I have a vb.net program that is reading and writing to an excel file. I need to use the "Range" function for a specific task, but it requires the actual value of the cell. All I have is the Row and Column number which varies depending on what the user is doing. How do I get the actual cell location based off of the row/column number without hard coding it.
Example:
Row 1, Column 1 = "A1"
Row 5, Column 27 = "AA5"
In vb.net you need to convert each object explicitly as follows.
CellValue = CType(CType(CType(ExcelApp.Workbooks("WorkbookName"), Excel.Workbook).Worksheets("SheetName"), Excel.Worksheet).Cells(rowNum, colNum), Excel.Range).Value
Ideally you would already have variables for the workbook and worksheet which would make this previous statement more readable. For example:
Dim wbk As Excel.Workbook = CType(ExcelApp.Workbooks("WorkbookName"), Excel.Workbook)
Dim wst As Excel.Worksheet = CType(wbk.Worksheets("SheetName"), Excel.Worksheet)
Dim CellValue As Object = CType(wst.Cells(rowNum, colNum), Excel.Range).Value
Note: Substitute your Excel Application variable for ExcelApp.
Workbook("Name").Sheets("Name").Cells(RowVariable, ColVariable).Address
Related
How can I clear the column and row starting with a reference cell?
I used
For x = 1 To 20
Sheets(1).Columns(x).ClearContents
Next x
But I want to be able to clear the contents of all rows and columns starting with row A6 as a reference point. I cant use range since the data is dynamic and changes upon insertion of data. The data came from a csv
Since your question states "I want to be able to clear the contents of all rows and columns starting with row A6 as a reference point." Then here is a one liner using SpecialCells(xlLastCell)
ActiveSheet.Range("A6", ActiveCell.SpecialCells(xlLastCell)).Clear
If your range starts at A6 and is continuous with no blanks in Row 6 and no blanks in Column A, you could set the range like this:
'Create variables
Dim wb as Workbook
Dim ws as Worksheet
Dim rng as Range
'Initialize variables
set wb = ActiveWorkbook
set ws = ActiveSheet
lastrow = ws.Range("A6").End(xlDown).Row
lastcol = ws.Range("A6").End(xlToRight).Column
'Set the range
set rng = ws.Range(Cells(6,1),Cells(lastrow,lastcol))
'Clear contents
rng.ClearContents
This uses Range.Endproperty of the Range object. It's basically like clicking on A6 and hitting ctrl+right on your keyboard and then returning the range.
Note: If there are gaps in the range you won't get the correct result.
Effectively what I am trying to accomplish is to filter a database (all in Sheet 1) by names, which are given in column A, and then perform various data analysis on the now filtered visible data, and then copy that data to a new sheet in a given cell.
For example, filter the data in Sheet 1 by the name 'Smith' in column A and then let's say sum all of the visible data in column B and print that to cell C3 on Sheet 2. The more advanced data analysis I am sure I can tackle on my own, just want to get rolling here and I am definitely new to VBA macro coding. I have created all of these databases using Python.
The last piece of this, would be being able to loop through all of the filter criteria in column A (which I will not know before-hand and may be anywhere from 10-20 names.
Here is the code I am working with (there are likely some syntax errors in here as well):
Option Explicit
Sub Data()
Dim playername As String
Dim team As String
Dim numFilters As Integer
Dim hits As Integer
Dim src As Worksheet
Dim tgt As Worksheet
Dim filterRange As Range
Dim copyRange As Range
Dim lastRow As Long
Dim i As Integer
team = ThisWorkbook.Sheets(1).Name
numFilters = ActiveSheet.AutoFilter.Filters.Count ' I want this to capture the num of filter criteria for column A
For i = 1 To numFilters
playername = Sheets(team).Filter(i) ' This would be the filter criteria for the given iteration
ActiveSheet.Range("$A$1:$AN$5000").AutoFilter field:=1, Criteria1:=playername
' Create new sheet with name of person
Sheets.Add After:=ActiveSheet
ActiveSheet.Select
ActiveSheet.Name = playername
Set tgt = ThisWorkbook.Sheets(i + 1)
' Perform data analysis (e.g. sum column B of filtered data)
src.AutoFilterMode = False
' Find the last row with data in column A
lastRow = src.Range("A" & src.Rows.Count).End(xlUp).Row
' The range that we are auto-filtering (all columns)
Set filterRange = src.Range("A1:AN" & lastRow)
' Set the range to start in row 2 to prevent copying the header
Set copyRange = src.Range("B2:B" & lastRow)
' Copy the sum of column B to our target cell on the sheet corresponding to this iteration
Application.WorksheetFunction.Sum(copyRange.SpecialCells(xlCellTypeVisible)).Copy tgt.Range("A1")
Next i
End Sub
This is currently failing on the Application.WorksheetFunction.Sum line with the error 'Invalid qualifier'. Thanks for any help and please let me know if something needs clarified.
Please find my requirement below for which I am unable to find any solution:
1. Iterate over workSheet from workbook
2. Find all the columns containing date values using current format/type of column (Here is a trick. Worksheet is not static, it can contain any number of columns containing date values. Columns containing date values may have any name. And such worksheets can be more than one in number)
3. Apply macro on date columns for date formatting (below macro) if "Flag" value is "y"
<code>
Sub FormatDate()
If wksSecDist.Range("Flag").value = "y" Then
LastRowColA = Range("X" & Rows.Count).End(xlUp).Row
' Here I am finding total number of rows in column X
wksSecDist.Range("X2", "X" & LastRowColA).NumberFormat = "dd/mmm/yyyy"
' Here applying specified date format to Range("X2", "X10") [if last row index for column X is 10]
End If
End Sub
</code>
I am just a beginner to VBA.
Thanks in advance.
I suspect you didn't find a solution on the internet because you looked simply for a solution and not the parts needed to build your own solution.
You mention you are a VBA beginner, please take the below answer to be of educational use and begin you in getting you where you need your tool to be. Note, if it doesn't answer your question because of information that was not included, it has still answered your question and the missing information should form part of a new question. That said, lets get this function up and running.
From what you have written I have interpreted the requirement to be: -
Look over all worksheets in a workbook ('worksheets can be more than one in number')
Check every column to see if it holds a date value
If it does, set the whole column to a specific format
What is needed to accomplish this is iteration(loops), one to loop through all worksheet, and another to loop through all columns: -
The is pseudo code of the target: -
.For each Worksheet in the Workbook
..For each Column in the Worksheet
...If the Column contains dates then format it as required
..Process next column
.Process next Worksheet
We achieve this using a variable to reference a Worksheet and using a loop (For Each) to change the reference. The same goes for the columns.
Public Sub Sample()
Dim WkSht As Excel.Worksheet
Dim LngCols As Long
Dim LngCol As Long
'This loop will process the code inside it against every worksheet in this Workbook
For Each WkSht In ThisWorkbook.Worksheets
'Go to the top right of the worksheet and then come in, this finds the last used column
LngCols = WkSht.Range(WkSht.Cells(1, WkSht.Columns.Count).Address).End(xlToLeft).Column
'This loop will process the code inside it against every column in the worksheet
For LngCol = 1 To LngCols
'If the first cell contains a date then we should format the column
If IsDate(WkSht.Cells(2, LngCol)) Then
'Set right to the bottom of the sheet
WkSht.Range(WkSht.Cells(2, LngCol), WkSht.Cells(WkSht.Rows.Count, LngCol)).NumberFormat = "dd/mmm/yyyy"
End If
Next
Next
End Sub
Hopefully that has all made sense, this does work on the premise that the header row is always row 1 and there are no gaps in the columns, but these are separate issues you can approach when you're ready to.
So in MS Excel I've imported a table from a database in a SQL Server. I want to create a parameterized query where you have two cells. Say these two cells are G1 and G2. G1 takes a parameter/category and G2 takes a value from the parameter/category and queries the table you imported (essentially a WHERE clause that is dynamic from cell input). Can someone show me how to do this?
EDIT: Based on a chat session, we discovered that the first parameter is the column to be searched and the second parameter is the value to filter.
You can do what you want by filtering the table you imported.
Use the code below as your template. Modify it to reference the correct worksheets and ranges.
Sub FilterByParameter()
Dim wb As Workbook
Dim dataSheet As Worksheet
Dim parameterSheet As Worksheet
Dim rng As Range
Dim filterColumn As Long
Dim filterValue As String
Set wb = ThisWorkbook
' sheet that contains your table
Set dataSheet = wb.Sheets("Sheet1")
' sheet that contains your parameters
Set parameterSheet = wb.Sheets("Sheet2")
' range that contains your table, hard-coded here
' but can easily be set dynamically
Set rng = dataSheet.Range("A1:F78")
' get the column you are searching
filterColumn = parameterSheet.Range("G1").Value
' get the value you want to filter on
filterValue = parameterSheet.Range("G2").Value
' turn off autofilters if set
dataSheet.AutoFilterMode = False
' autofilter using your column and filter
rng.AutoFilter field:=filterColumn, Criteria1:=filterValue
' now you can do whatever you want to with the rows
' that remain after the autofilter was applied
End Sub
See Efficient way to delete entire row if... for an example of how to use the visible rows.
I have an XL file with some data to be manipulated. I think I will need to use a VB script to do this - but perhaps there is a simpler way with a formula. Just the same, could someone point out BOTH ways of achieving the following?
I have a column of numeric values (ID) in Sheet 1.
I want to use each ID as an index to lookup a list in Sheet 2.
Sheet 2 has two columns
First column is the index and Second column is the Text String
e.g.
1 Apple
2 Orange
3 Pear
What I want is to replace the column of IDs in sheet 1 with the looked up text string from Sheet 2!
Thats all...
Please help!
Not a tough situation there. Here are some solutions...
With VBA:
I know you said you're a little new with VB so I tried to explain each line as I went along. Also, the code is free-handed so forgive me if I left an error in there somewhere.
Sub replaceData()
dim i as integer, j as integer 'These are just some variables we'll use later.
dim sheetOne as worksheet, sheetTwo as worksheet, myWb as workbook
dim myData as string, myId as string
set myWB = excel.activeworkbook 'These three lines set your workbook/sheet variables.
set sheetOne = myWB.worksheets("Old Data")
set sheetTwo = myWB.worksheets("New Data")
for i = 1 to sheetTwo.usedrange.rows.count 'This loops through the rows on your second sheet.
myId = sheetTwo.cells(i,1).value 'This assigns the value for your id and the data on your second sheet.
myData = sheetTwo.cells(i,2).value
for j = 1 to sheetOne.usedrange.rows.count 'This loops through the rows on your first sheet.
if sheetOne.cells(j,1).value = myId then 'This checks each row for a matching id value.
sheetOne.cells(j,1).value = myData 'This replaces that id with the data we got from the second sheet.
end if
next j
next i
end sub
With an Excel formula:
Place the following formula in cell C1 of the first worksheet (the
sheet with the IDs you will be replacing). **Note that you will
have to replace the "InsertSheetTwoNameHere" portion with the name
of your second sheet (don't remove those single quotes though). Also
note you will need to replace the "1000" with the number of the last
used row in sheet two.
=vlookup(A1,’InsertSheetTwoNameHere’!$A$1:$B$1000,2,FALSE)
Next simply drag the handle on the cell that makes it copy itself
(whatever the heck it's called) all the way down to the end of your
range.
Next, copy those cells and then paste them over the IDs using the
Values Only setting.
Hope this helps and good luck.