Handling Data Using Cell Properties

In This Topic

The following table summarizes the ways you can get or set data in cells using the properties of the cell.

Data Description	Cell Property
As a string with formatting (for example "$1,234.56")	Text
As a string without formatting (for example "1234.45")	Value

There is no limitation on the data types of values that can be stored in cells. Cell values are assigned and retrieved using the generic Object data type. Primitive data types (for example, bool, int, double, etc.) are assigned and retrieved using boxed primitives.

The C# and Visual Basic .NET languages automatically box primitives (that is, convert primitive to object) for you as illustrated in this code.

Using Code

Use the Value property or SetValue method to add data to a cell.

Example

This example adds data to cells.

C#	Copy Code
fpSpread1.Sheets[0].Cells[0, 3].Value = 123; fpSpread1.Sheets[0].SetValue(0, 6, "abc");

VB	Copy Code
fpSpread1.Sheets(0).Cells(0, 3).Value = 123 fpSpread1.Sheets(0).SetValue(0, 6, "abc")

Example

You need to manually unbox primitives (that is, convert object to primitive) by using a cast:

C#	Copy Code
int i = (int)spread.Sheets[0].Cells[0, 3].Value; string s = (string)spread.Sheets[0].GetValue(0, 6);

VB	Copy Code
Dim i As Integer = CInt(spread.Sheets(0).Cells(0, 3).Value) Dim s As String = CStr(spread.Sheets(0).GetValue(0, 6))

Note: Empty cells return a null value (Nothing in VB) that causes the cast to fail. If there is a possibility that a cell is empty or contains a value of unknown data type then your code should check the data type prior to performing the cast or should provide an exception handler to catch the exception thrown by the failed cast.