c# - Using 'SUBSTRING(expression, startIndex, length)' with BindingSource on DataColumn -


i trying filter numeric string matching start of source string , length of search string.

all filtered columns strings. words, there 1 column has values 001302:alt#. underlying data source sucks, cannot change structure. numbers grouped based on left-hand values (i.e. 050110 , 050534 both related client(05), 052123 related client(05) invoices(2)). users want able search data in datagridview , filter column group (i.e. enter 05 , see starts 05, or 052 , see 052000-052999)

i generating filter string , setting filter property on bindingsource using dataset datasource , table datamember. rest of filtering works, problem having numeric filter. when set bindingsource.filter property, throws argumentoutofrange exception.

an unhandled exception of type 'system.argumentoutofrangeexception' occurred in system.data.dll additional information: substring() argument out of range.

i thought might firing against empty row, or 1 had few digits, firing 1 character. therefore, length argument should valid, still throwing exception. 

bool firstcolumn = true; foreach (datacolumn column in filteredcolumns.keys) {     if (filteredcolumns[column])     {         if (!firstcolumn) fieldfilter.append(") or ("); else firstcolumn = false;          int numericfilter;         if (int.tryparse(filterword, out numericfilter))         {             fieldfilter.append(string.format("substring({0}, 0, {2}) = {1}", column.columnname, filterword, filterword.length));         }         else             {             fieldfilter.append(string.format("{0} '%{1}%'", column.columnname, filterword));             }     } }

i sure missing stupid. thank in advance pointing out error(s)!

never mind. making assumption datacolumn expression substring behaved same string.substring. substring expression 1 based index, whereas string.substring method starts it's index @ 0. should have checked first, instead tried running brick wall hours...

thanks anyways guys!


Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

javascript - jQuery show full size image on click -

pretty self explanatory not workking . i want display full image when user click on image... yes know there tons of plugins but i want keep simple. any idea ? css : .full { display: none; width: 500px; height: 500px; margin-left: 100px; margin-top: -300px; position: fixed; background-color: #f00; z-index: 6; } .thumbnail { width: 50px; height: 50px; } html: <img class="thumbnail" src="http://4.bp.blogspot.com/-uhbdp2esxng/txneptvi92i/aaaaaaaaaky/upfqis7zto0/s1600/rihanna-wallpaper.jpg"> jquery: $(document).ready(function() { $('.thumbnail').on('click', function() { var img = $('<img />',{src:this.src,'class':'full'}); $('.full').html(img).show(); console.log('done!'); }); }); try looking how jquery works. $(document).ready(function() { $('.thumbnail').on('click', function(...
Read more