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Use connection to connect to database. Create datagrid, dataset and dataadapter.
Fill your dataset using dataadapter and assing dataset to your datagrid.
NOTE: dg is the datagrid on your page. You can AutoGenerateColumns(True or False).
If you do just bind dataset to datagrid and that's it. If you want to play around you will have to built custom columns for your datagrid.
'Open connection<br />
con.Open()<br />
<br />
Dim strSQL As String = "SELECT * FROM Tabl1"<br />
<br />
'Create command and assign timeout value<br />
Dim cmdSelect As New System.Data.SqlClient.SqlCommand(strSQL, con)<br />
<br />
'Create data set<br />
Dim ds As New DataSet<br />
<br />
'Created adapter and fill dataset<br />
Dim da As New System.Data.SqlClient.SqlDataAdapter(cmdSelect)<br />
da.Fill(ds, "ANYTABLENAME")<br />
<br />
'Verify if data exists<br />
If ds.Tables(0).Rows.Count > 0 Then<br />
'Create dataview and assign sort by field and direction<br />
Dim dv As DataView = ds.Tables("ANYTABLENAME").DefaultView<br />
dg.DataSource = dv<br />
<br />
'Bind data to datagrid<br />
dg.DataBind()<br />
End If<br />
<br />
'Close connection<br />
con.Close()
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thx alot but I'm having the error that con has not been initialized.
BiG RaLpH
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Dim sConn As String
sConn = ConfigurationSettings.AppSettings("SQLConString")
Dim con As New System.Data.SqlClient.SqlConnection(sConn)
Dim selectCMD As SqlCommand = New SqlCommand("SELECT * FROM Customers", con)
selectCMD.CommandTimeout = 30
Dim custDA As SqlDataAdapter = New SqlDataAdapter
custDA.SelectCommand = selectCMD
con.Open()
Dim custDT As DataTable = New DataTable
custDA.Fill(custDT, "Customers")
con.Close()
Now u have customers table in custDT ..
Regards,
Ramesh.
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thx alot but I'm having the error that con has not been initialized.
BiG RaLpH
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are you running on a sql Server?
If so shouldn't you do any authentication? User Id=;Password=;
check out the connection string in web.config
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No I don't have any ID or Password this is y I'm amazed.
is there anything else that might go wrong that may coz this error.
BiG RaLpH
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how r u connecting to sqlserver?
windows authentication....
just paste the connection string and ur code..
i will let u know any prob's in that..
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the connection string is:
<add name="NameofConnection" connectionString="Data Source=W2K3SERVER;Initial Catalog=DATABASE;Integrated Security=True" providerName="System.Data.SqlClient"/>
My code is the code u gave me:
Dim sConn As String
sConn = System.Configuration.ConfigurationManager.AppSettings("NameofConnection")
Dim con As New System.Data.SqlClient.SqlConnection
con.ConnectionString = sConn
Dim selectCMD As SqlCommand = New SqlCommand("SELECT * FROM Table$", con)
selectCMD.CommandTimeout = 30
Dim custDA As SqlDataAdapter = New SqlDataAdapter
custDA.SelectCommand = selectCMD
con.Open()
Dim custDT As DataTable = New DataTable
custDA.Fill(custDT)
con.Close()
the .fill doesn't take the 2 parameters I'm using asp.net 2.0 (maybe there is a difference)
BiG RaLpH
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Hi.
I have a web page, which collects information about project (name, project date create, description, project date due, etc). One of the things I need to collect is the "project assigned to" information. For this purpose I need to build a table or any other structure that can support the following:
1. the table should have 5 rows as default
2. the table should have ability to add/remove rows if needed
3. the table will consist of 2 cell.
a. Role - dynamic drop-down (data will be populated from db)
b. Name - text field
4. adding/removing rows should not affect data entered in other fields. Basically if I filled all 5 rows and want to add sixth row my data will be there with new row added. The same goes for removing rows (I guess this is something had to do with State).
I've tried different things (datatable and datagrid) but couldn't complete all 4 point described above. Did anyone had experience with something like this or have any suggestions?
Thank you,
Alex.
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alexfromto wrote: 3. the table will consist of 2 cell.
you mean, two columns?
I think that those facts are pretty okay with DataGrid. I have done something like that with Datagrid in ASP.NET 1.1...
alexfromto wrote: 1. the table should have 5 rows as default
you can bind with the empty dataset to your datagrid.
alexfromto wrote: 2. the table should have ability to add/remove rows if needed
For adding row, I used the footer template in Datagrid.
For removing row, I added the "Delete" link with command in grid template.
alexfromto wrote: a. Role - dynamic drop-down (data will be populated from db)
b. Name - text field
ItemTemplate is pretty okay for you. it allows you to add any web control (including dropdown ctl and textbox control) in Datagrid.
alexfromto wrote: 4. adding/removing rows should not affect data entered in other fields. Basically if I filled all 5 rows and want to add sixth row my data will be there with new row added. The same goes for removing rows
Yeah. It is very okay with Datagrid item template. but if you do some action, the postback will be occured.
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Yes. I mean 2 columns.
1. I have no problem creating DataGrid. How can I assign empty DataSet to DataGrid. I've built a table (5 rows) with empty cell and added to my DataGrid. Is this the way of doing it?
2. Do you have anything code wise so I can see how add/remove works?
3. I did it and had no problem
4. didn't get exactly what you mean here. Will I lose data entered or datagrid will keep it?
Thanks a lot
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OK. Firgure it out. Wow. Yeah.
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Hello,
I'm gonna be working for the first time with eBay APIs and I've been doin a little research abt this. I've heard that there are some 'Test Servers' on which you can test the working of ur application that uses web services. I really dont know much abt it honestly. So I wanted to ask if we can actually test the eBay API functions offline?
Thanks in advance
Rocky
You can't climb up a ladder with your hands in your pockets.
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well I got the answer now.
Its called the Sandbox Environment, which simulates the API Calls locally for the developers to test the working of their application
Rocky
You can't climb up a ladder with your hands in your pockets.
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Hi guys I got a bit of a problem that has taken me days to try and sort out and I'm getting nowhere.
basically I have to servers that are setup in a DMZ, as a workgroup, one server is a Application Server and the other is a Database and File Server. I need to be able to be able to upload files from the application server the file server via a UNC path. but everything I have tried seems to fail.
I recieve errors along the lines of "can't find part of path", "incorrect user/password", etc.
I have tried a Myriad of approaches including creating a user account on both machines, and impersonating that account, to write, Created a Virtual Directory and used :
string SaveLocation =System.Web.Hosting.HostingEnvironment.MapPath ("~/webmedia/article/" + fn )
To get the UNC path, Stored the UNC path in the Web.config file, but nothing seems to work.
I haved scoured the net for any information, but seem to have got nowhere, I have found one or two articles but they basically tell me what I have tried. I was wondering if anybody knows of any other Tut's/atricles I could read.
I have included some of my code in the help somebody could spot an error
HttpPostedFile selectedPDF = ImageUploadFile.PostedFile;<br />
<br />
if ((selectedPDF != null) && (selectedPDF.ContentLength > 0) && selectedPDF.ContentType == "application/pdf")<br />
{<br />
try<br />
{<br />
string fn = System.IO.Path.GetFileName(selectedPDF.FileName);<br />
string dir = ConfigurationManager.AppSettings["docpath"].ToString();<br />
<br />
string SaveLocation = ConfigurationManager.AppSettings["devdocpath"].ToString() + fn;<br />
selectedPDF.SaveAs(SaveLocation);<br />
.....
-- modified at 8:47 Wednesday 7th November, 2007
I have tried doing a simple app here locally on my own network and haven't even tried using impersonation, but it just works
here is the sample code. I am completely baffled
try<br />
{<br />
HttpPostedFile theFile = FileUpload1.PostedFile;<br />
FileUpload1.SaveAs(@"\\Cyko\d\" + System.IO.Path.GetFileName(theFile.FileName).ToString());<br />
}
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how should i use my code behind function thoug the javas script.currently what i am doing is , declaring the variable as public in the code behind , the on form load i am executing the fucntion and the function returns the value , and finally i fetch it form the source file using the following syntax,
<%=public var name%>
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Sonia Gupta wrote: how should i use my code behind function thoug the javas script
What's a code behind function? Do you mean your ASPX cs or VB code? If so, you can't directly. One option is to use Ajax - and please, if you go this route, buy some books on it, try out the samples and watch some sample videos before you start posting questions on it.
Deja View - the feeling that you've seen this post before.
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hi,
from the database i am getting a no like this( 2,3,6)...
i have a checkbox list and in the checkbox list i ahve to select the 2nd and 3rd and 6th checkboxes....
how can i do this in asp.net
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Pretty easy, all you need to do is first split up the string of numbers:
string myNumberString = "2,3,6";<br />
string[] myNumbers = myNumberString.Split(',');
then just loop over them setting that item in the checkboixlist to Selected
int index;
for(string myNumber in myNumbers)
{
if(int.TryParse(myNumber,out index))
{
myCheckBoxList.Items[index].Selected = true;
}
}
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Use the String.Spilit() method to change the string into One-Dimensional Array. Then iterate through the each Item of the CheckBoxList and check whether any Value in the string array matches with the Value of the ListItem. If yes mark that particular Item in the checkBoxList as selected/Checked.
string Value = "A,B,C";
ListItem lstItem = new ListItem();
string[] strArray = Value.Split(",");
foreach ( lstItem in chklstItem.Items){
for (Int16 I = 0; I <= strArray.Length - 1; I++){
if (strArray(I) == lstItem.Value) {
lstItem.Selected = true;
}
}
}
Regards
- J O H N -
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hi
i have assigned custom validator to textbox and calling on function to validate the string insert into the textbox on custom validator OnServerValidate="CheckImageFormat" event ..but it's not working properly.it works when page is postback..but i want to do the checking without page postback. have any idea then please help me
Naresh Patel
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N a r e s h P a t e l wrote: OnServerValidate="CheckImageFormat"
"OnServerValidate" mean the validation has to go to server and came back to client.. so, the Postback will be occured... If you don't want postback, you can use "ClientValidationFunction" of Custom Validator.... Of course, that function should be written in clientscript...
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i have a function defined in code behind.and want to call it in the source file, to make the hyperlink enabled or disabled.the function returns true or false.for the enabled funciton of hyperlink.the functio further access the database,from the database it fetches the boolvalue for the particular id .how should i call it for the enabled function of hyperlink.
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Use the onclick method of the anchor tag to call javascript which redirects if appropriate. Set the href to #.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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The situation is , i have a gridview that contains one rows ,
1.for hyperlink - for each row it has information for ten records , if the information pertaining to ten records are there in the database , then on clicking the hyperlink it shows the details of ten records , currently it shows what ever is there in database, i mean there may be 2 or 3 records information.
so that's y i want to restrict the user to first fill the complete information for ten records , only then u can view.
so i can either pop up a message box or i can make the hyperlink enable or disable.
in bothe the cases , i need to access the databas eto check the no of entries.
so what should i do?
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
-- modified at 7:24 Wednesday 7th November, 2007
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