Question

我是Windows应用程序和C＃的新手。我将C# 2015用于windows application MS-Access 2007数据库。

我已经使用表单和显示完成了CRUD操作，记录在datagridview，似乎工作正常。

现在，我想要的是将选定的rows gridview显示在报告中并打印出来。此外，我不希望它们显示为表格，而是每个记录的表格。因此，如果选择3行，则每行将打印3页。

我所做的代码如下：

customer.cs

namespace bolt
{
    class customer
    {
        public int? id { get; set; }
        public string firstName { get; set; }
        public string middleName { get; set; }
        public string lastName { get; set; }
        public string panNo { get; set; }
        public string email { get; set; }
        public string mobile { get; set; }
        public string address { get; set; }
        public int dptype { get; set; }
        public string benificiaryId { get; set; }
        public string bankName { get; set; }
        public string bankBranch { get; set; }
        public string bankAccountNo { get; set; }

        customer(int? id = null, string firstName = null, string middleName = null, string lastName = null,
            string panNo = null, string email = null, string mobile = null, string address = null, int dptype = 1,
            string benificiaryId = null, string bankName = null, string bankBranch = null, string bankAccountNo = null
            )
        {
            this.id = null;
            this.firstName = firstName;
            this.middleName = middleName;
            this.lastName = lastName;
            this.panNo = panNo;
            this.email = email;
            this.mobile = mobile;
            this.address = address;
            this.dptype = dptype;
            this.benificiaryId = benificiaryId;
            this.bankName = bankName;
            this.bankBranch = bankBranch;
            this.bankAccountNo = bankAccountNo;
        }

        public customer()
        {
        }
    }
}

在其中添加了表单frmReport和reportviewer。

添加了一个包含frmCustomer的表单datagridview。

添加了rdlc报告rptBolt.rdlc，我没有在其中添加任何控件。

在frmCustomer中，我有一个打印按钮。点击它以下代码

private void btnPrint_Click(object sender, EventArgs e)
{
    List<customer> lstCustomer = new List<customer>();


    foreach(DataGridViewRow row in dgCustomers.SelectedRows)
    {
        customer c = new customer();
        c.id = Convert.ToInt32(row.Cells[dgCustomers.Columns["Id"].Index].Value);

        lstCustomer.Add(c);
    }

    frmReport r = new frmReport();
    r.Show();
    ReportViewer v = r.Controls.Find("reportViewer1", true).FirstOrDefault() as ReportViewer;
    ReportDataSource dataset = new ReportDataSource("boltReport", lstCustomer);
    v.LocalReport.ReportEmbeddedResource = "bolt.rptBolt.rdlc";
    v.LocalReport.DataSources.Clear();
    v.LocalReport.DataSources.Add(dataset);
    v.LocalReport.Refresh();
    dataset.Value = lstCustomer;

    v.LocalReport.Refresh();

    this.Hide();
}

我已经抛出了许多教程，但每个教程都使用直接连接到数据库的报告向导和数据集，在我的情况下我使用的是列表。

让我知道我是否走错了路，或者我应该为此做些什么？您可以提供答案或至少提供一些我可能得到的信息。

Answer 1

不需要所有这些代码您只需在目标表或选择语句中添加一列并为其分配一个值，例如RSelected =1 只需将更新值保存为Re，将Re选择为1，然后您必须将Re指定为0或所需的任何值，那么您可以在SQL语句的代码中选择此值就这样）））））））

Answer 2

是否要传递查询结果，如＆＃34;选择*来自TableName＆＃34;到DataView的对象到ReportViewer？

你必须做这样的事情：

创建一个包含至少一个Tablix对象的新rdlc文件
确保新的rdlc文件的Build Action Property设置为＆＃39; Content＆＃39;并复制到输出目录以“始终复制”
创建接收查询的方法

See the method created here

创建接收查询填充的DataTable对象的方法

/// Method that return a new Tablix formatted for our file Report_Dynamic.rdlc
/// </summary>
/// <param name="datos">DataTable complete from Select statement</param>
/// <returns>New Tablix with all columns and rows from your DataTable ☺</returns>
private string CrearTablaDeReporteXML(DataTable datos)
{
    StringBuilder sb = new StringBuilder();
    sb.AppendLine("<Tablix Name='Tablix1'>");
    #region TablixBody
    sb.AppendLine("  <TablixBody>");
    #region Tablixcolumns
    sb.AppendLine("    <TablixColumns>");
    for (int i = 0; i < datos.Columns.Count; i++)
    {
        //Columns
        sb.AppendLine("      <TablixColumn>");
        sb.AppendLine("        <Width>1.06in</Width>");
        sb.AppendLine("      </TablixColumn>");
    }
    sb.AppendLine("    </TablixColumns>");
    #endregion

    #region TablixRows
    sb.AppendLine("    <TablixRows>");
    #region Row header
    sb.AppendLine("<TablixRow>");
    sb.AppendLine("<Height>0.25in</Height>");
    sb.AppendLine("<TablixCells>");
    int numeroTexto = 1000;
    for (int i = 0; i < datos.Columns.Count; i++)
    {
        sb.AppendLine("<TablixCell>");
        sb.AppendLine("<CellContents>");
        sb.AppendLine(string.Format("<Textbox Name='Textbox{0}'><CanGrow>true</CanGrow><KeepTogether>true</KeepTogether><Paragraphs><Paragraph><TextRuns><TextRun><Value>{1}</Value><Style><FontSize>8pt</FontSize><FontWeight>Bold</FontWeight></Style></TextRun></TextRuns><Style/></Paragraph></Paragraphs><rd:DefaultName>Textbox1</rd:DefaultName><Style><Border><Color>LightGrey</Color><Style>Solid</Style></Border><BackgroundColor>LightGrey</BackgroundColor><PaddingLeft>2pt</PaddingLeft><PaddingRight>2pt</PaddingRight><PaddingTop>2pt</PaddingTop><PaddingBottom>2pt</PaddingBottom></Style></Textbox>", numeroTexto, datos.Columns[i]));                
        sb.AppendLine("</CellContents>");
        sb.AppendLine("</TablixCell>");
        numeroTexto++;
    }
    sb.AppendLine("</TablixCells>");
    sb.AppendLine("</TablixRow>");
    #endregion
    #endregion

    for (int i = 0; i < datos.Rows.Count; i++)
    {
        //Rows
        sb.AppendLine("      <TablixRow>");
        sb.AppendLine("        <Height>0.25in</Height>");
        sb.AppendLine("        <TablixCells>");
        for (int j = 0; j < datos.Columns.Count; j++)
        {
            sb.AppendLine("          <TablixCell>");
            sb.AppendLine("            <CellContents>");
            sb.AppendLine(string.Format("              <Textbox Name='Textbox{0}'><CanGrow>true</CanGrow><KeepTogether>true</KeepTogether><Paragraphs><Paragraph><TextRuns><TextRun><Value>{1}</Value><Style><FontSize>8pt</FontSize></Style></TextRun></TextRuns><Style/></Paragraph></Paragraphs><rd:DefaultName>Textbox2</rd:DefaultName><Style><Border><Color>LightGrey</Color><Style>Solid</Style></Border><PaddingLeft>2pt</PaddingLeft><PaddingRight>2pt</PaddingRight><PaddingTop>2pt</PaddingTop><PaddingBottom>2pt</PaddingBottom></Style></Textbox>", numeroTexto, datos.Rows[i].ItemArray[j].ToString().Replace("&", "")));
            sb.AppendLine("            </CellContents>");
            sb.AppendLine("          </TablixCell>");
            numeroTexto++;
        }
        sb.AppendLine("        </TablixCells>");
        sb.AppendLine("      </TablixRow>");                
    }
    sb.AppendLine("    </TablixRows>");
    sb.AppendLine("  </TablixBody>");
    #endregion

    sb.AppendLine("      <TablixColumnHierarchy>");
    sb.AppendLine("<TablixMembers>");
    for (int i = 0; i < datos.Columns.Count; i++)
        sb.AppendLine("<TablixMember />");
    sb.AppendLine("</TablixMembers>");
    sb.AppendLine("</TablixColumnHierarchy>");
    sb.AppendLine("      <TablixRowHierarchy>");
    sb.AppendLine("<TablixMembers>");
    sb.AppendLine("<TablixMember><KeepWithGroup>After</KeepWithGroup></TablixMember>");
    for (int i = 0; i < datos.Rows.Count; i++)
        sb.AppendLine(string.Format("<TablixMember />"));
    sb.AppendLine("</TablixMembers>");
    sb.AppendLine("</TablixRowHierarchy>");
    sb.AppendLine("      <Top>0.05556in</Top>");
    sb.AppendLine("      <Left>0.11458in</Left>");
    sb.AppendLine("      <Height>1.25in</Height>");
    sb.AppendLine(string.Format("      <Width>8in</Width>"));
    sb.AppendLine("      <Style>");
    sb.AppendLine("        <Border>");
    sb.AppendLine("          <Style>None</Style>");
    sb.AppendLine("        </Border>");
    sb.AppendLine("      </Style>");
    sb.AppendLine("      </Tablix>");
    return sb.ToString();
}

然后，您将创建将读取旧rdlc文件的方法，并编写要用于ReportViewer对象的新文件。

此方法如下所示：

/// <summary>
    /// Read the old rdlc file and write the new one to be used for ReportViewer
    /// </summary>
    /// <param name="datos">DataTable complete from Select statement</param>
    /// <param name="rutaActualRDLC">C\Reports\Template.rdlc</param>
    /// <param name="rutaNuevaRDLC">C\Reports\NewFile.rdlc</param>
    private void LecturaRDLCXML(DataTable datos, string rutaActualRDLC, string rutaNuevaRDLC)
    {
        //Read the report file into a XMLDocument
        XmlDocument documento = new XmlDocument();
        documento.Load(rutaActualRDLC);

        //Select the node 'ReportItems' that apear when you add a Tablix element empty
        XmlNode aNode = documento.DocumentElement.FirstChild.FirstChild;

        //Override that node with your DataTable, the same DataTable you passed to a DataGridView
        aNode.InnerXml = CrearTablaDeReporteXML(datos);
        //Save the new file written
        documento.Save(rutaNuevaRDLC);
    }

最后，您必须调用您的报告并传递新的报告路径，如下所示：

private void btn_print_report(object sender, RoutedEventArgs e)
{
      //Remove the report dynamic that was create before
        string rutaNuevaRDLC = @"Reportes/rpt_dynamic_SQL_dinamico.rdlc";
        if (File.Exists(rutaNuevaRDLC))
            File.Delete(rutaNuevaRDLC);

      //Read the old and the new file
      //result is a DataTable type that contain the result of "Select * From Table"
        LecturaRDLCXML(result, @"Reportes/rpt_dynamic_SQL.rdlc", rutaNuevaRDLC);

      //Optional: if you have any other DataSources in your report
      //reportViewer.LocalReport.DataSources.Clear();
      //reportViewer.LocalReport.DataSources.Add(new ReportDataSource("DataSourceName", IEunumerableCollectionForThisDataSource));

      reportViewer.LocalReport.ReportPath = rutaNuevaRDLC;
      reportViewer.Visible = true;
      reportViewer.LocalReport.Refresh();
      reportViewer.RefreshReport();
}

我希望这篇文章可以帮助别人☺

Answer 3

 System.out.println("principalName----"+WebUtils.getCookie(httpServletRequest,  "principalName"));

C＃2015 winform datagrid视图选中行到rdlc报告

3 个答案: