geotools导出shapefile出错: java.io.IOException: Current fid index is null, next must be called before write() 经过查找,发现出现该问题的原因是SQLServer数据库中有几个字符型字段的类型为NVARCAHR类型.NVARCHAR类型支持双字节,shapefile数据是用DBF文件来存储.字符类型text只支持单字节数据.因此,如果字段QI_YUAN在SQLServer定义成NVARCHAR(6
Sub ExportCustom() ' ' ExportCustom 宏 ' 导出自定义属性到custom.txt ' Dim lFileNumber As Long Dim sFilePath As String Dim current As Object Set current = ActiveDocument sFilePath = current.Path + "\Custom.txt" lFileNumber = FreeFile() Open sFilePath For
问: I'm trying to make a custom authorization attribute in ASP.NET Core. In previous versions it was possible to override bool AuthorizeCore(HttpContextBase httpContext). But this no longer exists in AuthorizeAttribute. What is the current approach to
简单的导出到Excel中: 代码如下: using System; using System.Collections.Generic; using System.Data; using System.Linq; using System.Text; using System.Web; namespace Space { /// <summary> /// 标题:将 DataSet, DataTable 导出到 Excel /// 描述:对之前做的导出 Excel 做调整以支持对 DataSet