如何将 excel 文件中的所有数据加载到 C# 文本框中？

Question

所以我试图打开一个 excel 文件并用电子表格中的所有值填充一个文本框。每当我运行我的代码时，它都会从单元格 A1 中输入值，仅此而已。我不太确定我的循环做错了什么。请帮助并提前感谢您。

private void LoadButton_Click(object sender, EventArgs e)
        {
            OpenFileDialog loadFile = new OpenFileDialog();
            if (loadFile.ShowDialog() == DialogResult.OK)
            {
                string rowsAndColumns = "";
                fileName = loadFile.FileName;
                Excel.Application myApp = new Excel.Application();
                myApp.Visible = false;
                Excel.Workbook myBook = myApp.Workbooks.Open(fileName);
                Excel.Worksheet mySheet = myBook.Sheets[1];

                object[,] words = (object[,])mySheet.UsedRange.get_Value(Excel.XlRangeValueDataType.xlRangeValueDefault);


                for (int row = 1; row <= mySheet.UsedRange.Row; row++)
                {
                    for (int column = 1; column <= mySheet.UsedRange.Column; column++)
                    {
                        rowsAndColumns += words[row, column];
                    }
                    rowsAndColumns += Environment.NewLine;
                }
                BasicTextBox.Text = rowsAndColumns;
            }
        }

Answer 1

试试这些改变：

for (int row = 1; row <= mySheet.UsedRange.Row.Count; row++)

和

for (int column = 1; column <= mySheet.UsedRange.Column.Count; column++)

和

rowsAndColumns += words[row, column].ToString();