Data Controls :: Selecting GridView Row From JavaScript Throws Error
May 7, 2015
Server Error in '/bramandam site' Application. Invalid postback or callback argument. Event validation is enabled using <pages enableEvent Validation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
[ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager. Register For EventValidation method in order to register the postback or callback data for validation.]
I have designed a gridview one of the fields of which I want to send the user to an URL onclick. After browsing the net for a while, I opted for converting the BoundField to a TemplateField. The same OLAP metric ([Measures].[GP]) works fine in the bound field yet produces an error in the Template:
I am fetching some data from Db and displaying it in a textarea using jquery in the following way.$('#textareatest').val('<% =teststring %>').It is possible that the string 'teststring' can contain XHTML line breaks(<br/>).whenever the string contains <br/> I am getting the 'unterminated string literal' error.I saw a number of posts considering '' as line breaks and suggesting to escape it.I tried to escape the <br/> similarly,but it didn't work.
The following code works well as long as I pass a querystring value to the datalist.
Private Sub BindGrid() Dim id As Integer = Integer.Parse(Context.Request.QueryString("id")) Dim strConnString As String = ConfigurationManager.ConnectionStrings("Conn").ConnectionString Using con As New SqlConnection(strConnString) Using cmd As New SqlCommand() cmd.CommandText = "select Id, Name from tblFiles where Id=@Id"
[Code] ......
However, the page errors with the message "Value cannot be null." if I don't pass a value. I know that DataList does not have an EmptyItem Property like a Gridview control. I do not want the page to error if I don't pass a value. Need info to deal with empty values in a datalist.
Most websites have pointed me to this code to use:
The 'list' throws an error. The error is "Too few type arguments to 'System.COllections.Generic.List". I am not sure if the code is written in C# and that is what is causing the error. It seems that it should work but I can not figure out the 'list' error.
I've been working on a webform to pull data from an oracle database v10. I can create a gridview1 with Selection enabled and it will populate with data without a problem. However when I create a second gridview and bind with a control to the first gridview, I get the following error at runtime when I click on one of the Selects.
I have a page that successfully displays a gridview. I am not able to select any of the rows. I put a breakpoint in the GridView1_SelectedIndexChanged method but it never gets executed. When I click on the "selected" column in the row I want, I just get the The page cannot be displayed message in my browserIs there something I need to do to make the rows "selectable"
I am sure it must be a way to do this but I don't know how. I have a gridView2 that is called onto the page from a GridView1. I have enabled select on the GridView2 and need to get the values inside the cells. I thought about using SelectedDataKey but I need a way to select the row in the GridView using code.
I am trying to use GridView in my asp.net page. My requirement is to select an entire row by clicking at any place(field) in the row. Is it possible to accomplish this without using Links or buttons for the fields..? I have searched the net but couldnt find any answer. Is it the GridView designed not to allow selection of a row..?
I want to select a row in gridview and add the data of the row into a DataBase Table.
I have 2 tables
Table A and Table B.
I am displaying Table A data using gridview.When the user clicks the select command button in the gridview then i need to add that row data into Table B.
I have a GridView control which is populated by an SQLDataSource. When I select a row the details are shown in a DetailsView control. Is it possible to intercept the select and run a VB subroutine at the same time so that I can make a Panel in a separate part of the page disappear?
I have a gridview that is built based on my objectdatasource.. so at the moment, i have 1 gridview linked to 3 different objectdatasource resultsets.. my question is.. only 1 of the 3 do i want to allow or should i say enable the "GridView1_SelectedIndexChanged" ability. Is that possible, that when i bind the datasource to the gridview for that one, i can enable that?
Given a gridview has 10 pages comprising of 10 records/page, how do I programmtically select a particular page in the code behind ? For instance, I'd like to set page 5 as the current page of the gridview during databind. I do not have any codes at this stage but this is what I'd like to achieve.
Can I have a example for Selecting GridView Row by clicking anywhere on the row without select command and also mouse over and mouse out background color change.
As I understand the "gridview" control has a select link that can be enabled, I am fairly new to web development but what I was hoping to do was to click on the select link and then have the record that I have selected display on a seperate webpage. Is this relatively easy to do? Can anyone point me in the right direction?
in my girdview i have a template field wihtin linkbutton "Edit". i set the property visible=false
[Code]....
in code behind i set it to visible=true when selecting a row.On selecting an other row - i want to hide the previous linkutton and show the linkbutton in the new selected row
Now when I select "Edit" it increases the with of the gridview and makes scrollbars because the width increase. This is because it creates texboxes for each column for me to edit...but the width increases soo much..
I've got a gridview that will allow clients to edit options they've already entered on another page. The gridview has three radio buttons in it each with a value of 1,2,3. The option value in the dataset is 1,2 or 3 respectively. I would like to have the radiobutton with the corresponding value selected in the gridview so they can see what they previously chose and will then be able to edit, if they wish.
AutoGenerateColumns: Flase/True ( i tried both) If i remove the gvOff.Columns[index].HeaderText portions, GridView works fine, but when i put the gvOff.Columns[0].HeaderText, i get the exceptional error.
, i couldn't solve it. If you need further info, inform me.
EDITED:
Hold on! I commented the HeaderText portion and tested int i = gvOffer.Columns.Count; I found count is 0 eventhough the columns print out with DataBind()... Why? NOTE: AutoColumn in this case is set to true. I guess i will have to edit the column names from DataTable.
