my VB.net application uploads local files to server. Every second my application need to detect whether my application still connected to that server or lost connection, how i can detect the connection lost or still connected ? using shell or ping ? how to use it ?
Regards, Chee ken
Thank you for your help , wish you all the best !
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is time consuming if i code the function out, so i hope anybody can share the coding for me or teach me anything and other programmer also can learn too. i think this is why code project here right ? Any people can share their knowledge with other people. if you dun want share or you dun know how to answer it, please dun reply ,thank you. -- modified at 3:07 Wednesday 10th October, 2007
Regards, Chee ken
my project require to convert the money from 123 to word, for example, 1000.10 --> one thousand and ten cent 200.00 --> two hundred. does visual studio have function to convert it ?
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i have a textbox for user key in the value, but i need to convert the data into two decimal place, for example, user input: 123 then i will put this input to a function to convert it into 123.00 user input: 123.456 then i will put this input to a function to convert it into 123.45 how i code this function ?
Regards, Chee ken
i using datagridview to display data. i just have 2 column of record to display it. After i binidng the data inti datagridview,what i can see is the datagridview consist 2 column and remaining is the background of the datagridview.So, how can i do to add another blank column to fill the remaining space inside the datagridview? so the datagridview have 3 column and total width of the 3 column is equal to the width of the datagridview ?
Regards, Chee ken
i have a datagridview and two table of record, one is parent and another is child table. so, how can i binding the record to the datagrid so the data can nested?
Regards, Chee ken
i have one excel need to upload to mySQL thru asp.net web application. How to import excel file to mySQL ? or how to import excel to datatable or xml? because alternatively i have code to convert xml to mysql. Thanks.
Regards, Chee ken
Thanks for you all help!;)
Regards, Chee ken
If Not cbYear.SelectedValue.Equals(Now.Year.ToString) Then ' Examine every control. For Each ctl As Control In Me.Controls If TypeOf ctl Is TextBox Then ctl.Enabled = False On Error GoTo 0 End If Next ctl Else For Each ctl As Control In Me.Controls If TypeOf ctl Is TextBox Then ctl.Enabled = True On Error GoTo 0 End If Next ctl End If cbYear is a combobox, why this code cannot work ? If i comment " If TypeOf ctl Is TextBox Then" then all control will disable. thanks
Regards, Chee ken
i have a window form consists around 30 textbox and label, so i don't want disable all by write code one by one , all any idea ? for example , using a for loop to detect all label and textbox and disable it?
Regards, Chee ken
how to check the FTP url is exist or not ? let said i have ftp://ftp.host.com/folder1/ how i check this FTP Exist or not ? thanks.
Regards, Chee ken
My window application calling a web service to process data. so, if i process little data only, it run perfectly, but if i run around more data, it pop up a message : The operation is timed out", how i solve this problem ? any coding can make solve this problem?
Regards, Chee ken
Cross-thread operation not valid: Control 'Button1' accessed from a thread other than the thread it was created on. Why have this error point to "Button1.Visible = False" this line ? Regards, Chee ken
I need the button disappear after 5 second the window form is load, how i do this ? Chee ken
i have a XML file and need to update its data into MYSQL database. I using vb.net. How to i need to write it ?
Best regards, Chee ken
i have 4 radio button, for example, radiobutton 1 is A1 radiobutton 2 is A2 radiobutton 3 is B1 radiobutton 4 is B2 While i run the application, by default, it only allow me to checked either one of four radiobutton. i want my application group it into two group, A1 and A2 in one group and B1 and B2 in another group. So, while i Click A1, A2 will be unchecked and while i click A2, A1 will be unchecked as well, and B1 and B2 is remain the same. So , this criteria also same as B1 and B2, while i click either B1 and B2, it is no effect A1 and A2, how to gorup it ar? without put it into group box, anybody can help me ?
Best regards, Chee ken
I have a datagridview to show data. My datagridview is using datasource to binding data. Now my question is , How can i add a new column as checkbox in front of each row? ( means if i have 3 row of record, each row will have one check box ) and store a value to it ? and how i check this checkbox is checked or unchecked ? thanks.
Best regards, Chee ken
Thanks for reply. i put a breakpoint on that code line, then the watch window return value "Nothing" for comlevelID, and i press F10,while it jump to next code line, the watch window show that the comlevelID is "{System.Data.DataRowView}". Is it cannot get the selectedvalue?
Best regards, Chee ken
"cbComLevel" is a combo box(dropdown list) and "ComLevelDetail" is a datatable contains data from database. i using this method to bind data to combo box. '--------------------------- With cbComLevel .DataSource = ComLevelDetail .DisplayMember = "ComLevel" .ValueMember = "ID" End With Dim ComLevelID As Integer = CInt(cbComLevel.SelectedValue.ToString) label1.text = ComLevelID '--------------------------- so this code work fine while i compile the application. but while i add new code below in order to get the selected value from this combo box while the combo box selected index changed: '--------------------------- Private Sub cbComLevel_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cbComLevel.SelectedIndexChanged Dim ComLevelID As Integer = CInt(cbComLevel.SelectedValue.ToString) label1.text = ComLevelID End Sub '--------------------------- the error message come out : Conversion from string "System.Data.DataRowView" to type 'Integer' is not valid. I still no idea how to solve it, Who know what happen?
Best regards, Chee ken