I'm getting a "no data exists for the row/column" error when i am giving wrong value in key column and press button to import data from excel,how can i fix this error and avoid collapsing the application.
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I am having a slight problem with a feature I am trying to get working on a website I am doing. I keep getting the "No data exists for the row/column" error. And the problem appears to be with this line of code:
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I have some code with a connection string going to a mdb, the query looks correct to me and I know that the data stored in the table exists but when I run the query in my code it says: No data exists for the row/column.
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It has crossed my mind that perhaps the way the data is put into the program is not compatible with the data in the database, I don't know if that is a valid thought though.
how can we determine the exactly datagrids row and column that exists a button that has been pushed?
Protected
Sub ela(ByVal
sender As
Object,
ByVal e
As
System.Web.UI.WebControls.DataGridCommandEventArgs)
' Dim id As Integer = datagrid1.DataKeys(CInt(e.Item.ItemIndex))
Dim id
As
Integer = e.Item.Cells.GetCellIndex
Response.Write(ID)
End
Sub
but how exactly we determine the row and the column?
I would like to check whether a folder exists or not if not create. I'm sure this folder exists, but for some reason I get "false" when I check with "Exists" method.
The only reason I think could be because of the W: drive? I moved this application to production site and even there it returns false.
while I'm type in Windows explorer on my localhost and on the server "W:/Webs/ASPPages/cropper/uploads" it opens this folder. So my localhost and IIS server has W: mapping.
for test I tried to create the folder then it says can't find the path...
userFolderName = @"W:/Webs/ASPPages/cropper/uploads"
//I also tried @"W:WebsASPPagescropperuploads"
//I also tried @"W:WebsASPPagescropperuploads"
//I also tried "W:\Webs\ASPPages\cropper\uploads"
DirectoryInfo dirInfo = new DirectoryInfo(userFolderName);........
I have a MySql function that i wrote in Query Broswer, that adds a new entry into the "customer" table.
The values are provided from an .aspx page, and after the insertion, the function should return "1" (int value). So, my .aspx page is:
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I am developing web application using csharp and MS SQL as database. There is a column in table that is storing values which as numbers and letters. Letters are in front like JK26262, JK26263,JK26263.
Now I want to select numbers only from a table column and leave letters. In other words I want an select statement that will select values as follows:
26262
26263
26263
How can Iachieve this?
i have a question how to retrieve the row values as a column. please check the below tables i need the query for this table.
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I'm writing a function in "Query Browser" to add some values to a table.
The function should get this value when the stored procedure is called upon, thus te code looks like:
INSERT INTO customer(customer_name, customer_city) VALUES (@customer_name, @customer_city);
But when trying to execute the function, it says "customer_name can't be null"
i thought maybe it just waiting for the values to be sent from .aspx page, but yet again, i get the same error message.
I have read the excel in asp.net. I am using OledbDatareader for read the column name.
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Now my problem is the "date" field. If Excel sheet having column name "Date" then i got the error. i could not use the Column index because its also not fix. How can i ignore the upper case charactors in column name ?
I want to update multiple column of a table using subquery ...My sample code is shown below
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its throwing syntax error...I dont know where i commiting mistake.
I am doing Import/Export. While export i want to disable some column in excel sheet, so during upload or import same primary key I can use, instead of user modify such column.
View 1 Repliesi need to download a file directly from a table's BLOB column .
i used this procedure, but i got the error:
SQL> exec download_blob;
begin download_blob; end;
ORA-06550: line 2, column 7:
PLS-00905: object IFRSCD.DOWNLOAD_BLOB is invalid
ORA-06550: line 2, column 7:
PL/SQL: Statement ignored
The code is:
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environment: VS2008, MySQL 5.1.45, .net Connector 6.2.2
Error msg:
NoNullAllowedException: Column 'idNames' does not allow nulls.
The MySQL DB has on "idNames" (Primary Key) a tick-mark for: primary Key, Not Null, Auto-Increment Also: I can add/retrieve records via the 'MySQL Query Browser'; I see the data via VS2008 'Preview Data'!
As said in the comment below; when the 'idNames' is explicitely given the rows.add works fine. So it seems that I miss something around the 'auto-increment' business!
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I tried to query an excel file which contains a lot of customers' information but my problem is most of those don't have a specific column names. E.g. it's in the following format. (Excel File)
A B C
Info1 blur blur
Info2 blur blur
Info3 blur blur
So, when I query using SqlDbDataAdapter, in my DataTable, info1 blur blur becomes column header. e.g. it's in the following format. (DataTable)
Info1 blur blur
Info2 blur blur
Info3 blur blur
I been working on it so that it actually goes down one row and Change the column name in the DataTable into some appropiate name. Something like the following format.
Name1 Name2 Name 3
Info1 blur blur
Info2 blur blur
Info3 blur blur
Is there any way that I could work around it rather than actually going back to change the excel files ? Because I have like 1,000 excel files in that kinda format and seriously giving me headache now.
(int) faultsGroup is 0 or 1 but i always get this error: Column 'FaultGroup' cannot be null Does anyone tell me why? Syntax looks ok.
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I use Mysql database, in this i create two table A, B. table A column x and is FK of second table B's column m,n,o provide does it possible that x referncing to foreign key of table B columns m, n , and o all.
View 2 Repliesi want to develop a data access layer ,it can support multiple database like oracle ,Mssqlserver and Mysql using enterprise library and C#.net 3.5 based on database connection
View 1 RepliesI am looking to sort a column on my gridview by simply clicking on the column rather than clicking on the column header. In the design I have been given, the column header will not be shown, and I need to be able to give the user to sort this column, by simply just clicking any where on the column.
View 2 RepliesI have a gridview which is binded to a Sqldatasource. I would like to replace a column data field value to 'Not Applicable' if that column has got a value of 2 in database.
View 2 RepliesI have a database for a shop. Now I have run into problem when I'm adding products. I have a page where i add general info of the product that will be adding to the product table. Then I should have a page where I can add colors and sizes and so on. But how do I do that? When I add the product I set a price in the productdetail table and colorId and sizeId is sett to null. If I add a color to the table how do I do this the easiest way? I will not have a product where both colorId and sizeId is null. I have this SP and table structure. Then I'll do the same when I add sizes.
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i have a grid view and i use TemplateField.
when i am in ItemTemplate all the column (7 column) are label so it fit to the current screen
by when i use EditItemTemplate or InsertItemTemplate the coulmn don't fit the the current screen and
i have to use the ruler in order to see more information about the cell (which is ok - because in each cell i have a dropdownlist or long textbox)
but when i drag the ruler to the right size to see more information only the cells are moved but the header coulmn stay so i see the current coulmn with worng header coulmn
I have a form for data entry which has a checkbox for featured item.
Only one feature item should exists in the database.
How can I check when doing the insert if another item in the table is a feature item?
I would likt to deactivate the one as feature and activate the new one.
I am using a sqldatasource for filling one GridView and on page loading or before taking any action, there is no data (default value=null) and normally the datagrid is empty (using emptydatatext="no records found etc etc...").. Issue is I can not see the header of that grid in empty case, but only the emptydatatext!
I have tried to use some code of the references below, but no success, because I'm not using DataTable control as a DataSource, but directly filling the gridview from sqldatasource! useless references:
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P.S. I'm not usign DataTable as a DataSource, but sqldatasource (from the Data Controls), and I want to show header, when sqldatasource is null or empty ?!
I have a boundcolumn that outputs string numbers. I have another column of checkboxes next to it. I need to have it so that when a user checks off a check box the value stored in the string column to the left is then plugged into a function on the server. How can I acheive this?Here is my code:
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