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i have a windows application which needs to close or shut down if a key value is incoorect i have a class file with below code and this classs file is called inthe windows form While dr.Read If Not mkey = dr("kcode").ToString Then MsgBox("Invalid key"...

i have a stored procedure to make a column encrypted using symmetric key & certificate in SQL i have encrypted data in sql table i need to compare / check this data value in windows forms with the user input & accordingly execute further. how do i compare the encrypted data value with...

Dim nic As Net.NetworkInformation.NetworkInterface Dim keyadd As String For Each nic In Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces keyadd = nic.GetPhysicalAddress.ToString If keyadd = "" Then...

thanks its solved

class file Public Class mkey Public Sub getkey() Try MsgBox("hello") Catch ex As Exception End Try End Sub referencing the method in windows forms Imports myproject1.mkey in form load Dim mk As mkey = Nothing...

if i add the reference of class file to the windows form page i and execute the form page i get Object variable or With block variable not set. error

i have created a windows application & it uses Microsoft reporting services. i am using vs2008 for the development i need to deploy the application at clinets system whts the best & safe method can we create any security check / licesence so that the application cant not be executed in other...

thanls a lot. yes u r right as i need to knw a lot and indepthh abt containers any link u culd provide me whih will give a detailed info abt dictionary , containers & how it can be used whts the difference in Dim values As New List(Of Dictionary(Of String, String)) Dim dictionary As...

Dim dictionary As New Dictionary(Of String, String) While m_readersc.Read If Not m_readersc("cname") = "" Then 'MsgBox(m_readersc("cid").ToString) dictionary.Add(m_readersc("cid").ToString, m_readersc("cname").ToString) End If End While

the abovr errr was due to a blank field. now i get thee belowerror Value of type 'String' cannot be converted to 'System.Collections.Generic.Dictionary(Of String, String)'. For Each value As Dictionary(Of String, String) In dictionary Dim id As String = value("cid")...

thanks tried using Dim dictionary As New Dictionary(Of String, String) Dim m_readersc As SqlDataReader = cmdsc1.ExecuteReader() While m_readersc.Read If Not m_readersc("cname") = "" Then dictionary.Add(m_readersc("cid"), m_readersc("cname"))...

While m_reader.Read If Not m_reader("cname") = "" Then arryname.Add(m_reader("cname")) arrymail.Add(m_reader("mail")) End If End While For Each item As String In arryname Next i hve the above code in which i am adding the fields 2...

thats what i had done but after doing it i was getting double columnname currently wht i have fr binding the grid is in form load i hve sqlstr=" select p.id , p.pname ,0 as QTY, p.RATE, AMOUNT, p.dtfrm as From_DT,p.dtto as To_DT from PRDT left join M_customer C On C.Cid = t.cust_id left...

i am really sorry but even on repeatedly reading post 7 i am nt able to make out the difference the cell / column property can be assigned at design or runtime if assigned at design time i already wrote that i get double columns if assigned at runtime before binding to the grid i get index...

if i set at run time i get error index out of range grid_trans.Columns(1).DefaultCellStyle.Format = DateFormat.ShortDate

as per u r suggestion i set the column data at design time and binded at run time as DataGridView1.DataSource = ds1.Tables("trans") but issue is i get double columns ie first foure coulmns i get which i binded at design time but without data & next four columns frm the query but with data

ya i had tried setting the cell format my grid column 5 & 6 hve the date but i hve not binded the grid thr' properties i hve binded it thr' code i have sql select * from table & binded the grid so how do i set the column format at runtime?

i copied the error msg which i get when i try 2 enter date in the grid cell i need to add date in dd/mm/yyyy format in the grid cell

--------------------------- DataGridView Default Error Dialog --------------------------- The following exception occurred in the DataGridView: System.FormatException: String was not recognized as a valid DateTime. ---> System.FormatException: String was not recognized as a valid DateTime...