1、数据库开发工具：增加对已存在表支持，方便相应导出操作

.gitignore

@@ -17,3 +17,4 @@ bin
 /.vs/Ftt_Common
 .vs
 /AppHome/save
+/AppHome/temp

AppHome/config/help.txt

@@ -3,5 +3,8 @@
 2、操作说明：支持右键増行/删行，以及按键Insert与Delete
 3、导出文件：以表名命名，即每表导出一个相应类型文件。默认导出路径为temp，可自定义。
 4、暂存与恢复：暂存时，每表每天只暂存一个文件。暂存路径根目录save文件夹。
-5、数据库设置：快速设置数据库链接并记录历史设置。程序启动时读取配置文件的默认数据库链接
-6、日志功能：暂不开发
+5、数据库设置：快速设置数据库链接并记录历史设置。程序启动时读取配置文件的默认数据库链接。
+6、加载表信息：表创建后，可以输入表名，通过该按钮加载相应信息。使用该功能时，有几点需要注意：
+	a.加载信息后，通过导出SQL按钮，会更新数据库的描述信息，除描述信息之外的任何修改不会更新到数据库。
+	b.由于类型是下拉选择框，对于非本工具创建的表，存在类型风险，即无法找到匹配的下拉项。
+

AppHome/config/links.xml

@@ -12,4 +12,10 @@
     <UserId>sa</UserId>
     <Pwd>sa</Pwd>
   </links>
+  <links>
+    <Link>.</Link>
+    <DbName>Temp</DbName>
+    <UserId>sa</UserId>
+    <Pwd>sa</Pwd>
+  </links>
 </DocumentElement>
\ No newline at end of file

Tools/Properties/Resources.Designer.cs

@@ -110,6 +110,16 @@ namespace Tools.Properties {
             }
         }
         
+        /// <summary>
+        ///   查找 System.Drawing.Bitmap 类型的本地化资源。
+        /// </summary>
+        internal static System.Drawing.Bitmap 加载 {
+            get {
+                object obj = ResourceManager.GetObject("加载", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
         /// <summary>
         ///   查找 System.Drawing.Bitmap 类型的本地化资源。
         /// </summary>

Tools/Properties/Resources.resx

@@ -133,6 +133,9 @@
   <data name="分析" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\分析.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="加载" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\加载.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
   <data name="实体类" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\实体类.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>

Tools/Tools.csproj

@@ -198,5 +198,8 @@
   <ItemGroup>
     <None Include="Resources\分析.png" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Resources\加载.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file

Tools/UI/wDBTools.cs

@@ -123,18 +123,9 @@ namespace Tools.UI
                     { "IsAutoIncrement", typeof(bool) },
                     { "DefaultValue", typeof(string) },
                 },
-                //Rows = {
-                //    { "ID", "主键", "VARCHAR(50)", DBNull.Value, DBNull.Value, DBNull.Value, "" },
-                //},
             });
             //设置主键
             this._ds.Tables[infoTable].PrimaryKey = new DataColumn[] { this._ds.Tables[infoTable].Columns[0] };
-            //生成数据结构配置文件
-            //var cfg = $@"{Utils.ConfigPath}\data_struct_cfg.xml";
-            //if (!File.Exists(cfg))
-            //{
-            //    this._ds.WriteXml(cfg, XmlWriteMode.WriteSchema);
-            //}
 
             #endregion
         }
@@ -159,6 +150,7 @@ namespace Tools.UI
             this.tsmiExportSql.Click += TsmiExportSql_Click;
             this.tsmiExportExcel.Click += TsmiExportExcel_Click;
             this.tsmiExportWord.Click += TsmiExportWord_Click;
+            this.tsbLoadTable.Click += TsbLoadTable_Click;
             this.tsbTempSave.Click += TsbTempSave_Click;
             this.tsbResume.Click += TsbResume_Click;
             this.tsbDbLink.Click += TsbDbLink_Click;
@@ -168,6 +160,7 @@ namespace Tools.UI
             this.tsmiDelRow.Click += TsmiDelRow_Click;
             
         }
+
         private void BindBaseInfo()
         {
             this.tbTableName.DataBindings.Clear();
@@ -289,6 +282,22 @@ namespace Tools.UI
             new NPOIWordHelper().Export(this.TableName, this.TableDescription, this._ds.Tables[infoTable], $@"{this.GetExportPath()}\{this.TableName}.docx");
         }
 
+        private void TsbLoadTable_Click(object sender, EventArgs e)
+        {
+            if (this.TableName.Equals(""))
+            {
+                Utils.Tip("请输入表名！");
+                return;
+            }
+            if (!this.IsExistTable(this.TableName))
+            {
+                Utils.Tip("该表尚未创建！");
+                return;
+            }
+            //初始化表列信息
+            this.InitTableColumnInfo(this.TableName);
+        }
+
         private void TsbTempSave_Click(object sender, EventArgs e)
         {
             if (!this.CheckDetail())
@@ -332,7 +341,7 @@ namespace Tools.UI
             {
                 using (var sr = new StreamReader(helpFileName))
                 {
-                    Utils.Tip(sr.ReadToEnd(), 450, 300);
+                    Utils.Tip(sr.ReadToEnd(), 700, 300);
                 }
             }
             
@@ -363,12 +372,13 @@ namespace Tools.UI
         /// <returns></returns>
         private bool CheckDetail()
         {
-            //检查基本信息
+            //检查表名
             if (this.TableName.Equals(""))
             {
                 Utils.Tip("请输入表名！");
                 return false;
             }
+            //检查表描述
             if (this.TableDescription.Equals(""))
             {
                 Utils.Tip("请输入表的描述信息！");
@@ -473,12 +483,82 @@ namespace Tools.UI
                 Directory.CreateDirectory(path);
             }
         }
+        /// <summary>
+        /// 是否存在表
+        /// </summary>
+        /// <param name="tableName"></param>
+        /// <returns></returns>
+        private bool IsExistTable(string tableName)
+        {
+            return this._db.IsExist(this._link, $"SELECT COUNT(*) FROM sys.tables WHERE [name] = '{tableName}'");
+        }
+        /// <summary>
+        /// 初始化表列信息(针对已存在的表)
+        /// </summary>
+        /// <param name="tableName"></param>
+        private void InitTableColumnInfo(string tableName)
+        {
+            //清空当前表格
+            this._ds.Tables[infoTable].Rows.Clear();
 
+            var sqlist = new List<TQuery> { 
+                //取表结构
+                new TQuery(tableName, $"SELECT TOP 0 * FROM {tableName}"),
+                //取表描述
+                new TQuery("TableDescInfo", $@"
+                    SELECT 
+	                    TableName=a.name, 
+	                    TableDescription=b.value 
+                    FROM sysobjects a
+                    LEFT JOIN sys.extended_properties b ON a.id = b.major_id AND b.minor_id = 0
+                    WHERE a.name = '{tableName}'"),
+                //取列描述、非空、默认值
+                new TQuery("ColumnDescInfo", $@"
+                    SELECT
+                        FieldName = CONVERT(VARCHAR(100), a.name),
+                        [Description] = CONVERT(VARCHAR (50), isnull(d.[value],'')),
+	                    IsNotNull = CASE WHEN a.isnullable=1 THEN 0 ELSE 1 END,
+	                    DefaultValue = REPLACE(REPLACE(c.text, '(', ''), ')', ''),
+	                    ColumnType = CASE WHEN CHARINDEX('varchar',e.name,0) > 0 THEN e.name+'('+CAST(a.length AS VARCHAR(50)) +')' ELSE e.name END 
+                    FROM dbo.syscolumns a
+                    INNER JOIN dbo.sysobjects b ON b.id = a.id AND b.xtype = 'U' AND b.name <> 'dtproperties'
+                    LEFT JOIN sys.syscomments c ON c.id = a.cdefault
+                    LEFT JOIN sys.extended_properties d ON d.major_id = b.id AND d.minor_id = a.colid
+                    LEFT JOIN dbo.systypes e ON e.xusertype = a.xusertype 
+                    WHERE b.name = '{tableName}'"),
+            };
 
+            try
+            {
+                var ds = this._db.GetData(this._link, sqlist, true);
+                //先添加表描述
+                this.tbTableDescription.Text = ds.Tables["TableDescInfo"].DefaultView[0]["TableDescription"].ToString();
+                //初始化列信息
+                foreach (DataColumn dc in ds.Tables[tableName].Columns)
+                {
+                    var drNew = this._ds.Tables[infoTable].NewRow();
+                    var rows = ds.Tables["ColumnDescInfo"].Select($"FieldName='{dc.ColumnName}'");
+                    drNew["FieldName"] = dc.ColumnName;
+                    drNew["Description"] = rows[0]["Description"];
+                    drNew["ColumnType"] = rows[0]["ColumnType"].ToString().ToUpper();
+                    drNew["IsNotNull"] = rows[0]["IsNotNull"];
+                    drNew["IsPrimaryKey"] = ds.Tables[tableName].PrimaryKey.Contains(dc);
+                    drNew["IsAutoIncrement"] = dc.AutoIncrement;
+                    drNew["DefaultValue"] = rows[0]["DefaultValue"];
+                    drNew.EndEdit();
+                    this._ds.Tables[infoTable].Rows.Add(drNew);
+                }
+            }
+            catch (Exception ex)
+            {
+                Utils.Tip("初始化列信息出错！\r\n" + ex.Message);
+            }
+
+        }
 
         #region 待开发：查询指定表的列与描述信息
 
-        private void SearchColumn(string tableName)
+    private void SearchColumn(string tableName)
         {
 
             string sql = $@"