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Documentation(992532): FAQ for how to handle excel formulas stored as strings using cell type validation #305

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3 changes: 3 additions & 0 deletions ...stored as text handling/.NET/FormulaStoredAsTextHandling/FormulaStoredAsTextHandling.slnx
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<Solution>
<Project Path="FormulaStoredAsTextHandling/FormulaStoredAsTextHandling.csproj" />
</Solution>
23 changes: 23 additions & 0 deletions ...ormulaStoredAsTextHandling/FormulaStoredAsTextHandling/FormulaStoredAsTextHandling.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net9.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="Syncfusion.XlsIO.Net.Core" Version="*" />
</ItemGroup>

<ItemGroup>
<None Update="Output\*">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
<None Update="Data\*">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>

</Project>
Empty file added ...ext handling/.NET/FormulaStoredAsTextHandling/FormulaStoredAsTextHandling/Output/.gitkeep
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45 changes: 45 additions & 0 deletions ... as text handling/.NET/FormulaStoredAsTextHandling/FormulaStoredAsTextHandling/Program.cs
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using Syncfusion.XlsIO;
using Syncfusion.XlsIO.Implementation;
using static Syncfusion.XlsIO.Implementation.WorksheetImpl;

namespace FormulaStoredAsTextHandling
{
class Program
{
public static void Main(string[] args)
{
using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;

//Create a new workbook with one worksheet
IWorkbook workbook = application.Workbooks.Create(1);
IWorksheet worksheet = workbook.Worksheets[0];

//Assign a formula as text to the cell
worksheet["A1"].Text = "=SUM(2+2)";

//Get the cell type of
Syncfusion.XlsIO.Implementation.WorksheetImpl.TRangeValueType cellType =
(worksheet as WorksheetImpl).GetCellType(1, 1, false);

//Check if the cell type is string
if (cellType == TRangeValueType.String)
{
//Retrieve the formula text
string formulaText = worksheet["A1"].Text;

//Clear the cell value
worksheet["A1"].Value = string.Empty;

//Reassign the formula to the cell
worksheet["A1"].Formula = formulaText;
}

//Save the workbook
workbook.SaveAs("../../../Output/Output.xlsx");
}
}
}
}
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