I have a table called category that has tow attribute (Cid,Name)
what can i do to insert category name only without allow user to insert category id in my webpage, I use view detail control and make the wizard link but when run the error message appear (Cannot insert the value NULL into column 'Cid)
I am LINQ querrying against a datatable. However, I am unsuccessfull with catching null values. Here is my code that is giving me the following error.
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I am checking to see if minperc is null. However to check that it still is trying to convert the value to double. Cant figure out a way around it. Here is the error: Cannot cast DBNull.Value to type 'System.Double'. Please use a nullable type.
I have a table converted from Access and the identity keys were lost. Now I need to make the id column the identity column, but it already has a lot of null values, how do I auto generate integer values for the null rows? The row ids are incremented, so if there is a way to auto increment the ids
Now the issue is that that every document doesn't has document number. I want to make invisible the docuNumber column of the grid viwe if all values in the docNumber retrieved are null.for example:
docnumber tite null Document 1
null Document 2
null doucment 3
null document 4
if returned result match above where all docnumber are null then make the gridviwe docnumber column ivisible eslemake the greidviwe column visible.
I am trying to insert NULL value in oracle database using asp.net form. and its not inserting null value check my below code and guide me what changes I have make
Dim cn As New OracleConnection("Data Source=ab; User Id=abc;Password=abc") Dim SQL As String 'build the INSERT statement Dim xy As New System.Text.StringBuilder 'Dim strDate As Date...............................
True) to update database row that returns null values from date and numeric columns,Whenever i try to update same row with null (or empty) values on both date and numeric columns, it results in sending '01-Jan-0001' for date column and 0 for numeric column. I want the user to have the options of null or corresponding values for the update.
My site was woking fine, now i noticed that i get an error "Microsoft JScript runtime error: 'null' is null or not an object" when i checked the view source, i saw the following system generated code
<script type="text/javascript"> var Page_ValidationActive = false; if (typeof(ValidatorOnLoad) == "function") { ValidatorOnLoad(); function ValidatorOnSubmit() { if (Page_ValidationActive) { return ValidatorCommonOnSubmit(); } else { return true; } WebForm_AutoFocus('txtMailAddress');// --> IS THIS RIGHT???? out side the braces??? </script> </form> </body> </HTML>
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:
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.
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 am not able to understand what is the problem with My sql ..as same query is run sucessfully while i use SQL Server 2005 whit out any Exception or error.........
Select Count( Date ) From Attendancemaster Error in SELECT clause: expression near ')'. Unable to parse query text.
this is very simple query run sucessfully in SQL Server 2005 but not in
MY SQL and giving Error..and the query on which any datetime avar comes in WHERE clause allso generate error always....?
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.