In VB6 I could assign an Excel range directly to a variant array dim vArr as variant vArr = xlSheet.range("A2:A10").value and then work with vArr to pull out the values I needed. This doesn't work in VB 2010. Is there a replacement procedure to allow me to read in a range (perhaps large) all at once and then process the data without needing Excel?
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The following code works fine in VBA Goal of the code is to find (select) all cells in an Excel worksheet where the backgrounf cell color is Yellow (6) or Rose (38)
Sub SelectColorsViaArray()
Dim e As Variant
Dim r As Range
Dim x As Range
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3) With the above, I still do not understand how to integrate the Variant and Array differences from VB6 to VB.Net. I know what to do with all other like: Application.FindFormat.Interior.ColorIndex ... etc.
I need to read a named range into an array. Then if the value in the 1st position matches a static value, read the value in the second position. I've been looking into array's and this is what I think will work, however I get a compile error on the columns.count "constant expression required". Is it because in the DIM statement I'm attempting 2 things? This is a macro in Excel. The range name is Data1 and the string comparison is "AnyString". The second value will be an integer.
Sub macro1()
Dim rng As Range
Dim x As Integer
Dim y As Integer
rng = Range(Data1)
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OK I have been gooding for over 8 hours trying to figure this out. Bare with me I do not work with arrays much.I have brought an array in from a range in excel. This works fine. Through debugging i can see the values are brought in correctly.
Issue is I want to see if a string exists within that array (or cells).I have tried lots of things and pretty much mutilated my code but here it is:
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I tried the following : (VB.Net code)
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I have formulas in certain cells and happens to be part of the Excel range that I pull into a vb.net array and when I write the array back out to the Excel Range, I loose all the formulas in it.Is there an option to retain formulas in a .net array?
View 3 RepliesI am trying to open an exisiting excel sheet and then I want to copy a range of cells in to an array in one shot instead of looping thru cell by cell.And then I want to do some calculations and then move them to database tables.[code]...
View 3 RepliesIn VBA / VB.NET you can assign Excel range values to an array for faster access / manipulation. Is there a way to efficiently assign other cell properties (e.g., top, left, width, height) to an array? I.e., I'd like to do something like: Dim cellTops As Variant : cellTops = Application.ActiveSheet.UsedRange.Top..The code is part of a routine to programmatically check whether an image overlaps cells that are used in a workbook. My current method of iterating over the cells in the UsedRange is slow since it requires repeatedly polling for the top / left / width / height of the cells.I'm going to go ahead an accept Doug's answer as it does indeed work faster than naive iteration. In the end, I found that a non-naive iteration works faster for my purposes of detecting controls that overlap content-filled cells. The steps are basically:
(1) Find the interesting set of rows in the used range by looking at the tops and heights of the first cell in each row (my understanding is that all the cells in the row must have the same top and height, but not left and width)
(2) Iterate over the cells in the interesting rows and perform overlap detection using only the left and right positions of the cells.[code]
I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]
View 2 RepliesI am importing data from an Excel spreadsheet into an array. I want to search the array to find the location of each "cell" with text that contains a certain string (e.g. "MyTestString"). So far the best I can do is loop through each element and test it using CStr, but the code takes too long to execute (please assume all variables are properly declared):
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(1) Is there a better way than looping through each element, such as a built-in function or a lambda that will return an array containing *the location of* all string matches?
(2) Would it be faster to convert the Object array to a String array rather than using CStr on each element? If so, what is the fastest way to convert a 2-dimensional Object array to a String array?
I've considered using Excel's Find function instead, but would prefer to limit the number of Interop calls to Excel.
Mostly got these errors : The conversion of a varchar data type to a datetime data type resulted in an out-of-range value. Conversion failed when converting date and/or time from character string.
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Per this UserControl that can be added to a blank form, I would like to use the HorizUnits array below to map custom grid x coordinate from a mouse x position.For a given input value 13, what syntax would I use to obtain a value of 2 where 13 lies between Value 10 and 16 for which 2 (Name) would be the custom grid's displayed coordinate position?
View 1 RepliesHow i can convert this array to an UNLIMITED range array?
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I'm trying to copy a Range from Excel and Paste the information in powerpoint in either the HTML or the default format, however, I am having some difficulties. I am able to get the code to work for pasting the Range as an OLE Object but nothing else. The problem with doing this is that having the embedded excel documents in the powerpoint makes the file extremely large and unstable. I just need to be able to paste the information without the embedded information where it is editable (so, not as a bitmap or picture).
With ppt2Slide
Sheets(index2).Activate
Range("CP12:CT" & RangeIndex2).Copy
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dynamically get the range of cells in Excel using VS 2005 vb.net. This works oRange = oSheet.Range(oSheet.Cells("A1"), ("U281")).Select, but "U281" will not always be the last cell in the range. So how would I dynamically get the last cell with data in it with the same format as U281.
View 2 RepliesI want to pull selected data from an Excel spreadsheet.I can populate a datagrid, but want to narrow the data down.
Try
Dim MyConnection As System.Data.OleDb.OleDbConnection
Dim DtSet As System.Data.DataSet
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The following code works fine but seems to leave instances of excel.exe running in the background. How do I go about closing out this sub properly?
Private Sub ReadExcel(ByVal childform As Fone_Builder_Delux.frmData, ByVal FileName As String)
' In progress
childform.sampleloaded = False
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My objective is to select specific positions in a moving matrix of a fix range with VBA for Excel 2003. The fix range is about 5 or so columns wide and has a few thousand rows. I select a matrix of 5 to 7 rows and same number of columns. I choose a specific position number in this matrix, write that number in another sheet and move on the next matrix just below where I do the same, and this until the last line of the range.
I've tried to write a loop function but this seems to take a lot of execution time.
I have a working excel vba macro that does what I want from here and I am trying to convert it to VB.NET.
The code from VBA:
Sub bah()
''' Set Range you want to export to file
Dim rgExp As Range: Set rgExp = Range("B2:C6")
''' Copy range as picture onto Clipboard
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I am running into trouble converting the ActiveChart.Paste method. I can't get it to work in VB.NET. It either throws an error or It just leaves an empty box when I do it in VB.NET (if I add .chart before the paste it runs, but doesn't paste any values), but in VBA it fills in the values of interest. I have tried creating a chart object, but that did not seem to work either.
How to merge cells using Cell and not Range in vb.net. I'll try this code but it doesn't work
excelSheet.Cells(1, 10).Merge()
I need to import data from Excel worksheet into the VB.Net program. First, I need to get the data to some array or arraylist and secondly to show the data to user through datagridview or similar.So far, I have this
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myDataset As New DataSet()
Dim strConn As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=C:TempTest.xls ;" & "Extended Properties=Excel 8.0;"[code].....
How can I adjust the code to manage that? And how can I import the same range to variables (the range contains approx. 200 rows and 30 columns of data points) and I need the flexibility to add or delete items (rows) from the data in memory later.
I have a string array, and I need to get a range out of that, say 10 items counting from index 20.
I see there is an extension method called Take that can take a number of items from the beginning of the array, but I also need to specify the starting index.
just hoping that someone may be able to assist me to convert system.array to double() array.
Declarations are as follows:
Private f_Data As System.Array
Private f_Measures() As Double
Private f_NumberOfObservations As Integer
I then 'fill' f_Data from a range in an Excel worksheet as follows:
f_Data = wsXLSData.Range(wsXLSData.Cells(1,1), wsXLSData.Cells(8, 1)).Value
This seems to work OK. Upon checking f_Data is indeed filled with 8 double type numbers.
I then try to convert this system.array to a double array as follows:
For i As Integer = 0 To f_NumberOfObservations - 1
f_Measures(i) = f_Data(i + 1, 1).value
Next
I then get an error pointing to the line ' f_Measures(i) = f_Data(i + 1, 1).value' of type MissingMemberException was unhandled by user code'
I have : Dim cell As Excel.Range = sheet.Range("A2") Console.WriteLine("Cell references to = " + ????? ) What should I replace ????? with to get A2 printed in its place?
View 2 RepliesAim to Achieve: To get rid of borders if any in the cells of range. I have :
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Does anyone know how to copy a VB.Net list of structures to an Excel range? It's not hard to do with an array, but I can't get a list of structures to work.xample:
Structure MyStruct
Dim MyField1 as String
Dim MyField2 as Integer
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I've found ways to read from a .txt file into Excel, but (having created and loaded an Excel sheet via vb.net 2008) I want to do the opposite which is to read each cell and row into a .txt file csv format like this: "Surname","Andrew","2","Mr","Hon.Member","PERCUSSION" I guess I need some way of knowing when the last row of data ends. Once in a .txt file I can load data in a variety of ways into several ListBox/s and labels without loading and reading the original Excel file.
View 3 RepliesThis is driving me crazy. I keep getting an exception with the below code trying to usethe Find method. he error is "Unable to cast COM object of type Microsoft.Office.Interop.Excel.ApplicationClass' to interface type 'Microsoft.Office.Interop.Excel._Application'. This operation failed because theQueryInterface call on the COM component for the interface with IID '{000208D5-0000-0000-C000-000000000046}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE))".I have confirmed LastRow = 845
Imports System.IO
Imports Excel = Microsoft.Office.Interop.Excel
' open a read-only version of the data file
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Why are there no examples that I can find on how to import an excel range into SQL Server, there are plenty of example on how to import the whole spreadsheet but none for the range? I find this wierd.
What I need to do is import an excel named range into a sql table using vb.net. I have been able to import the range from excel to access but not to sql server. I used the many examples that are on the web using OLEDB for the connection part and ODBC for the command. However I continually get the cannot find and installable ISAM. I have excel 2003 and Excel 2007 on the box.
I know this can be done using SQL Server SSIS package, which I have used before, however you have to install certian SQL Server features on the box that is running the application for this to work. I want my application to be able to run on any box that it is installed on without the need for the SQL Server features to be installed.
I want to define a range in Excel, but I do NOT want to use "A" or "D" references for columns. I am making a table, and to set it's range I use:
Code:
.Range("A1:D4")
However, at the time i write the code I do not know how many columns will be involved, so I don't know if "D" is the end column. For rows this is fine, as i could write this:
Code:
.Range("A" & i & ":D" & j)
But how do I do this for columns? I really would rather not have to convert my integer number for the end column to text. If I know that the table should go from row 1 to 5 and column 1 to 10, how to I select this range?