - is there a property of the listview that's preventing me from doing this or is it the way I populate these columns? Here's my code to populate the column:
For k = 0 To UBound(tempValues)
Dim itm As New ListViewItem(tempValues(k))
If k Mod 2 = 0 Then
listview1.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize)
itm.SubItems.Add(tempValues(k + 1))
listview1.Items.Add(itm)
End If
listview1.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize)
Next
Any ideas?
The closest I can see for this is to set listView1.FullRowSelect = true (I assume you have listView1.View = View.Details?)
This however will only give you full row selecting - Remember the 2nd column represents the 1st Sub Item of the listview's items.
If you want multiple columns of data, you might be better off setting listView1.View = View.Details = View.List, which will cause it to wrap a single list of items onto multiple columns when it runs out of vertical space.
Edit:
If you use listView1.View = View.List, your population would need to change to the following:
For k = 0 To UBound(tempValues)
listview1.Items.Add(new ListViewItem(tempValues(k))
Next
listview1.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize)
But it would mean you end up with the list like so:
Value 1
Value 2
Value 3
Value 4
And if ListView was made too short to display, all these, it would wrap them:
Value 1 Value 4
Value 2
Value 3
I have a Excel matrix as below:
PID# T1 T2 T3 T4 T5 T6 T7
11 1 1
14 1 1 1
21 1 1
41 1 1 1 1
71 1
88 1 1 1
PID# is nothing but the processes, all the processes has been composed of multiple tasks. But it is not mandatory that all processes should use all the T1 - T5 tasks. In such a scenario is it possible to get the PID# which used maximum tasks. 1 used to indicate that a task has been used or not. here the PID# 41 and 88 used maximum tasks say it is 5. I need only the maximum used column count and any of the row# which used that number of columns.
NOTE
here i have used 1 to tell there is data,but in reality there are different types of data. I need to find out which row used maximum columns.But one thing if any cells for a row is blank and it is to the left,should be in the count. say for example --
<> 1 <> 1 gives the count as 4
<> <> 1 <> will give the count as 3
1 1 <> will give the count as 2 ' here I used <> used to represent the no values
EDIT
Option Explicit
Dim ArrayListTaskDetails : Set ArrayListTaskDetails = CreateObject("System.Collections.ArrayList")
Dim i,colcount
i=2
Do while i < = objExcel1.Application.WorksheetFunction.CountA(ob.Rows(1))
colcount=objExcel1.Application.WorksheetFunction.CountA(ob.Rows(i))
ArrayListTaskDetails.Add(colcount)
i=i+1
Loop
ArrayListTaskDetails.Sort()
i=ArrayListTaskDetails.Count
MsgBox("HighestColumnNumner:" & ArrayListTaskDetails(i-1))
Problem:
I can't count the blank columns for rows which don't have the contiguous value. Thus count is not produced by me correctly.
EDIT1
Here the problem is still i can't count the left blank cells if any,as those are also to be considered as used column,in which other rows can have values.Thus need to find out the the right most column which has been used by a row after which no columns has been used by any rows. Hope I am able to clear what I am looking for:
Option Explicit
Dim objExcel1
Dim strPathExcel1
Dim objSheet1,objWB,ColCount
Dim ArrayListTaskDetails : Set ArrayListTaskDetails = CreateObject("System.Collections.ArrayList")
Set objExcel1 = CreateObject("Excel.Application")
strPathExcel1 = "D:\AravoVB\.xlsx"
Set objWB = objExcel1.Workbooks.open(strPathExcel1)
Set objSheet1 = objExcel1.ActiveWorkbook.Worksheets(1)
Do Untill count > objExcel1.Application.WorksheetFunction.CountA(objSheet1.Rows(1))
Range = objSheet1.("count:count")
ColCount=objExcel1.Application.WorksheetFunction.CountIf(Range,<> "")
ArrayListTaskDetails.Add(ColCount)
Loop
ArrayListTaskDetails.Sort()
MsgBox(ArrayListTaskDetails(ArrayListTaskDetails.Count - 1))
Thanks,
Still not convinced why Vikas answer is not working for you. Try this code please. It highlights the last max value. Only flaw is that it doesn't track all the PID that has same max value. I could improve the code if you need that as well.
Code:
Option Explicit
Sub getRealUsedColumns()
Dim rngInput As Range
Dim arrInput As Variant, arrRowTotal As Variant
Dim i As Integer, j As Integer, counter As Integer, iTemp As Integer
Dim iPID As Integer, maxRowNum As Integer
arrInput = Application.WorksheetFunction.Transpose(Sheets(3).Range("B3:I8").Value2)
ReDim arrRowTotal(LBound(arrInput, 2) To UBound(arrInput, 2))
For i = LBound(arrInput, 2) To UBound(arrInput, 2)
counter = 0
For j = LBound(arrInput) + 1 To UBound(arrInput)
If arrInput(j, i) <> "" Or Not IsEmpty(arrInput(j, i)) Then
counter = counter + 1
End If
Next j
'-- most recent max value (if you have two of the same, this doens't catch)
'-- you need to save in a proper array to catch multiple PIDs with same max value
If iTemp <= counter Then
iTemp = counter
iPID = arrInput(1, i)
maxRowNum = i
End If
arrRowTotal(i) = counter
Next i
'-- Row total into the sheet output
Sheets(3).Range("J3").Resize(UBound(arrRowTotal)) = _
Application.WorksheetFunction.Transpose(arrRowTotal)
'-- highlight the max total row.
With Sheets(3).Range("B3").Offset(maxRowNum - 1, 0).Resize(1, UBound(arrInput, 1) + 1)
.Interior.Color = 200
End With
End Sub
Results:
Excel is very powerful in calculating Matrix. I would use the Excel Formula instead of Code in order to calculate it. I would add a column in the right, which would add the total number of tasks used by a process, as shown in the matrix below.
A B C D E F G
1 PID T1 T2 T3 T4 T5 Total
2 #11 1 1
3 #14 1 1 1 3
4 #21 1 1 1 1 1 5
5 #41 1 1 2
Then I will write two Array Formulas to calculate the maximum number of tasks used by a process and the name of that process.
Formula to calculate maximum tasks used in the example: =SUM(IF($G$2:$G$5=MAX($G$2:$G$5),G2:G5,0))
Formula to find the pricess which used the maximum tasks:
=OFFSET(A1,SUM(IF($G$2:$G$5=MAX($G$2:$G$5),ROW(G2:G5)-1,0)),0,1,1)
Please note that I had mentioned that I used Array formulas. In order to add array formula in Excel, you need to enter formula and then press "Ctrl+Shift+Enter" to make that formula an array formula.
Hope this helps.
Vikas B
-----------------EDIT-----------------------------------------------------
Adding the code here. I just used the sample, as show in matrix and produced the correct result.
Sub FindMax()
'assuming column 1 is the task ID and Row one has the headings.
Const LastColumn As Integer = 7 ' you can use xl end to get the last used column in the range
Const LastRow As Integer = 5
Dim rowCounter As Integer
Dim prevValue As Integer
Dim rngToTotal As Range
Dim sht As Worksheet
Dim maxRowName As String
Dim value As Integer
Dim maxValue As Integer
Set sht = ActiveSheet
For rowCounter = 2 To LastRow
Set rngToTotal = sht.Range(sht.Cells(rowCounter, 2), sht.Cells(rowCounter, LastColumn))
value = WorksheetFunction.Sum(rngToTotal)
If value > prevValue Then
maxRowName = sht.Cells(rowCounter, 1).value
maxValue = value
End If
prevValue = value
Next rowCounter
MsgBox "Process name " & maxRowName & " = " & maxValue
End Sub
I am working with Visual Basic and i need to Find the total of each column in the last row
Find the grand total in the last cell(the bottom right corner). I know how to do the total thing for this class. But this subject I am working with Arrays. I am sure if that will work with the arrays or will it. I need to have a total at the bottom for this. I am not to sure on how to do it. So if maybe someone might have website i can read on about or something I would be happy. Thanks.
Again this is what I am suppose to do:Find the total of each column in the last row
Find the grand total in the last cell(the bottom right corner).
Module Module1
Sub Main()
Dim sum(5, 4) As Integer
Dim row, col As Integer
Dim total As Integer
For row = 0 To 4
For col = 0 To 3
sum(row, col) = row + col
sum(row, 4) += row + col
Next col
Next row
For row = 0 To 5
For col = 0 To 4
Console.Write(sum(row, col) & vbTab)
Next col
Console.WriteLine()
Next row
End Sub
End Module
One big problem is that you're traversing the array by ROWS then columns.
Doing that, you'll sum up each ROW not each COLUMN.
First step would be to reverse that.
Second, you appear to be storing the col totals on row 4, so you can't step down to row 4, just row 3.
Finally, you appear to be adding the value of the row and col vars, instead of the array entry pointed to by those vars.
Something more like this
For col = 0 to 3
for row = 0 to 3
sum(4, 4) += Sum(row, col)
sum(4, col) += Sum(row, col)
...