Export HTML elements to Excel in C# - c#

I have a requirment is to export data from DB table to Excel. I'm using MVC project where from View the user click a button to call a controller action to perform the export opertaion. The DB proc returns rows where couple of columns contains HTML data like
<ul><li>Name1</li><li>Name2</li></ul>
and this should be shown in Excel cell as below
Name1Name2
How can i do this ? any kind of help is deeply appreciated.

To recap the comments:
In general it's not possible to apply any styling via code (VBA or C#) that cannot be applied through the Excel interface.
Styling possibilities in Excel are quire limited, you can set font properties (size, weight, font, etc) by character, but 'paragraph' formatting can only be set per cell if at all.
Things that can be set per cell are alignment and indent (and text wrapping)
In order to simulate the bullet list, you could use VBA code like this:
Cells(1, 1).Value = Chr(149) & " foo" & vbCrLf & Chr(149) & " bar"
Cells(1, 1).IndentLevel = 2
C# code would be very similar.
But this is as good as it gets, doing anything more complicated in a single cell is unfortunately not possible. If you have to use Excel, I suggest you have just single paragraph per cell.

Related

How to generate product receipt in winform application?

I am working on a winform application for the first time and I have a gridview which contains a list of products users have bought.
I have a Print button on click which allows the user to generate a receipt like the one below:
So here I am confused whether I should use "winform default RDLC or Crystal Report" or whether I should generate PDF and then let it print out as receipt, but I am not sure if PDF is a good option for receipt generation or not.
For Crystal Report, I have read that I need to install it and client (who will use this desktop application) had to install Crystal Report and also there is some licensing involve with Crystal Report which I don't want.
Also if I use Crystal Report then I am not sure if it would be possible to generate exactly above receipt (with table formatting) and will it be complicated?
Receipt is bit complicated so is there a better tool or way, or how should I generate receipt I have shown in above image?
Update : Printing paper total size is : 7.50 centimeter and user wants to print all the content in center.
Discount = FinalAmount - MRP;
Customer Name, Mobile No, Bill No, Payment Mode values are entered on the form by user itself.
I am having a Excel file which contains list of products and with each products I have information like ProductId,ProductName,MRP,Tax information like CGST,SGST.
Code to fill gridview from excel file based on Product Id:
using (OleDbConnection cnnxls = new OleDbConnection(strConn))
using (OleDbDataAdapter oda = new OleDbDataAdapter(query, cnnxls))
{
oda.Fill(dtProductList);
DataColumnCollection columns = dtProductList.Columns;
if (!columns.Contains("FinalAmount"))
{
dtProductList.Columns.Add(new DataColumn() { ColumnName = "FinalAmount", DataType = typeof(decimal) });
}
if (!columns.Contains("Quantity"))
{
dtProductList.Columns.Add(new DataColumn() { ColumnName = "Quantity", DataType = typeof(int) });
}
DataRow lastRow = dtProductList.Rows[dtProductList.Rows.Count - 1];
lastRow["FinalAmount"] = Convert.ToDecimal(lastRow["MRP"]);
lastRow["Quantity"] = 1;
}
Generate and print the receipts
You can use any report designer tool like RDLC Reports or Crystal Reports to generate a report. RDLC reports are good enough. You can print the RDLC report with or without showing the print dialog. You can also easily export the RDLC report manually or using the code.
If for any reason you don't want to use a reporting tool, as another option you can consider generating HTML report easily using Run-time T4 templates.
Using an RDLC report, how to show multiple fields in a single cell
You can easily use an expression to show multiple values in a single cell. Also as another option, you can use rows in a single row group and show different fields in a single column.
Example 1 - RDLC - Show multiple fields in a single column using expression
The following steps show you how you can display multiple fields in a single column using expression. I assume you have set up the data source and have ProductName, UnitPrice and Quantity fields. Then, follow these steps:
Drop a Table from toolbox on the report design surface.
In first column, first data row (not the header row), right click and choose ProductName (image)
Select the header of the second column and type UnitPrice/Quantity (image)
In second column, first data row, right click and choose Expression. (image)
In the expression window, enter the desired expression, for example:
= "UnitPrice: " & Fields!UnitPrice.Value.ToString() & System.Environment.NewLine & "Quantitye: " & Fields!Quantity.Value.ToString()
Example 2 - RDLC - Show multiple fields in a single column using row group
The following steps show you how you can display multiple fields in a single column. I assume you have set up the data source and have ProductName, UnitPrice and Quantity fields. Then, follow these steps:
Drop a Table from toolbox on the report design surface.
In first column, first data row (not the header row), right click and choose ProductName (image)
Select the header of the second column and type UnitPrice/Quantity (image)
Right click on row header of the first data row and choose Insert Row → Inside Group - Below (image)
In second column, first data row, right click and choose UnitPrice. (image)
Click on the [UnitPrice], and then press Home and type UnitPrice: (image)
Do the same for Quantity, in the next row in the group.
If you need another row in the group, repeat step 3.
You can setup borders of the cells by selecting them and setting BorderStyle individually for top, left, bottom and right.
Download
You can clone or download an example using expression here:
repository
zip file
A quick and easy way I used before was to generate a html page, and then use the html2pdf library to convert it to a pdf file.
You may also consider this approach since the RDLC reports/Crystal reports may be a overkill for your case.
The RDLC is powerful as well as Crystal reports. You may choose the rdlc which comes close in eliminating licensing costs.
Using RDLC
Data
You need to add datasets Here or data sources to the report which you will manipulate to meet the design and data you want.
Design
On design you just drag and drop controls to your taste. There is a challenge that sometimes what you see on the design may not what be you see on final output so you need to test much.
Printing
You can put a print preview or send directly to a pdf viewer using rdlc. Here is an example.
Conclusion
I think If you have your data generated well on the report, the design and layout won't be much of a problem using both rdlc and crystal reports.
UPDATE
Based on further information provided I have tried to do something that may come close to what you want to achieve.
I have used crystal reports as well as database table to simulate because of time. Otherwise the same can be achieved using rdlc.
The sample table i created
Here is the sample query and results from the database. I have made groups that can be accomodated by the crystal reports. You can do calculated text values using the same to put distinction between the Tax information as well as Transaction Memo.
Here is the final look after tweaking the design. The page layout may also be tweaked with regards to your taste.
Update.
For RDLC I think you need to add datasets for memo data and tax information. Take a look at the below if it comes close. I failed to make a preview there were components I hadn't installed.
for adding 3 columns in one cell
you have two options:
1- Use new line expression
=Fields!MyField1.Value + System.Environment.NewLine + Fields!MyField2.Value
2- Use something like subreport or grouping in rdlc.
the first option seams easier

Is there a way to add tooltip to excel cell data in c#

I am generating an excel sheet from multiple databases and wanted at particular column to add "Tooltip" to show, from where the data is being fetched.
All I want some property or method to set Tooltip of any excel cell.
At the moment I tried :
objCopy.Cells[j + Convert.ToInt16(StartRow["StartRow"]), 4].Tooltip = "From First Table";
And
objCopy.Cells[j + Convert.ToInt16(StartRow["StartRow"]), 4].setAttribute("title","From SpreadSheet");
No. Excel doesn't have tooltips. The only thing that comes close are comments.
The Range.AddComment is what you need for that.

How to adapt column width of Grid's exported Excel?

we are using the Telerik's Grid component with ASP.net (the package is called ASP.NET AJAX).
The grid is very comfortable, it offers a Export To Excel functionality.
Unfortunately the ways of customizing the Excel seem to be limited.
The question is:
How can I make the column width of the resulting excel fitting to the content of the widest cell?
Public Sub ExportGridToExcel(vGrid As RadGrid)
mIsExporting = True
vGrid.Rebind()
vGrid.ExportSettings.Excel.Format = GridExcelExportFormat.Biff
vGrid.MasterTableView.ExportToExcel()
End Sub
See here or here how to access and modify columns before export. On getting the longest string - I think you would need to query the datasource and traverse it to know. The control would have no way of knowing what data it will receive. If you expect exports to be common you can consider doing this calculation only once when data binding the grid, and storing the preferred widhts of the columns in the ViewState, Session or something. Of course, if your data is rather static, you can consider storing this infomormation about the database fields content in the database itself.

How to generate freeform rdlc reports with one page per row

Given a data set containing multiple rows, from within a .NET console application I need to generate a report on a single page for each row, sending those pages directly to the printer.
I am attempting to use Microsoft Report for this by attaching it to a data set and placing TextBoxes where I wish. Generating the report and sending it to the printer are not a problem. Unfortunately, the data only seems to be available in aggregates -- First, Sum, Last, Max, etc. I cannot latch the text box to a bare field.
Some poking around here and other sites seems to address this, but only when the data is presented in a table. One post even said without elaboration, "My mistake was using Text Boxes"
Am I using the wrong tool for what I am attempting to accomplish?
I ran into the same problem and managed to solve it. The solution seems a little convoluted to me so don't quote me on the "right" way to do this, but here is what I did:
Make sure you have a Dataset defined for your report.
Add a "Table" control to the report. This seems to be needed in order to iterate the rows in your Dataset.
Delete the header row and two of the default columns from the table so that you are left with a single row with a single column.
Expand the table to the width of your layout and make it as tall as you will need for your "free form" layout.
By default, there is a TextBox inside the table cell. Right-click the empty table cell and choose "delete" to remove that TextBox.
Drag a "Rectangle" control into the empty table cell. It seems to automatically "dock" to the width/height of the table cell.
Now you should be able to drag the fields from your DataSet (TextBoxes, etc) into the Rectangle to produce the desired layout.
Note that I am in the early stages of using this approach so I'm not sure if I am going to hit any walls... but for a basic report that uses TextBoxes and a page break after each "row" it seems to be working ok.
Or you try to use a list.
In the list you can arange textboxes (and other controls) as you want and they will be filled for each record in the recordset.
This work for me. :-)

How to Insert Values in Specific Excel Cells From DataGridView

Can you please help me to figure out how I can insert DataGridView values into a pre defined excel template (Into Specific Cells)?
I have a DataGridView on my windows Form which is getting the values from user input. Now I would like to enable users to export the DataGridView values into an excel file (A File like attached excel file).
As far as I know I have to create the headers and add them to the code programmatically but for the DataGridView part, honestly I have no idea how I can do that?
As you can see the Form (Box) is starting from B2 to K2 and end from B21 to K21 Now my question is how i can start importing values from B4 - k4 and so on?
Is there any way I can format the style of the cell (like Background color or font style and size) from C#? I mean generating a form like what is looking in attached Excel programmatically.
Thanks for your time in advance
Not sure if this is what you're looking for but ff you are using Office Interop, you can insert a 2-dimensional array into a range in Excel.
The following snippet might not be correct (no VS nearby and I haven't used excel automation for a long time) but you'll get the picture.
Excel.Range oRange = oSheet.Range("B2",Missing.Value);
oRange.Resize(myArray.GetLength(0),myArray.GetLength(1));
oRange.Value = myArray;

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