As you can see there is a ControlParameter bound to a TextBox on the aspx page. So the content of this TextBox is a parameter for my SelectMethod. But there is a special button on the page: When this button is clicked and a postback occurs I don't want that the DataSource extracts the content of the TextBox to control the selection, instead I want to set a specific hard value "x" as the selection parameter.
How can I do that? Can I "disable" in some way the ControlParameter when this specific button is clicked and set my special value instead? Or is there any other way?
I get the following error when overwriting my asp.net .dll sometimes on my web server. The server is running Windows 2008 and IIS7. The only way I can seem to resolve the issue is to restart IIS7 completely.
Compilation Error Description: An error occurred during the compilation of a resource required to service this request. review the following specific error details and modify your source code appropriately.
Compiler Error Message: The compiler failed with error code -1073741502.
Version Information: Microsoft .NET Framework Version:2.0.50727.4016; ASP.NET Version:2.0.50727.4016
I am trying to capture some user input and add it into a database. Here is what I have: { CreatePost.aspx }IMG]http://i56.tinypic.com/n2ijgz.jpg[/IMG]And here is my code in the code behind file { CreatePost.aspx.cs }:
[Code]....
I have also went ahead with PeteNet's advice and added this to my web.config:
[Code]....
However I am still getting that famous error:A potentially dangerous Request.Form value was detected from the client (ctl00$content$txtBody="<p>Hello. This is ju...").I would greatly appreciate any help in sorting this error out.
I keep getting a db parser error. I took it from my text book assignment. Here is the error and code: I am confused with the problem
Server Error in '/' Application.
Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Unknown server tag 'asp:ControlParameters'.
I have two DropDownLists, and each one has a Control Parameter that references the other.
The idea is that if you select a value in either one of them, it restricts the possible values you can select in the other. And the user may select either one of them first.
Each one has an "All" option for selecting all values. (They are both used to restrict rows that populate a GridView).
This is all done using SQLDataSources.
The problem is that it doesn't seem to work at all. Both DropDownLists are empty, and the SQL that populates them never hits the SQL Server. But there is no error displayed.
If I have it going only one way, it does work, so I think the problem is the recursive nature of having them reference each other.
It would seem to be quite a common requirement, so its there any way of getting this to work?
if i click submit.. a file is then created in xml format but if i enter new data it will overwrite the same file how do i stop this..
this is the code i am using
Protected Sub btnWriteXML_onClick(ByVal sender As Object, ByVal e As System.EventArgs) Try Dim enc As Encoding Dim objXMLTW As New XmlTextWriter(Server.MapPath("contact.xml"), enc) objXMLTW.WriteStartDocument() objXMLTW.WriteStartElement("Feedback Form")
When I publish my Asp.Net MVC website to the production server (via VS2008), the web.config & castle.xml files are overwritten. The content of these files is obviously different between my local dev environment and the production server.How do I prevent these files from being published?
whenever we work with linkbutton then we always found linkbutton href="__dopostback(...)" but i want to overwrite this when i add linkbutton.attribute.add("href","myfunction") then i saw two href is there in source code. so i want to stop this. i want only my function will be there when i will write the code like linkbutton.attribute.add("href","myfunction").
I am attempting to set the content-type of an asp.net .ashx file to text/plain.
When I run this through the ASP.NET Development Server, the content-type is properly set. When I serve it through IIS7, however, the content-type (and any other header values I set) don't come through (it came through as text/html).
The only value set in the HTTP Response Headers section of IIS Manager is the X-Powered-By attribute. I tried setting the content-type here, but that didn't work. But if I removed the X-Powered-By attribute, it was removed from the header.
problem: bad design but this is what they want.I have a datasource which binds to a dropdownlist. This is fine. this displays companies (with companyID as the DataValueField)they then, underneath, want a seperator and then after that, a list of "groups".of course, DDL cannot have multiple Datasources. So how can I bind from 2 sources into 1 DDL? I cannot seem to think of a way. Even adding the items at the end of the databinding will not help as the GroupID maybe the same as a CompanyID for the DataValue.
How do you control database server access when you use datasources in VB 2010?How do you access multiple tables from a store procedure using datasources?
Explanation:My experience is with VB.NET for the most part. I've written a lot of apps drawing data through dataadapters into datasets and processing them to provide reports in aspx.
I'm starting to work in VB 2010 and those elements are no longer available. What appears to be the weapon of choice is the datasource.What I'm not seeing: 2 important things that I can't work without:
1. Control over when the database server is hit with a connection request; daMyQuery.Fill (MyDataSet) was an explicit command that I could use to collect my data on demand. From that point on, I could use the dataset as I wished to populate whatever controls or structures I wished - the database server was no longer needed and wasn't hit by my apps until another pageload.
2. Multiple Tables in a query result; This must be there, I just can't find the method by which to reference different tables in my SQL output. Previous, I would have a dataadapter which would use a stored procedure to deliver a dataset of multiple - sometimes many - tables for use in the application. I can't find the equivalent on a datasource.
So my two big-ticket needs - requests for assistance, really - are listed above: How do you get at multiple tables returned from a stored procedure;and;How do you keep datasources for hitting the dbserver whenever you use it if there is no equivalent to a 'fill' method?
I guess another - how would you walk through the rows of a dataset?
I have a validation method which passes the control of a failed validation ( IE TextBox in the Gridview row ) to a method which adds a validationError style.This all worked fine until I decided to use declarative css styling on the properties of the columns in the page IE Control-CssClass="someClass".
WHen I click the update and do find an error, I pass the control to have the validationError class appended. but it appears the declarative setting overrides this when it gets rendered.
i saw this post on[URL] so the problem is .... if there is a datasource in some editeitem template in grid view .... it won't be accessible from out of the edit-item field.....
here's my code...
[Code]....
that i have here is ID-column which contains a linqdatasource taking a where parameter from a dropdownlist and they are both in the same edit-template field.
and i have in another column (CourseTypeID-column ... edit-item template) a dropdownlist ..... now this dropdownlist i want to bind it to the linqdatasource exists in the ID-column (edit-item template)..... is that possible in the designer (or from) not code behind ..... and how ????
I have one grid in which i use one datasource to get several data . Now i want to ad a column in my grid and bind that column with a column from another datasource.
I've been filtering my gridviews with the FilterExpression of the underlying ObjectDataSource etc. I am wondering how I can implement filtering on my GridViews if I just directly databind it to a datatable etc?
I have created a web application will will eventually be the holding place for several reports. Rather than creating a new webform for each report, I want to use the same report viewer for all of the reports. I have created an AccountSummary dataset (AccountSummaryDS.xsd) that has two tables, one for the header information and one for the details. I have two webforms in the app, a Default.aspx that captures the necessary employee information for the query and the ReportForm.aspx that has the reportviewer control.
I came up with the code below for a Windows form application but am having issues translating it to be used in a webform.
i have a mysql database and a sql server database.there is a link between these two tables via a foreign key.is it possible to connect two datasources together in my datamodel? if so please can someone tell me how i can do this? i have them both present in the data model, i just want to be able to link the two databases together.i am using asp.net mvc, c# and entity framework - all in visual studio 2008
I would like a site that offers the users the possibility to search over 2 datasources but as i tried to indicate in the subject title the searches are one after another where the result of search 1 is used as a parameter for searching the second datasource. The order of the search would depend for what you search (ideally). Some "fields" or "data" of course appear in both datasources.
To get more specific: datasource 1 contains chemical structures and the associated "id" for this structure + additonal properties. You can search for chemical structures here. (chemically intelligent system). datasource 2 contains documents which are indexed (full text) and have metadata fields one of them beeing above id. No chemical search possible.
The idea is now that i perform a search by chemical structure on datasource 1. As as a result I get a list of id's. These id's are then past into datasource 2 as parameter + also all additionaly parameters entered. There are API's available to perform above searches on the 2 datasources. Is this a reasonable approach? Would it be better to create somekind of a simple datawarehouse, eg a table with all numbers linked to all documents they appear in? (would't know how to achievie this actually since it's the 2 datasoruces are not the same rdbms).
Is it possible to bind two separated datasources to one dropdown list such that they are both alphabetically sorted and seprated by some sort of line. I know there is a way to insert elemets manually, but I'm not sure of the 2 separate datasources. I've serached this forum and while there were several posts none of them offered any workable solution.
If i've the button outside an update panel (basically i'm using RadAjaxPanel by Telerik) it is working fine. But when the button is inside an ajax panel, even if i click OK for deleting the records the server side code is not called.
