How do I link an excel file to textboxes in C#?

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VS2017

Hello,

I want to import data from particular columns in an excel file to TextBoxes in C#.

I want it to be manually done. For example, I want:

A2 = TextBox1
B3 = TextBox2 and so on....

Here, I want to manually give column names to be copied.

Please help.

Regards
Aman

What I have tried:

string filepath = @"C:/Program Files/Test.xlsx";

            var excelApp = new Excel.Application();

            excelApp.Workbooks.Open(filepath);
            Excel._Worksheet workSheet = (Excel.Worksheet)excelApp.ActiveSheet;
            workSheet.Cells[2, "A"] = TitleTextBox.Text;
            workSheet.Cells[2, "B"] = PublisherTextBox.Text;
            workSheet.Cells[2, "C"] = FileNameTextBox.Text;
            workSheet.Cells[2, "D"] = IssueTextBox.Text;
            workSheet.Cells[2, "E"] = ReleaseDateTextBox.Text;
            workSheet.Cells[2, "F"] = PageCountTextBox.Text;

Posted 20-Apr-18 20:12pm

Primo Chalice

Updated 24-Apr-18 7:45am

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Comments

Richard MacCutchan 21-Apr-18 3:10am

Your code is copying textbox data into the worksheet cells, not the other way round. But either way, using textboxes for such a problem is not the best option. One of the data grid types would be better.

Primo Chalice 21-Apr-18 3:18am

Oh, I see. Sorry, my bad. So is it possible to copy the data from Excel to DataGrid and then from DataGrid to TextBox?

Richard MacCutchan 21-Apr-18 7:37am

Why do you want to use a Textbox? A datagrid will provide everything you need to manage Excel (or any other database type) data.

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Maciej Los · Answer 1 · 2018-04-24T07:46:00

Solution 1

The simplest way is to use ADO.NET[^] (OleDb[^]).
Steps to do:
1. Create OleDbConnection[^]
2. Create OleDbCommand[^]
3. Execute command to OleDbReader[^]
4. Load data to DataTable[^]
5. Bind data to DataGridView via DataSource[^]

C#

string sFileName = @"D:\MyUsers.xlsx"; //change the path to Excel file
string sConStr = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties='Excel 8.0;HDR=YES';", sFileName);


//1.
using (OleDbConnection connection = new OleDbConnection(sConStr))
{
    string sql = "SELECT * FROM [Sheet1$]";
    connection.Open();
    //2.
    OleDbCommand command = new OleDbCommand(sql, connection);

    //3.
    OleDbDataReader reader = command.ExecuteReader();

    //4.
    DataTable dt = new DataTable();
    dt.Load(reader);

    //5.
    this.dataGridView1.DataSource = dt;

    reader.Close();
    reader.Dispose();
    command.Dispose();
}

For further details, please see:
How to: Bind Data to the Windows Forms DataGridView Control | Microsoft Docs[^]

Posted 24-Apr-18 7:46am

Maciej Los

Comments

Primo Chalice 28-Apr-18 1:00am

I will surely try this out let you know :)

Maciej Los 8-May-18 4:41am

Have you tried, yet?

Primo Chalice 9-May-18 6:26am

Yes, but I finally wrote a code for TextBoxes

Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
Excel.Range range;

int rCnt;
int cCnt;
int rw = 0;
int cl = 0;

xlApp = new Excel.Application();
xlWorkBook = xlApp.Workbooks.Open(@"C:\Test\Text.xlsx");
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);

range = xlWorkSheet.UsedRange;
rw = range.Rows.Count;
cl = range.Columns.Count;

for (rCnt = 2; rCnt <= rw; rCnt++)
{
for (cCnt = 1; cCnt <= cl; cCnt++)
{
TitleTextBox.Text = (string)(range.Cells[2, 1] as Excel.Range).Value2;
PublisherTextBox.Text = (string)(range.Cells[2, 2] as Excel.Range).Value2;
FileNameTextBox.Text = (string)(range.Cells[2, 3] as Excel.Range).Value2;
IssueTextBox.Text = (string)(range.Cells[2, 4] as Excel.Range).Value2;
ReleaseDateTextBox.Text = (string)(range.Cells[2, 5] as Excel.Range).Value2;
PageCountTextBox.Text = Convert.ToString((range.Cells[2, 6] as Excel.Range).Value2);
}
}

xlWorkBook.Close(true, null, null);
xlApp.Quit();