水晶报表（WINFORM）动态添加不同属性，只需要一个Form就可以实现n多张水晶报表的显示兼打印功能

水晶报表（WINFORM）动态添加不同属性，只需要一个Form就可以实现n多张水晶报表的显示兼打印功能，另外需要一个comboBox就行了。分享代码如下

1、对于添加DataSet和Crystalreport在这里就不多说了，详细步骤可以看http://www.cnblogs.com/lvk618/p/3338510.html

2、连接数据库并实例化（全局变量）

    SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=Login;Integrated Security=True");
        DataSet1 mydata = new DataSet1();
        DataSet2 mydata1 = new DataSet2();
        SqlDataAdapter da;

3、主要功能

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)//当选择comboBox上的名称，就会触发，SelectedIndexChanged更改时发生
        {
            string cmb = this.comboBox1.Text;
          //  if (!cmb.Equals(String.Empty))
                if (cmb == "CR_push" + ".rpt")//判断
                {
                    da = new SqlDataAdapter("SELECT  * FROM  test1", conn);
                    da.TableMappings.Add("Table", "test1");
                    da.Fill(mydata, "test1");
                    CR_push cr = new CR_push();
                    cr.SetDataSource(mydata);
                    crystalReportViewer1.ReportSource = cr;
                    TextObject text = cr.ReportDefinition.ReportObjects["Text5"] as TextObject;
                    text.Text = "作者：吕坤";
                    TextObject text1 = cr.ReportDefinition.ReportObjects["Text6"] as TextObject;
                    text1.Text = "备注";
                }
                else if (cmb == "CrystalReport1" + ".rpt")
                {
                    da = new SqlDataAdapter("SELECT  药品,药品序号,规格,单位代码 FROM  INADD", conn);
                    da.TableMappings.Add("Table", "INADD");
                    da.Fill(mydata1, "INADD");
                    CrystalReport1 cr1 = new CrystalReport1();
                    cr1.SetDataSource(mydata1);
                    crystalReportViewer1.ReportSource = cr1;
                    TextObject text = cr1.ReportDefinition.ReportObjects["Text5"] as TextObject;
                    text.Text = "出单员：吕坤";
                    TextObject text1 = cr1.ReportDefinition.ReportObjects["Text6"] as TextObject;
                    text1.Text = "备注";
                }
        }

4、效果图如下