excel - could not find installable isam [vb.net] -

-

i have following problem, using connection string:

"provider=microsoft.ace.oledb.12.0;data source=" + filename + ";extended properties=excel 12.0 xml;"

then, can execute open-task. nevertheless, if want use following connection string:

"provider=microsoft.ace.oledb.12.0;data source=" + filename + ";extended properties=excel 12.0 xml;hdr=no"

i mistake, saying me installable isam not found.

what wrong second connection string, need 1 because in worksheet no headers used.

thanks in advance

if want query excel you must have '$' sign after sheet name in order define sheet table. anyway code wrote purpose:

 try         dim myconnetion new oledbconnection         dim dataset system.data.dataset         dim mycommand system.data.oledb.oledbdataadapter         dim path string = fullpath          myconnetion = new system.data.oledb.oledbconnection("provider=microsoft.ace.oledb.12.0;data source=" + path + ";extended properties=excel 12.0;")         mycommand = new system.data.oledb.oledbdataadapter("select * " & "[" & sheetname & "$]")          dataset = new system.data.dataset         mycommand.fill(dataset)         dgv.datasource = dataset.tables(0)         myconnetion.close()       catch ex exception         msgbox(ex.message.tostring)     end try

Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile: ...
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo...
Read more