I am using the C# code you posted in the link below,
[URL]
but when I run it I am getting the error:
"A column named 'link' already belongs to this DataTable: cannot set a nested table name to the same name."
If I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
View 1 RepliesI'm currently working on a small project and therefore created a gridview, including one bit column which has been linked with a checkbox in both the itemtemplate as the edititemtemplate (autopostback = true).Databinding for these two checkboxes has been linked (two-way) to the bit column.Now I want to display the gridview to end-users. They should be able to just click on the checkbox so they value in the database column gets changed as well (as I want to run update queries behind it), but not passing via the command column 'EDIT'.=> problem I'm having now is that the bit column in the database doesn't get updated.
View 3 RepliesSystem.Data.SqlClient is not filling DataTable named "Person" Go to [URL] Webpage message reads: Exception Details: System.Data.SqlClient.SqlException: Invalid object name 'Person'. Source Error:
[Code]....
Source File: d:hostingcforedDefault.aspx.vb Line: 41 Stack Trace:
[Code]....
How to get Column Data Type in Autogenerated Grid View ?
View 1 Repliesfor below i dont want to use sql Query bcz data is not coming from sql/oracle database.
its comeing from propertary database and data is in datatable .
This is datat table format :
[code]....
I have a datatable that looks as follows:
Make,Ford,0
Model,Fusion,0
Year,2010,0
Make,Ford,1
Model,Focus,1
Year,2010,1
I'd like to loop through each row and replace all the values of the same type in the 3rd column with a different value.
So for example I would change all the 0 to 1234 and all the 1 to 1235. So I'd end up with:
Make,Ford,1234
Model,Fusion,1234
Year,2010,1234
Make,Ford,1235
Model,Focus,1235
Year,2010,1235
Whats the best way to do that ?
i have a datatable with several columns and rows. now i want to copy the last column fully (all rows) and create the new column with that values.
it means last column values sholud be moved to new column (now this is the last column).
What I have is a datatable being constructed from Sharepoint API. We dont need to worry about the sharepoint api.The code where it fills the data is as follows
Datatable dt = new datatable();
Sharepoint.fill(dt);
Write what I want is as the dt is being filled is to create another column called full path which has a formula col1+col2I dont want to do a for next loop after the dt is filled . very slow !
I have on datatable in it there are columns like TimeStamp,value....Timestamp formate is mm/dd/yyyy
i want to convert all Timestamp value in dd/MM/yyyy format...i cant do it on database site not using orcale,sql.
Is it possible without loop?
I want to transfer data from datatable to a gridview with a hyperlink column. But dont know how to do.
I attach my code as below, what i want to do is to output 2 columns in gridview, and the first column should be a hyperlink. However, now the first column still shows nothing.
Web page code:
[Code]....
C# code:
[Code]....
I'm a bit new to this game. I'm trying to build a web page that simply scans a directory in the server and creates a web page with links to the files in that directory - sounds simple and should be easy to do !So I have a bit of code that reads the myDocuments folder in my web site and then populates a grid view hyperlink column with the filenames in the folder - wow it works !The only thing I am struggling with now is getting the hyperlink correct within the GridView so that the user goes to the actual document.So my code behind is;
[Code]....
which reads the file info in the directory myDocuments and binds the info to a datasource.So now I'm using that datasource to display the filenames in a gridview so that the user can click on a name and open the file.
[Code]....
But of course the Name field in the hyperlink column is only the name of the file - how do I append the relative link to the filename to make the full path to the file correct.I tried to make the Hyperlink column a template field and do something like EVAL("~/path/"&"Name") but that doesn't work :(
[Code]....
I am trying to update a column named td1 (smalldatetime) in a table
the sql query is :
Session("date") =
Date.Now
Dim sSql As
String = "update qa_segmentos set dt1 = '" & Session("date") &
"'"
looking in the autos window I read :sSql "update qa_segmentos set dt1 = '20/10/10 18:11:43'" String
The error that I get is:
The conversion of char data type to smalldatetime data type resulted in an out-of-range smalldatetime value.
The statement has been terminated.
Below is the code behind for a simple aspx page. The web form contains one GridView (GridView1) and one label (Label1). I create a Data Table, then add a row to the table. I then DataBind my GridView to the DataTable. (so far so good) When I run the page I do see the GridView and the single row of data. However the checkbox shown is not enabled, meaning the user cannot uncheck or check it. (As if was not enabled)
Imports System.Data.SqlClient
Imports System.Data
PartialClass test
Inherits System.Web.UI.Page
ProtectedSub Page_Load(ByVal senderAsObject,ByVal eAs System.EventArgs)HandlesMe.Load
CreateDT()
EndSub
PrivateSub CreateDT()
Dim dtAsNew DataTable
Dim col1AsNew DataColumn
[code]...
i build some shopping cart. I have Datalist that display products from SQL table (id, productName, productPrice) and "Add" button. After the user click the button the product appear in the GridView (im using Session DataTable) until now all fine and work greate! in every product i need to add 2 checkboxlist from SQL tables (its some extra to the product). How can i get the items the user was checked and put them with the product name in the same datatable coloumn? the aspx code:
[Code]....
this is the code behaind:
[Code]....
How to add new column to existing datatable which is inside dataset using C# .Net ....
View 1 RepliesI have an accessdatasource that pulls several columns from my users table including [userID]. Then I have a gridview that displays all this information by autofilling the columns. Finally I have added a column that I want to link to viewUser.aspx?userID=####. The #### would of course be from the query.
Here's my column that I've added:
<Columns>
<asp:HyperlinkField datatextfield="View User"
datanavigateurlfields="userID"
datanavigateurlformatstring="viewUser.aspx?userID={0}"
headertext="Link"
target="_blank" />
</Columns>
This is my first time using this so I'm not sure what's wrong. I don't understand the '{0}' part and that's also where the problem lies. On the viewUser page when I print the querystring("userID") it just shows {0} as expected. How do I get my userID in there?
how can i insert a file upload template column and link it to each row because each row has a unique idi have item code column and i am listing the grid upon the item code columnso for every item code row i need to use file upload to upload it s excel sheet
View 1 RepliesHow to create Rows and Column using Datatable Gridview Itemtemplate with multi header I need to create Datatable Gridview Itemtemplate fixed rows and column such as 7 rows and 7 columns
[Code]....
I have a treeview and all nodes are check box, when user clicks on a button, how can I get all the checked child nodes belongs to specific parent? I wanna something better...
private TreeNodeCollection GetCheckedNodeForParent (string parentNode)
{
TreeNodeCollection treeNodeCollection=new TreeNodeCollection();
foreach (TreeNode node in tvBaseline.FindNode(parentNode).ChildNodes)
{
if (node.Checked)
treeNodeCollection.Add(node);
}
return treeNodeCollection;
}
I would like to make the datagrid bound column to redirecting to the details page .
For example , when my mouse over certain row of bound column in datagrid , it will change the colour to blue . Also , I can click anywhere of the row and the will redirect to the detail page .
Notes : I do not want to use hyperlink column and do not want to fix the text for every row. I want to use datafield, CommandName and CommandArguement.
I have enabled User Rolls and assigned several Roll names such as 10, 11, 12, etc. I have a SQL Table that contains various fields of information including one named AuthorizedUserRoll, it's nchar(2).
A logged in user should only see the records in Gridview that matches his/her roll.
I'm using Web Forms and VB.
I have a datagrid control, the first column is Revno, currently presenting info in linkbutton. i want to do a condition based on another field docid, which gets true or false value from database. if true then present Revno in linkbutton otherwise show the revbnno just as a label., thatway users does'nt have ability to clickit.
<ItemTemplate>
<asp:LinkButton ID="lblRevision" runat="server" CssClass="Textboxes" Text='<%# DataBinder.Eval(Container.DataItem, "RevNo")%>' CommandName="FileDownloadRecord"></asp:LinkButton>
</ItemTemplate>
this docid field has flag true or false.
if true meaning show the revno as LinkButton, otherwise show the revno as label.
GetDocdetail(DataBinder.Eval(Container.DataItem, "Docid")
on the codebehind side i can use this function.
Public Function GetDocdetail(ByVal DocID As boolean) As String
If DocID = "true" Then
Else
End If
End Function
how can i sort the data in col of datatable or other way to sort
View 7 Repliesi use a datatable to populate my gridview, how do i retrieve database to datatable's column?
View 3 Replies
