打开app.config文件，在“startup”节点一个“useLegacyV2RuntimeActivationPolicy="true"”属性
复制代码 代码如下:
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
在Form1窗体中，从工具箱拖出一个Crystal Report Viewer控件，双击Form窗体，是双击Form窗体，不是Crystal Report Viewer，在后台的Form_Load事件中写入如下代码：
复制代码 代码如下:
private void Form1_Load(object sender, EventArgs e)
{
string connStr = "Data Source=.\\SqlExpress;Initial Catalog=dbTest;User ID=sa;Password=test";
SqlConnection conn = new SqlConnection(connStr);
conn.Open();
try
{
string sql = "SELECT * FROM Customer where email!='test@gmail.com'";
SqlDataAdapter sda = new SqlDataAdapter(sql, conn);
DataSet ds = new DataSet();
sda.Fill(ds, "tmpTable");
string reportPath = System.Windows.Forms.Application.StartupPath + @"\CrystalReport1.rpt";
ReportDocument rd = new ReportDocument();
rd.Load(reportPath);
rd.SetDataSource(ds.Tables[0].DefaultView);
this.crystalReportViewer1.ReportSource = rd;
}
catch (Exception ex)
{
throw new Exception(ex.Message.ToString());
}
finally
{
conn.Close();
}
}
这样就OK了
