vb.net - dynamically addressing xml document fields -


i using visual basic application generate , manage data @ same time loaded webpage.

i have chosen through xml seemed path of least resistance.

this not standard xml file, pretty each element has unique name can referenced both vb app , webpage make sure data can correctly identified in both cases. due complexity of data need able reference fields dynamically

example

textbox controls each have unique names correspond xml element load data to

textbox name = xml.<root>.<name> textbox age = xml.<root>.<age> textbox height = xml.<root>.<height>

the idea update function same textboxes , identify xml element according name of control updated:

xml.<root>. & control.name = control.value

but i'm not quite able work out if similar possible.

you have use bindingsource bind data xml controls shown below.

look below code, comments explain content

input:

<root>     <name>kumar kumar</name>     <age>28</age>     <height>6</height>  </root>

code:

       'declare binding source         dim bs bindingsource = new bindingsource()          'decalre dataset read xml         dim ds dataset = new dataset()          'load dataset xml         ds.readxml("c:\\users\\xxxxx\\desktop\\test\\test.xml")          'bind dataset bindingsource has loaded xml         bs.datasource = ds         bs.datamember = ds.tables(0).tablename          'this important bind controls memebers of binding source         'the first parameter of add, "text" attribute of text block         'second parameter of add, binding source         'third parameter xml attribute bound         textboxname.databindings.add("text", bs, "name")         textboxage.databindings.add("text", bs, "age")         textboxheight.databindings.add("text", bs, "height")

Comments

Post a Comment

Popular posts from this blog

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

sql server - Why does Linq-to-SQL add unnecessary COUNT()? -

here tables: create table customer ( cid int primary key, name varchar(32) ) create table ord ( oid int primary key, cid int foreign key references customer, address varchar(20) ) here's linq-to-sql statement: var aaa = c in db.customer select new { c, o = c.ord.tolist() }; and here's inexplicable query generated linq-to-sql: select [t0].[cid] [cid], [t0].[name] [name], [t1].[oid] [oid], [t1].[cid] [cid2], [t1].[address] [address], (select count(*) [dbo].[ord] [t2] [t2].[cid] = [t0].[cid]) [value] [dbo].[customer] [t0] left outer join [dbo].[ord] [t1] on [t1].[cid] = [t0].[cid] order [t0].[cid], [t1].[oid] i want understand how rid of count(*) part. it's entirely uncalled for! linq needs count(*) in order determine number of entries returned o = c.ord.tolist() .
Read more