将参数传递给ReportViewer

时间:2013-10-09 14:17:02

标签: c# asp.net reporting-services parameters

我有以下代码:

protected void ddlCompanyList_SelectedIndexChanged(object sender, EventArgs e)
{

    string strConnectionString = ConfigurationManager.ConnectionStrings[Constants.ConnectionStringName].ConnectionString;
    string strCustomerID = CommonCode.GetCurrentCustomerID();
    string strUserID = CommonCode.GetCurrentUserID().ToString();
    DropDownList ddl = sender as DropDownList;
    string strRSReportLinkID = ddl.SelectedValue;
    using (SqlConnection connection = new SqlConnection(strConnectionString))

    {
        connection.Open();
        SqlCommand command = new SqlCommand("Test_GetReportSettingsForReport", connection);
        command.CommandType = CommandType.StoredProcedure;
        command.Parameters.AddWithValue("@CustomerID", strCustomerID);
        command.Parameters.AddWithValue("@UserId", strUserID);
        command.Parameters.AddWithValue("@RSReportLinkID", strRSReportLinkID);

        SqlDataReader reader = command.ExecuteReader();

        if (reader.HasRows)
        {
            while (reader.Read())
            {
                string strURL = reader.GetValue(3).ToString();
                GetReportPath(strURL);

            }
        }

        else
        {
           /* Console.WriteLine("No rows found.");*/
        }

        reader.Close();
        connection.Close();
    }

}

protected void GetReportPath(string strURL)
{
    this.ReportViewer1.ServerReport.ReportPath = "/" + strURL;
}

很简单,每次从我的下拉列表中选择报告时,都会运行ddlCompanyList_SelectedIndexChanged,它只使用存储过程来查找从下拉列表中选择的报告的URL。然后将其传递到GetReportPath,它将报告URL传递给ReportView。

到目前为止,一切正常,但我决定在我的SSRS报告中添加CustomerID作为参数。将参数传递到存储过程很容易,但是在将参数(CustomerID)传递到报表本身时,我有点迷失。由于我编写的代码,strCustomerID会自动填充客户的ID,如果我只能将strCustomerID作为报告的参数传递,那么用户就不必手动输入自己的ID。

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有人有什么建议吗?谢谢你的帮助。

1 个答案:

答案 0 :(得分:4)

您可以使用ServerReport.SetParameters

ReportParameter p = new ReportParameter("CustomerID", strCustomerID);

this.reportViewer1.ServerReport.SetParameters(new ReportParameter[] { p });