如何使用C#在Excel中新增命名表格

// Example code to retrieve all named table names using IronXL
using IronXL;

// Load the Excel workbook
var workbook = WorkBook.Load("example.xlsx");
// Select the worksheet
var workSheet = workbook.WorkSheets.First();

// Retrieve all named table names
var tableNames = workSheet.GetNamedTableNames();

// Output each table name
foreach (var name in tableNames)
{
    Console.WriteLine("Named Table: " + name);
}

Imports IronXL

' Load the Excel workbook
Dim workbook = WorkBook.Load("example.xlsx")
' Select the worksheet
Dim workSheet = workbook.WorkSheets.First()

' Retrieve all named table names
Dim tableNames = workSheet.GetNamedTableNames()

' Output each table name
For Each name In tableNames
    Console.WriteLine("Named Table: " & name)
Next

// Example code to retrieve a specific named table using IronXL
using IronXL;

// Load the Excel workbook
var workbook = WorkBook.Load("example.xlsx");
// Select the worksheet
var workSheet = workbook.WorkSheets.First();

// Retrieve a specific named table
var namedTable = workSheet.GetNamedTable("MyTable");

// Output some information about the table
Console.WriteLine("Named Table: " + namedTable.Name);
Console.WriteLine("Rows: " + namedTable.Rows);

Imports IronXL

' Load the Excel workbook
Dim workbook = WorkBook.Load("example.xlsx")
' Select the worksheet
Dim workSheet = workbook.WorkSheets.First()

' Retrieve a specific named table
Dim namedTable = workSheet.GetNamedTable("MyTable")

' Output some information about the table
Console.WriteLine("Named Table: " & namedTable.Name)
Console.WriteLine("Rows: " & namedTable.Rows)

// Advanced named table operations
using IronXL;
using System.Linq;

var workbook = WorkBook.Load("sales_data.xlsx");
var sheet = workbook.DefaultWorkSheet;

// Create a named table from existing data
var dataRange = sheet["A1:D20"];
var salesTable = sheet.AddNamedTable("MonthlySales", dataRange, true);

// Access table data for calculations
var tableRange = salesTable.TableRange;

// Sum values in a specific column (assuming column C contains numeric data)
decimal totalSales = 0;
for (int row = 2; row <= tableRange.RowCount; row++)
{
    var cellValue = sheet[$"C{row}"].DecimalValue;
    totalSales += cellValue;
}

// Add summary row
var summaryRow = tableRange.RowCount + 1;
sheet[$"B{summaryRow}"].Value = "Total:";
sheet[$"C{summaryRow}"].Value = totalSales;

// Apply formatting to the summary row
sheet[$"B{summaryRow}:D{summaryRow}"].Style.Font.Bold = true;
sheet[$"B{summaryRow}:D{summaryRow}"].Style.SetBackgroundColor("#FFE599");

workbook.SaveAs("sales_with_summary.xlsx");

Imports IronXL
Imports System.Linq

Dim workbook = WorkBook.Load("sales_data.xlsx")
Dim sheet = workbook.DefaultWorkSheet

' Create a named table from existing data
Dim dataRange = sheet("A1:D20")
Dim salesTable = sheet.AddNamedTable("MonthlySales", dataRange, True)

' Access table data for calculations
Dim tableRange = salesTable.TableRange

' Sum values in a specific column (assuming column C contains numeric data)
Dim totalSales As Decimal = 0
For row As Integer = 2 To tableRange.RowCount
    Dim cellValue = sheet($"C{row}").DecimalValue
    totalSales += cellValue
Next

' Add summary row
Dim summaryRow = tableRange.RowCount + 1
sheet($"B{summaryRow}").Value = "Total:"
sheet($"C{summaryRow}").Value = totalSales

' Apply formatting to the summary row
sheet($"B{summaryRow}:D{summaryRow}").Style.Font.Bold = True
sheet($"B{summaryRow}:D{summaryRow}").Style.SetBackgroundColor("#FFE599")

workbook.SaveAs("sales_with_summary.xlsx")

// Example: Named table with formulas
using IronXL;
using IronXL.Styles;

var workbook = WorkBook.Create();
var sheet = workbook.CreateWorkSheet("Analysis");

// Create data structure
sheet["A1"].Value = "Item";
sheet["B1"].Value = "Quantity";
sheet["C1"].Value = "Price";
sheet["D1"].Value = "Total";

// Add sample data
for (int i = 2; i <= 6; i++)
{
    sheet[$"A{i}"].Value = $"Item {i-1}";
    sheet[$"B{i}"].IntValue = i * 10;
    sheet[$"C{i}"].DecimalValue = i * 15.99m;
    // Add formula to calculate total
    sheet[$"D{i}"].Formula = $"=B{i}*C{i}";
}

// Create named table including the formula column
var priceTable = sheet.AddNamedTable("PriceCalculations", sheet["A1:D6"], 
    showFilter: true, 
    tableStyle: TableStyle.TableStyleMedium9);

// Add a grand total formula
sheet["C7"].Value = "Grand Total:";
sheet["D7"].Formula = "=SUM(D2:D6)";
sheet["D7"].Style.Font.Bold = true;

workbook.SaveAs("table_with_formulas.xlsx");

Imports IronXL
Imports IronXL.Styles

Dim workbook = WorkBook.Create()
Dim sheet = workbook.CreateWorkSheet("Analysis")

' Create data structure
sheet("A1").Value = "Item"
sheet("B1").Value = "Quantity"
sheet("C1").Value = "Price"
sheet("D1").Value = "Total"

' Add sample data
For i As Integer = 2 To 6
    sheet($"A{i}").Value = $"Item {i - 1}"
    sheet($"B{i}").IntValue = i * 10
    sheet($"C{i}").DecimalValue = i * 15.99D
    ' Add formula to calculate total
    sheet($"D{i}").Formula = $"=B{i}*C{i}"
Next

' Create named table including the formula column
Dim priceTable = sheet.AddNamedTable("PriceCalculations", sheet("A1:D6"), 
    showFilter:=True, 
    tableStyle:=TableStyle.TableStyleMedium9)

' Add a grand total formula
sheet("C7").Value = "Grand Total:"
sheet("D7").Formula = "=SUM(D2:D6)"
sheet("D7").Style.Font.Bold = True

workbook.SaveAs("table_with_formulas.xlsx")