I've got a ArgumentOutOfRange Exception when trying to get the datakey from a gridview.
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Does anyone has a solution for this error?
I have this code:
Protected Sub
GridView_RowDeleting (ByVal
sender As
The code above is attempting to get the text value of a hyperlink field in a gridview. (The gridview has a delete link also.) It displays 3 pages. I go to the last page and try to delete a file and I get this error:
Specified argument was out of the range of valid values.
Parameter name: index
It fails on this line:
hl = (GridView.Rows(e.RowIndex).Cells(1).Controls(0))
I have determined it fails on the Controls index. I use this exact code with an almost exact gridview in another web form and it works fine.
Specified argement was out of range of valid values. Parameter name i: That was my error see the code below:
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Was is causing the error and how do I fix it?
Synopsis: I have a AJAX enabled ASP.Net application, the purpose of which is to allow users to ad hoc drill an engineering database. The application UI is divided into three sections, Filtering, Column Selection, and Results. The filtering section (implemented as a user web control) uses a PlaceHolder control, to which I allow addition and removal of individual Filter user controls.
All of that works well. The Filter user control essentially consists of three ComboBox controls with SqlDataSources bound to each of those ComboBoxes, and a TextBox to enter in a value. The first ComboBox, once a value is selected in its list, passes the SelectedValue to the SqlDataSource of the next ComboBox, which uses that value as a Select Parameter so the DataSource can fill out the ListItems of the next ComboBox. So simply, the results of the previous one cascade to the next.
Again, all this worked well. But one of the requirements was to allow storage of these queries the customer comes up with, allowing them to reload the query at a later time to run again.
I implemented that by writing a simple set of container classes, Filter, Column, and Query, where Query has public arrays of Filters and Columns. I serialize that simple Query object, then store it as XML in my database. To reload it, I de-serialize the xml, and rebuild the Query object, which I then use in turn to rebuild the Filters and Columns.
And that is the problem. I am rebuilding the query, and I think I am setting up the Filters correctly. Everything reloads on the page, just as I had saved it. But then when I try to use the query, I get the error
System.ArgumentOutOfRangeException 'ComboBox' has a SelectedIndex which is invalid because it does not exist in the list of items. Parameter name: value
I believe the problem is that the SelectedIndex is attempting to set the index for the ComboBox before the DataBind occurs during a postback.What is curious about this is if I hadn't tried to load and initialize these controls myself and just added a bunch of fliters setting ComboBoxes as I go, it has no problem maintaining the SelectedIndex, the list of values in the ComboBoxes and so on during a postback. I don't believe in that case it is even doing a DataBind for those controls.
I have two gridviews, say 'A' and 'B'...I want to add all the rows of 'A' to 'B' while avoiding the duplicates....For eg:
View 10 RepliesIn nested gridview, i am finding some problem, i want to show child Grid headers in Parent Gridview. Can anyone tell me that how it is possible? Its very urgent. Waiting for quick response.
View 1 Replies I am unable to access the data in the gridview's selected row. I have done this lots of times but must be forgetting something.
Here is my gridview:
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I have a dropdownlist outside the gridview control. My griview control also have dropdownlist in the first column. I want to populate the dropdownlist inside the gridview control for all rows when the selected item is changed in the outside dropdownlist.
View 2 RepliesI have a customized gridvew i.e. grvResult. There is a textbox and a InsertButton in the footer.
If there is a data populated into gridview it is showing GridView footer and inserting data but if there is no data in gridview then its footer also not visible.
I have tried in two ways to make footer visible but it is showing following error:
Object reference not set to an instance of an object.
Tried ways:
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I was wondering if it is possible to add additional data to Excel document created from gridview. What I want to do is to manually add data to certain rows and columns (date, couple of titles, etc), but I'm not sure how to do it.
Currently I'm using the following code:
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iam using asp.net with c#, my grid contains 1st column is check box ,and paging is true ,iam displaying data from view that does not contain primary key, so based on this when user selects the no of checkboxes in 1st page and in another page some records then i want to transfer to another page gridview but it is not displaying. can you correct my code where iam going wrong
string constr = "Data Source=MAINSERVER;Initial Catalog=Inventory;User ID=sa;Password=nsg";
protected void Page_Load(object sender, EventArgs e)
{
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how to implement Insert feature to a grid view?I need to use fields with scroll bar inside of a grid view. Is that possible through the template field?
View 23 RepliesHow to populate dropdownlist in a gridview by selecting another dropdown in same gridview
i tried the code in driiopdownlist selectedchanged
dropdownlist d=(dropdownlist)gridview.findcontrol("dropdownlist1") but it gives null
Using vb.net/asp.net 2005.I have an inner gridview.The outer gridview is "Authors" and in the inner gridview (GridView1 below) I have to set it up so that the user cannot delete the last book from the inner grid, if they try to delete the last book from that inner grid then I want to show the exception message below.
So I am checking the GridViewRows1.Rows.Count which works great when I have one record (one book) to start with. The problem is when I have 2 books (for example). I am writing out the test statement below and the RowCount is always 2 each time, never decremented, even after I rebind.Editing this now: i realize that my initial logic is faulty because when I rebind my inner gridview I am not specifying which inner gridview so the result is that only the last inner gridview is being re-bound, so I think that I need to get the selected inner gridview and then refresh that...
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I had a problem with my site in the past couple days and have almost recovered, but now I'm stuck on some code that has an Auto-Complete feature, which allows a user to type a name of a pub into a TetxBox, and based on the returned names, the user can click one and see that name in the GridView (just below the TextBox). The GridView was set up so that there was an href that the user could click on and that would open a window and the user would see the pub in Google Maps. The code below works just fine for the Auto-Complete and the GridView.
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Here is the end of the working code. Somehow I need to use the code below to make
the GridView have a href to allow a user to click and see the pub in Google
Maps:
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The code above worked fine before, but I'm not sure how it was incorporated into the GridView, and since I had a problem with my site a few days ago, I haven't been able to figure out this part.I'd sincerely appreciate any help in getting this up and running again.
I currently have a gridview that has 1 column with radiobuttons. I then have a update button to update all the selected records. But what i want to do is add a step before the update. I want to add a multi-line textbox for each radiobutton selected to allow them to add notes/comments for each record before the update occurs.
Because the textbox will be large to allow them to enter the comments, i wanted to list them out seperately per record selected. Maybe a gridview is not what i need for the 2nd part, but thats the scenario and looking for suggestions on what / how to do it.
Example:
GRIDVIEW1
ID column1 column2 column3 radiocolumn
1 1111 2222 3333 Yes / No (selected Yes)
2 2222 3333 4444 Yes / No
GRIDVIEW2
ID NotesColumn
1 Texbox displays here
If the gridview binds to empty dataset, I need to still show a gridview so that users can ADD more using the textfields in the bottom of the footer template. Since the gridview is empty it won't bind not allowing rendering of the <footer template> I guess I should create a empty dataset if the gridview is empty. How do I check for this and can this be done in GridviewRowEventArgs
View 5 Repliesi am using Grid view. when ever bulk data is there in Gridview, Header and footer must not be move..
how can i do that.
I have a parent gridview which has a child gridview in the itemsTemplate. Both are binded to different SqlDataSources. I can successfully update and delete rows in the child gridview. After updating in the child gridview, some related data in the parent gridview are not updated automatically. So i have placed ParentGridview.Databind() in the rowupdated event of child gridview. But it doesnt look working.
How can i accomplish this?
I have nested 2gridview. I want to access textbox in second gridview footertemplate. How can I do this.My code is
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Code Behind
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Iwrite this code but I get
Object reference not set to an instance of an object.
im reading checkbox value which is checked on my gridview but as per my code is missing the 1st one which on top but i select from the middle then it is working fine here is link for gridviewhelper classes [URL] and im calling this code from gridviewhelper classes on page load event
Dim helper As New GridViewHelper(Me.GridView2)
helper.RegisterGroup("heading", True, True)
AddHandler helper.GroupHeader, AddressOf helper_GroupHeader
and here is my code
Dim sc As New StringCollection()
Dim id As String = String.Empty
For i As Integer = 0 To GridView2.Rows.Count - 1
'loop the GridView Rows
Dim cb As CheckBox = DirectCast(GridView2.Rows(i).Cells(2).FindControl("CheckBox2"), CheckBox)
'find the CheckBox
If cb IsNot Nothing Then
If cb.Checked Then
id = GridView2.Rows(i).Cells(1).Text
sc.Add(id)
MsgBox(id)
End If
End If
Next
I got a web page, it has a tabcontainer, within each tab, there will be a gridview, all the tabs and gridview are created at run-time, i have only one code, that I will loop through to create all those tabs and gridview. When I apply the sorting, and I click on the column name on any grid, it returned an error saying index was out of bound. BUT, when there is only ONE grid view created, it is working fine, I suspect it mixed up all the grid view's id and so on. But I have assigned different ID to gridview
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a1 a
1 qw
2 asa
i have two grid views
gridview1 has check box[a1] and one value[a](in total two columns) with objectdatasource1 for datareferencing from database
another gridview2 has to select only the selected/checked value of gridview1 of checkbox1
I'm lost. I have a sub gridview in a gridview. In subGridbiview I have a button. How do I can clicking the button and get values outside the gridview? The subgridview not present the events ...
------------------------Gridview 1------------------------------------------
| cell(0) | cell(1) | Cell(2)| Cell(3 - ITEM TEMPLATE) | -
| | | | # # # SubGridview1 ######### -
! x1 | Y1 | Z1 | # Cell(0) ! Button #-
! | | | ######################-
------------------------------------------------------------------------------
| | | | # # # SubGridview1 ######### -
! x2 | Y2 | Z2 | # Cell(0) ! Button #-
! | | | ######################-
------------------------------------------------------------------------------
how do I click on the child gridview and get the values of the parent gridview? no events in the child gridview no number indexrow on the parent gridview I'm lost.
I have one filed that is encrypted using Rajindal algorithm and stored in MSSQL db.When I retrieve that column in gridview it's displayed in encrypted. I have the code that decrypts it but the problem is:How can I all loop throw this column values in the gridview and decrypt them all and display it in the gridview decrypted.See my code below:
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