From 808f6d3f266583355ba75650b791b395c025fe97 Mon Sep 17 00:00:00 2001
From: aufe20202402 <aufe20202402@qq.com>
Date: Tue, 29 Nov 2022 16:57:52 +0800
Subject: [PATCH] Update delete.txt

---
 delete.txt | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/delete.txt b/delete.txt
index e69de29..1524c38 100644
--- a/delete.txt
+++ b/delete.txt
@@ -0,0 +1,34 @@
+//删除图书模块实现
+        private void delete_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                //用户点击需要删除的图书，点击删除，弹出是否确认删除的提示信息
+                string id = dataGridView1.SelectedRows[0].Cells[0].Value.ToString();
+                label2.Text = id + dataGridView1.SelectedRows[0].Cells[1].Value.ToString;
+
+                DialogResult dr = MessageBox.Show("确认删除吗？", "信息提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
+                if (dr == DialogResult.OK)
+                {
+                    string sql = $"delete from t_book where id='{id}'";
+                    Dao1 dao1 = new Dao1();
+                    if (dao1.Execute(sql) > 0)
+                    {
+                        MessageBox.Show("删除成功！");
+                        Table();
+                    }
+                    else
+                    {
+                        MessageBox.Show("删除失败！" + sql);
+
+                    }
+                    dao1.DaoClose();   
+                }
+            }
+            //若用户没有选择图书点击删除，则弹出提示信息：请先在表格中选中要删除的图书记录
+            catch
+            {
+                MessageBox.Show("请先在表格中选中要删除的图书记录", "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
+
+            }
+        }
\ No newline at end of file