代码语言:txt 复制 var sql = "UPDATE TableName SET Column1 = @param1, Column2 = @param2 WHERE Column3 = @param3"; var affectedRows = connection.Execute(sql, parameters); 这样,Dapper就会将参数对象中的值替换占位符,并执行相应的数据库操作。 使用Dapper提供多个参数的优势在于简化了参数传递的过程...
{varresult = conn.Query<VestingEntityExtend>(querySql,new{ companyId, employeeId, grantIds =grantIds }).ToList();returnresult; } }//////插入批量实体//////待插入集合///<returns>返回影响行数</returns>publicintInsertDocumentSignatureFieldValueTable(List<DocumentSigningParameterModel>documentSignin...
}//////插入批量实体//////待插入集合///<returns>返回影响行数</returns>publicintInsertDocumentSignatureFieldValueTable(List<DocumentSigningParameterModel>documentSigningParameterModels) {conststringinsertSql =@"INSERT INTO [dbo].[DocumentSigningParameter] ( [DocumentSigningID], [ParameterName], [Parame...
public override void SetValue(IDbDataParameter parameter, Point value) { parameter.Value = $"({value.X},{value.Y})"; parameter.DbType = DbType.String; } public override Point Parse(object value) { if (value is string strValue) { var parts = strValue.Trim('(', ')').Split(',');...
parameter.Add("@Email", con.Email); 第三步:用db.Execute()调用存储过程 db.Execute("SaveContact",parameter,commandType:CommandType.StoredProcedure); //To get newly created ID back con.Id = parameter.Get("@Id"); 这些是使用c#动态对象操作数据库的方法。
conn.Query<T>(sql).ToList(); 添加DMTinyIntTypeHandler internalclassDMTinyIntTypeHandler:SqlMapper.ITypeHandler { publicvoidSetValue(IDbDataParameter parameter, object value){ parameter.Value = value; } public objectParse(Type destinationType, object value){if(value == DBNull.Value || value == ...
Batch insert/update calls with a list parameter into a single operation/request to database in DapperAsk Question Asked 6 years, 3 months ago Modified 6 years, 3 months ago Viewed 989 times 0 Based off this code on Dapper's github page, I created a bulk insert state...
} public void AddParameter(string name, object value) { _parameters.Add(name, value); } } 其中: 1. _wheres: 对应于SQL的 where 子语句。 2. _parameters: 对应于 where 子语句用到的实际参数。 3. _fromSql: 如果省略此属性,则从模型类名推导出需要操作的数据库表名,对于需要进行表关联的复杂查...
string sqlQuery = "SELECT SellingPrice, MarkupPercent, MarkupAmount FROM ProfitMargins WHERE QuoteId in @QuoteId"; var profitMargin = await ctx.Database.SqlQuery<dynamic>(sqlQuery, new { QuoteId = new[] { 1, 2, 3, 4, 5 } } //String.Join(", ", QuoteIds.ToA...
5 IEnumerable<T> GetBySql(string sql, Dictionary<string, object> parameter, CommandType commandType); 6 IEnumerable<T> GetByPaging(string sql, Dictionary<string, object> parameters, CommandType commandType); 7 8 void Add(T entity); 9 void Delete(T entity); ...