C# 更新datagridview用作数据库excel文件
我已经使用excel将数据添加到datagridview。我不知道如何对datagridview中的所有修改使用更新功能 excel中的选项卡非常简单 ID、材料说明、制造商、制造商零件号供应商、供应商零件号、数量、位置C# 更新datagridview用作数据库excel文件,c#,excel,datagridview,updates,oledbconnection,C#,Excel,Datagridview,Updates,Oledbconnection,我已经使用excel将数据添加到datagridview。我不知道如何对datagridview中的所有修改使用更新功能 excel中的选项卡非常简单 ID、材料说明、制造商、制造商零件号供应商、供应商零件号、数量、位置 String name = "Sheet1"; String constr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + "test.xl
String name = "Sheet1";
String constr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" +
"test.xlsx" +
";Extended Properties='Excel 8.0;HDR=YES;';";
OleDbConnection con = new OleDbConnection(constr);
con.Open();
OleDbCommand oconn = new OleDbCommand("Update [" + name + "$]", con);
con.Close();
我尝试过这个,没有结果:
System.Data.OleDb.OleDbConnection MyConnection;
System.Data.OleDb.OleDbCommand myCommand = new System.Data.OleDb.OleDbCommand();
string sql = null;
MyConnection = new System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source='test.xlsx';Extended Properties=Excel 8.0;");
MyConnection.Open();
myCommand.Connection = MyConnection;
sql = "Update [Sheet1$] set id = '?' where id=?";
myCommand.CommandText = sql;
myCommand.ExecuteNonQuery();
MyConnection.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
试着这样做:
这是什么语言?C#?请将其添加到您的标签中。
private void UpadateButton_Click(object sender, EventArgs e) {
tran = null;
excelConnection = new OleDbConnection(connectionString);
excelConnection.Open(); // This code will open excel file.
strSQL = "Update [Sheet1$] set Manufacturer= '" + dgvExcelList["Manufacturer",dgvExcelList.CurrentRow.Index].Value.ToString() + "' WHERE ID = '" + dgvExcelList["ID",dgvExcelList.CurrentRow.Index].Value.ToString() + "'";
try
{
tran = excelConnection.BeginTransaction();
dbCommand = new OleDbCommand(strSQL, excelConnection);
dbCommand.ExecuteScalar();
tran.Commit();
}
catch(OleDbException ex)
{
tran.Rollback();
MessageBox.Show("error:transaction rolled back," + ex.Message);
}