应用错误收集

问题可能在于您如何将数据从app.config解析为标签。我猜你正在使用ConfigurationManager，所以你所要做的就是再次阅读，就像你第一次那样。

您可以将参数传递给子表单吗？如果是，请将代理人/* ezxml.h * * Copyright 2004-2006 Aaron Voisine <aaron@voisine.org> * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef _EZXML_H #define _EZXML_H #include <stdlib.h> #include <stdio.h> #include <stdarg.h> #include <fcntl.h> #ifdef __cplusplus extern "C" { #endif #define EZXML_BUFSIZE 1024 // size of internal memory buffers #define EZXML_NAMEM 0x80 // name is malloced #define EZXML_TXTM 0x40 // txt is malloced #define EZXML_DUP 0x20 // attribute name and value are strduped typedef struct ezxml *ezxml_t; struct ezxml { char *name; // tag name char **attr; // tag attributes { name, value, name, value, ... NULL } char *txt; // tag character content, empty string if none size_t off; // tag offset from start of parent tag character content ezxml_t next; // next tag with same name in this section at this depth ezxml_t sibling; // next tag with different name in same section and depth ezxml_t ordered; // next tag, same section and depth, in original order ezxml_t child; // head of sub tag list, NULL if none ezxml_t parent; // parent tag, NULL if current tag is root tag short flags; // additional information }; // Given a string of xml data and its length, parses it and creates an ezxml // structure. For efficiency, modifies the data by adding null terminators // and decoding ampersand sequences. If you don't want this, copy the data and // pass in the copy. Returns NULL on failure. ezxml_t ezxml_parse_str(char *s, size_t len); // A wrapper for ezxml_parse_str() that accepts a file descriptor. First // attempts to mem map the file. Failing that, reads the file into memory. // Returns NULL on failure. ezxml_t ezxml_parse_fd(int fd); // a wrapper for ezxml_parse_fd() that accepts a file name ezxml_t ezxml_parse_file(const char *file); // Wrapper for ezxml_parse_str() that accepts a file stream. Reads the entire // stream into memory and then parses it. For xml files, use ezxml_parse_file() // or ezxml_parse_fd() ezxml_t ezxml_parse_fp(FILE *fp); // returns the first child tag (one level deeper) with the given name or NULL // if not found ezxml_t ezxml_child(ezxml_t xml, const char *name); // returns the next tag of the same name in the same section and depth or NULL // if not found #define ezxml_next(xml) ((xml) ? xml->next : NULL) // Returns the Nth tag with the same name in the same section at the same depth // or NULL if not found. An index of 0 returns the tag given. ezxml_t ezxml_idx(ezxml_t xml, int idx); // returns the name of the given tag #define ezxml_name(xml) ((xml) ? xml->name : NULL) // returns the given tag's character content or empty string if none #define ezxml_txt(xml) ((xml) ? xml->txt : "") // returns the value of the requested tag attribute, or NULL if not found const char *ezxml_attr(ezxml_t xml, const char *attr); // Traverses the ezxml sturcture to retrieve a specific subtag. Takes a // variable length list of tag names and indexes. The argument list must be // terminated by either an index of -1 or an empty string tag name. Example: // title = ezxml_get(library, "shelf", 0, "book", 2, "title", -1); // This retrieves the title of the 3rd book on the 1st shelf of library. // Returns NULL if not found. ezxml_t ezxml_get(ezxml_t xml, ...); // Converts an ezxml structure back to xml. Returns a string of xml data that // must be freed. char *ezxml_toxml(ezxml_t xml); // returns a NULL terminated array of processing instructions for the given // target const char **ezxml_pi(ezxml_t xml, const char *target); // frees the memory allocated for an ezxml structure void ezxml_free(ezxml_t xml); // returns parser error message or empty string if none const char *ezxml_error(ezxml_t xml); // returns a new empty ezxml structure with the given root tag name ezxml_t ezxml_new(const char *name); // wrapper for ezxml_new() that strdup()s name #define ezxml_new_d(name) ezxml_set_flag(ezxml_new(strdup(name)), EZXML_NAMEM) // Adds a child tag. off is the offset of the child tag relative to the start // of the parent tag's character content. Returns the child tag. ezxml_t ezxml_add_child(ezxml_t xml, const char *name, size_t off); // wrapper for ezxml_add_child() that strdup()s name #define ezxml_add_child_d(xml, name, off) \ ezxml_set_flag(ezxml_add_child(xml, strdup(name), off), EZXML_NAMEM) // sets the character content for the given tag and returns the tag ezxml_t ezxml_set_txt(ezxml_t xml, const char *txt); // wrapper for ezxml_set_txt() that strdup()s txt #define ezxml_set_txt_d(xml, txt) \ ezxml_set_flag(ezxml_set_txt(xml, strdup(txt)), EZXML_TXTM) // Sets the given tag attribute or adds a new attribute if not found. A value // of NULL will remove the specified attribute. Returns the tag given. ezxml_t ezxml_set_attr(ezxml_t xml, const char *name, const char *value); // Wrapper for ezxml_set_attr() that strdup()s name/value. Value cannot be NULL #define ezxml_set_attr_d(xml, name, value) \ ezxml_set_attr(ezxml_set_flag(xml, EZXML_DUP), strdup(name), strdup(value)) // sets a flag for the given tag and returns the tag ezxml_t ezxml_set_flag(ezxml_t xml, short flag); // removes a tag along with its subtags without freeing its memory ezxml_t ezxml_cut(ezxml_t xml); // inserts an existing tag into an ezxml structure ezxml_t ezxml_insert(ezxml_t xml, ezxml_t dest, size_t off); // Moves an existing tag to become a subtag of dest at the given offset from // the start of dest's character content. Returns the moved tag. #define ezxml_move(xml, dest, off) ezxml_insert(ezxml_cut(xml), dest, off) // removes a tag along with all its subtags #define ezxml_remove(xml) ezxml_free(ezxml_cut(xml)) #ifdef __cplusplus } #endif #endif // _EZXML_H传给您的孩子。当它保存时，调用该函数并在您的父实现它来更新您的变量。

然后您甚至可以发送新值，这样您就不需要再查看它们了。

在表单上刷新配置

2 个答案: