c# - 分步错误处理

Question

我正在运行以下内容：-

    private void ConvertFile()

    {
        PrepElec1();
        MakeElec2();
        MakeElec3();
        MakeElec4();
        MakeElecMerged();
        SetDataSet.SetData(DtSet);
        btnConvert.Enabled = false;
        btnReport.Visible = true;
    }

我怎样才能实现 try/catch，以便如果其中一个失败......

        PrepElec1();
        MakeElec2();
        MakeElec3();
        MakeElec4();
        MakeElecMerged();

...我收到一个消息框，显示它在哪一步失败？

Answer 1

您可以让异常的堆栈跟踪为您完成工作。

private void ConvertFile()
{
    try
    {
        PrepElec1();
        MakeElec2();
        MakeElec3();
        MakeElec4();
        MakeElecMerged();
        SetDataSet.SetData(DtSet);
        btnConvert.Enabled = false;
        btnReport.Visible = true;
    }
    catch (Exception e)
    {
        var trace = e.StackTrace;

        // format trace however you like

        MessageBox.Show(this, trace, "Error");
    }
}