I'm trying to center a header(s) for an excel file like so:
But I am missing a few details, since the code below one writes on one line and does not expand the cell's height. Here is my code so far:
ws.Cells[$"A{row}:F{row}"].Merge = true;
ws.Cells[$"A{row}"].Style.WrapText = true;
ws.SelectedRange[$"A{row}"].Value = purchaseHistory[0].LineText;
To center the merged cell both vertical and horizontally just do this:
//Only need to grab the first cell of the merged range
ws.Cells[$"A{row}"].Style.VerticalAlignment = ExcelVerticalAlignment.Center;
ws.Cells[$"A{row}"].Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
If you need to do something with the height of the rows you will want to look at the CustomHeight setting. This should explain it: Autofit rows in EPPlus
Related
I've worked with aspose for rendering reports but i don't know how to create a diagonal line across multiple cells in excel using aspose for C#?
It can be seen as a diagonal line is laid above the cells but i do not find a solution for that.
See the following sample code on how to apply Diagonal border to a cell in the worksheet using Aspose.Cells for your reference:
e.g.
Sample code:
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Obtaining the reference of the first (default) worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[0];
// Accessing the "A1" cell from the worksheet
Aspose.Cells.Cell cell = worksheet.Cells["A1"];
// Adding some value to the "A1" cell
cell.PutValue("Test!");
// Create a style object
Style style = cell.GetStyle();
// Setting the line style of the top border
style.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thick;
// Setting the color of the top border
style.Borders[BorderType.TopBorder].Color = Color.Black;
// Setting the line style of the bottom border
style.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thick;
// Setting the color of the bottom border
style.Borders[BorderType.BottomBorder].Color = Color.Black;
// Setting the line style of the diagonal border
style.Borders[BorderType.DiagonalDown].LineStyle = CellBorderType.Thin;
// Setting the color of the diagonal border
style.Borders[BorderType.DiagonalDown].Color = Color.Black;
// Apply the border styles to the cell
cell.SetStyle(style);
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls");
You may also post your queries/comments in Aspose forums.
PS. I am working as Support developer/ Evangelist at Aspose.
I create C# programmatically excel file with merged cell. User OpenXml library. I need AutoFit merge cells as single cell. But I can't change merged cells hight. Is it possible to programmatically change?
You can't change the cell height as far as i know. But, a nice workaround would be to change the row heigth instead of the cell heigth.
Remember that in vb you can do something like this: Rows(3).RowHeight = 25;.For the C# way you should take a look at this: MSDN Reference. Hope it helps!
I am trying to apply colours to certain cells in a spreadsheet generated by Spreadsheet Gear.
My current code
var workbook = Factory.GetWorkbook();
var worksheet = workbook.Worksheets["Sheet1"];
// Set the new worksheet name
worksheet.Name = "Group export";
var cells = worksheet.Cells;
cells[0, 0].Style.Font.Size = 20;
cells[5, 0].Value = "Default Values";
cells["A6"].Style.Interior.Color = System.Drawing.Color.FromArgb(166,166,166); //Line 86
However, when opening the spreadsheet, I find that the font size and cell colour is applied to every single cell in the spreadsheet. The "Default Values" cell is only in the correct cell, however any background or font styling I apply anywhere in sheet applies to all cells.
I set up a watch for cells["A6"].Style.Interior.Color and cells["A5"].Style.Interior.Color, and a breakpoint directly after line 86 to confirm that this is where the styling happens.
Why is the styling applying to all cells in the spreadsheet?
The problem is that you are setting the Interior definition for the style (see IRange.Style.Interior and the IStyle interface) that the cell is using and not directly setting the interior for the cell itself (IRange.Interior). When you set any property at the style level, it will affect all other cells that use that same style.
Think "Normal", "Bad", "Good", etc., available from Excel's Ribbon > Home > Styles). By default, all cells utilize the "Normal" style, so by setting IRange.Style.Interior you are setting the color for all cells that utilize the "Normal" style--namely all cells in the workbook.
To set individual cell colors that don't affect any other cells using that style you would need to set the Interior directly under IRange, such as:
cells[0, 0].Font.Size = 20;
cells["A6"].Interior.Color = System.Drawing.Color.FromArgb(166,166,166);
For some reason, accessing the Style part causes it to apply a style to the entire sheet, instead of just the range. Removing "Style" fixed the issue
Instead of using
cells["A6"].Style.Interior.Color = System.Drawing.Color.FromArgb(166,166,166);
Using
cells["A6"].Interior.Color = System.Drawing.Color.FromArgb(166,166,166);
Formatted the cells correctly
My sample code to change the cell color is this. range refers to a cell range.
range.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Yellow);
If i try to change the cell color back to white. Im using this.
range.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.White);
But this erases my cell range grid lines(default color of the lines are grey) and everything becomes white. i.e.only 'range' grid lines becomes white and all other cells have the default excel grid color.
Thanks
System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Yellow);The problem is occuring because the interior colour of the range of cells is not actually white (it just appears white). Each cell by default is actually transparent (-4142).
So do this when you want to set it back to "normal":
range.Interior.Color = -4142
Edit: Best to use Constants and -4142 is equal to xlNone.
Anonymous Type
I don't understand why this doesn't work for you? Can you please refine your question? I tried the following and it worked just fine..
const Int32 transparent_Color = -4142;
//Set Yellow
var Rng = ActiveSheet.Range["D5:E7"];
Rng.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Yellow);
//Set transparent (gridlines come back, so long as you haven't got other code that is interacting with your cells)
var Rng = ActiveSheet.Range["D5:E7"];
Rng.Interior.Color = transparent_Color;
Trick: Open Excel > Developer Toolbar > Record Macro > select/highlight range > change backcolor to yellow > change backcolor to white. Now set the Style to Normal.
Stop the Macro from recording.
Then press Alt + F11 to go into VBA Editor and look at the code in Module 1.
Simply convert that code to C# - it is almost the exact same Object Model in C# as it is with VB.
I was wondering if anyone has come up with a workaround to this problem. I've noticed that the AutoFitColumns() method is failing on columns with merged cells. I've included a basic code example below:
var cellRange = worksheet.Cells[1, column, 2, column];
cells.Merge = true;
cells.Style.HorizontalAlignment = OfficeOpenXml.Style.ExcelHorizontalAlignment.Center;
cells.Value = "Some Text Goes Here";
worksheet.Cells.AutoFitColumns();
The resulting worksheet will have the cells in rows 1 and 2 merged (correctly) for the column in the column variable, but that particular cell is disregarded by the AutoFitColumns() method.
Any help would be appreciated.
Basically...
AutoFitColumns is documented to ignore merged cells. It isn't failing, at least in the sense of being defective.
AutoFit within Excel ignores merged cells, too.
Apparently up through Excel 2007, you cannot use the AutoFit feature for rows or columns that contain merged cells at all.
I've only tested with Excel 2013, which seems to behave differently:
Auto-fitting a row ignores all row-merged cells in that row.
Auto-fitting a column ignores all column-merged cells in that column.
In other words, you can use AutoFit in rows and columns with merged cells, it'll just ignore any cells that have been merged along the same dimension you're auto-fitting.
Desired effect of AutoFit w/r/t merged cells? (+ workarounds)
Finally, I'm not sure whether I see how it makes sense to auto-fit with respect to a merged cell. For example, suppose you have a merged cell at A1:B1 with content that fills a default two-column width.
If you auto-fit on column A, what is supposed to happen? Is column A supposed to become wide enough to fit all of A1:B1, sort of like treating the merged cell as if it's content existed only in A1, the top-left original cell? That might be reasonable, insofar as I can't immediately see whether strange behaviors might be implied in some circumstances.
If something like that is desired, I'd insert the content, auto-fit, and only then merge.
But what if you want to auto-fit on column B, in a situation like this:
Here, you might want column B to get wide enough so that all of the content in A1:B1 shows. (The content is just the text "well hello world".)
There's no one-liner for this, I'm afraid. Here's one way to do it, though:
Insert the content in the as-yet-unmerged top-left cell.
Save the current width of this cell's column.
Auto-fit the column.
Save the new column width.
Reset the column width to what you saved in step 2.
Merge the cells you want to merge.
Total up the widths of all your merged columns but the last one.
Subtract this total from the width you saved in step 4.
Set the last merged column's width to the result of step 8.
More generally, you can split up the total auto-fitted width from step 4 among the merged columns in any way you see fit.
To do all this, you'll want to use ExcelColumn.AutoFit and ExcelColumn.Width (and ExcelWorksheet.Column to grab the ExcelColumn objects).
But most simply...
If your content is static (or at least dynamic but not too variable in length), you can simply set reasonable fixed width(s) for the column(s) in question, distributed however you'd like.