C# winform应用

需求：导入Excel文件时需要执行其他操作，实现如果取消导入就不执行其他操作

C#代码实现

private bool DLimport0(string tablename, string datebasename, string buttonname){string xxx = "";string Tag = "";string connString = "server=192.168.1.110;uid=sa;pwd=xyz@0123456...;database=" + datebasename;System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();fd.Multiselect = true;if (fd.ShowDialog() == DialogResult.OK){foreach (string file in fd.FileNames){xxx += file + "\n";}DialogResult dr = MessageBox.Show("是否将以下文件导入到【" + buttonname + "】\n" + xxx, "导入文件确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);if (dr == DialogResult.OK){//label1.Visible = true;richTextBox1.Text = null;richTextBox2.Text = null;DL(connString, tablename);foreach (string file in fd.FileNames){richTextBox2.AppendText(DateTime.Now.ToString("HH:mm:ss  ") + System.IO.Path.GetFileName(file) + "数据读取中...\n");Tag = TransferData(file, tablename, connString);richTextBox2.AppendText("--------------------\n");richTextBox1.ScrollToCaret();richTextBox2.ScrollToCaret();}if (Tag == "TAG") { MessageBox.Show("导入完成!"); }else MessageBox.Show("导入失败！");return true; // 返回true表示文件导入成功}}return false; // 返回false表示用户取消了文件选择}private bool NODLimport0(string tablename, string datebasename, string buttonname){bool fileImported = false; // 声明一个用于判断文件是否导入成功的变量string xxx = "";string Tag = "";string connString = "server=192.168.1.110;uid=sa;pwd=xyz@0123456...;database=" + datebasename;System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();fd.Multiselect = true;DialogResult fdResult = fd.ShowDialog();if (fdResult == DialogResult.OK){foreach (string file in fd.FileNames){xxx += file + "\n";}DialogResult dr = MessageBox.Show("是否将以下文件导入到【" + buttonname + "】\n" + xxx, "导入文件确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);if (dr == DialogResult.OK){richTextBox1.Text = null;richTextBox2.Text = null;foreach (string file in fd.FileNames){richTextBox2.AppendText(DateTime.Now.ToString("HH:mm:ss  ") + System.IO.Path.GetFileName(file) + "数据读取中...\n");Tag = TransferData(file, tablename, connString);richTextBox2.AppendText("--------------------\n");richTextBox1.ScrollToCaret();richTextBox2.ScrollToCaret();}if (Tag == "TAG"){MessageBox.Show("导入完成!");fileImported = true; // 设置文件导入成功的标志变量为true}else{MessageBox.Show("导入失败！");fileImported = false; // 设置文件导入成功的标志变量为false}}}return fileImported; // 返回文件导入成功的标志变量}public void noQuery(string sql){//server=127.0.0.1;string connString = "server=192.168.1.110;uid=sa;pwd=xyz@0123456...;database=RB";SqlConnection conn = new SqlConnection(connString);SqlCommand cmd = new SqlCommand(sql, conn);cmd.CommandTimeout = 1000;conn.Open();cmd.ExecuteNonQuery();conn.Close();}//测试按钮清空数据 DLimport0 NODLimport0private void button60_Click(object sender, EventArgs e){DLimport0("cs", "RB", "派发清空导入" + button60.Text);//NODLimport0("cs", "RB", "派发增量导入" + button60.Text);/*if (NODLimport0("cs", "RB", "派发增量导入" + button60.Text)){noQuery("update cs set 未完成大类='其他' WHERE 未完成大类 LIKE '%其他原因%'");noQuery("update cs set 定单状态='缓装' WHERE 定单状态 LIKE '%已缓装%'");noQuery("update cs set 定单状态='待装' WHERE 定单状态 LIKE '%已待装%'");}*/}