使用Excel电子表格作为报表查看器的数据源c#

Question

我试图使用reportviewerVisual Studio提供的(Windows窗体应用程序)来创建基于Excel电子表格的报告.但是,我很难找到正确的方式来阅读/访问电子表格.

当我尝试创建新报告时,我会看到以下窗口:

我试过使用对象选项,但没有运气

问题:如何使用Excel电子表格创建报告？

我有幸运行以下代码,允许我处理文件,但我找不到将其绑定到reportviewer的方法:

Excel.Application ExcelObj = new Excel.Application();

this.openFileDialog1.FileName = "*.xls";
if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
{
    Excel.Workbook theWorkbook = ExcelObj.Workbooks.Open(
        openFileDialog1.FileName, 0, true, 5,
        "", "", true, Excel.XlPlatform.xlWindows, "\t", false, false,
        0, true);
    Excel.Sheets sheets = theWorkbook.Worksheets;
    Excel.Worksheet worksheet = (Excel.Worksheet)sheets.get_Item(1);
    for (int i = 1; i <= 10; i++)
    {
        Excel.Range range = worksheet.get_Range("A" + i.ToString(), "J" + i.ToString());
        System.Array myvalues = (System.Array)range.Cells.Value;
        string[] strArray = ConvertToStringArray(myvalues);
    }
}

欢迎任何建议/指导

Answer 1

经过大量谷歌搜索后,我设法将其拼凑在一起,并将excel表格放入基本报告中.

这要求您设置具有在Excel电子表格的第一行中指定的列名称的数据集,并且还要将此数据集绑定到报表中.然后您可以使用以下内容填充它:

[open file dialog code..]
try
{
    string path = this.openFileDialog1.FileName;
    if (Path.GetExtension(path) == ".xls")
    {
        oledbConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"");
    }
    else if (Path.GetExtension(path) == ".xlsx")
    {
        oledbConn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties='Excel 12.0;HDR=YES;IMEX=1;';");
    }
    oledbConn.Open();

    DataSet ds = new DataSet();

    OleDbCommand cmd = new OleDbCommand();
    cmd.Connection = oledbConn;
    cmd.CommandType = CommandType.Text;
    cmd.CommandText = "SELECT * FROM [sheet1$]";

    OleDbDataAdapter oleda = new OleDbDataAdapter();
    oleda = new OleDbDataAdapter(cmd);
    oleda.Fill(ds);
    ds.Tables[0].TableName = "DataTable1";

    this.DataTable1BindingSource.DataSource = ds;
    this.reportViewer1.RefreshReport();
}
catch (Exception ex)
{
}
finally
{
    oledbConn.Close();
}

我发现这些文章很有帮助:

Dyanmic报告来源

将excel加载到数据集中