Web Forms :: Hiding Hyperlink On Webpage When Gridview Is Null?
Aug 26, 2010
I have 5 hyperlinks, each of which represents a page number 1 thru 5, set up as follows:
[code]....
return parameters; The database records have a "page number" column populated with numbers 1 thru 5 to determine which records are displayed on each page in a gridview. A data set may or may not contain records for every page number. This is working...giving me the right records for the corresponding pages. But I need to hide the hyperlinks for the pages that don't have any associated data. For example, all 5 page number hyperlinks are displayed even though the dataset only has records for pages 1 and 2, but not 3 thru 5.
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Sep 2, 2010
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May 25, 2010
We have a MS Access 2007 database that has a hyperlink column in one of the tables. I'm using Visual Studio 2008. I need to have the same column display in a gridview in ASP.net and have it function just like in access. In access, the user clicks the link and either the file or the wepage opens just fine. In the gridview in asp.net, if we click on the link it does "nothing". The links are to files on our network and to files on other people's websites and the paths are tested and work properly. The name of the column that holds the hyperlink is named MSDSLinke. Here is the code I am using:
<asp:TemplateField
HeaderText="MSDS"
SortExpression="MSDSLinke">
[code]...
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Apr 15, 2010
I am hiding a TextBoxin my aspx page like this: myField.visible=false; Now I have a DropDown as well which tries to access the TextBox on IndexChange. The problem is, it cant access the hiffen TextBox and I am getting document.form[0] is Null or Not an Object. How can I solve that? Is the some check for that in JavaScript?
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Mar 29, 2011
in my web application i am trying to open one document file by clicking on hyperlink on webpage,
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Aug 6, 2010
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Nov 8, 2010
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Jul 26, 2010
I am trying to display contents of a folder in a hyperlink. I am using masterpage also. The hyperlinks are not shown into the content page. what to do for that?
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Dec 6, 2010
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Aug 19, 2010
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Sep 23, 2010
I am having some trouble hiding a column in my GridView. For some reason when I do the following:
[Code]....
It hides the column correctly but also leaves an empty gray column at the end of my grid which is about 5px. Ideally I don't want to remove the column but hide it, but if I do remove it is it possible to remove the binded that column represents?
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Sep 21, 2010
I need my gridview to display no records when the user first lands on the page. Right now it's showing all records by default based on a query I've defined in a Table Adapter in my dataset.
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Jul 19, 2010
<asp:TemplateField>
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Feb 29, 2012
I've added this to the code behind:
'Private Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound
GridView1.Columns(2).Visible = False
GridView1.Columns(3).Visible = False
GridView1.Columns(4).Visible = False 'End Sub
When I select another button from the radiobuttonlist I want this to fire (onselectchange). It works but only the first column is visible. So how do I add the above code to pageload?
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Aug 10, 2010
My gridiview is mostly templated fields.
I have searched far and wide and discovered that if you hide gridview colums in the Gridview's databound event, as per the code below,then the objectdatasource binds multiple times according to the number of columns you are hiding. This is definitely the case.
[Code]....
[Code]....
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Jan 14, 2010
I have an image button on my gridview in one column, and in the next column, I have a nested gridview. What I am looking to do, is to use my image button as a way to show and hide my nested gridview. I do not want to use JavaScript, because my page already uses a great deal of JavaScript. Therefore, I want to use code behind on the button, this is what I have done so far:
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if (row != null) {
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How do I use my selected row index to call the nested gridview to be visible and not visible?
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Feb 11, 2010
I was wondering how to hide a control(lblPrice) in a gridview(Gridview1)'s templatefield, given certain conditions? Like:
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End If
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Nov 23, 2010
Here's the background: I have a GridView with suggested meetings. A logged in member can view the suggested meetings and click button "Show" to view all suggested occasions for every meeting. What I want to do now is to hide button "Show" for a logged in member if she/he owns the meeting (i.e. is the one who suggested it = Session["memberID"]).
My problem is this: All buttons "Show" are visible. I want to hide button "Show" in those cases where Session["memberID"] is identical to dr[0]. 'ID' in the SQL statement is the ID of the meeting in the database and meetingID are the ID's of the meetings shown in the GridView.
Here's the code:
[Code]....
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Feb 29, 2012
Here's my radiobuttonlist:
<asp:RadioButtonList ID="Pending" runat="server" AutoPostBack="True" OnSelectedIndexChanged="Populategrid">
<asp:ListItem Value="250">Over 250</asp:ListItem>
<asp:ListItem Value="300">Over 300</asp:ListItem>
<asp:ListItem Value="350">Over 350</asp:ListItem>
<asp:ListItem Value="400">Over 400</asp:ListItem>
</asp:RadioButtonList>
I have a gridview set up to bring in all of the items listed in the radiobuttonlist. When the page loads the first time it comes in as showing Over 250 only:
Private Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound
GridView1.Columns(2).Visible = False
GridView1.Columns(3).Visible = False
GridView1.Columns(4).Visible = False End Sub
This is the code behind:
Protected Sub PopulateGrid(ByVal sender As Object, ByVal e As EventArgs)
'Select Case Pending.SelectedItem.Value ' Case "300"
Dim conn As New Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings("PendingClaimsConnectionString").ConnectionString)
Dim cmd As New Data.SqlClient.SqlCommand
[code]...
I'm getting an error under the If pending.selected value = "300" and .Parameters.AddWithValue etc...saying operator AND is not defined for types Boolean
Private Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound
GridView1.Columns(2).Visible = False
GridView1.Columns(3).Visible = False
GridView1.Columns(4).Visible = False End Sub0
[code]....
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Mar 3, 2010
I have a gridview control which gets data from database. One of the column is a checkbox and based on the value of the checkbox, I need to display 2 more columns. Currently I am having 2 issues:
1. I am able to achieve this when OnDataBound event gets triggered. Basically I am checking the row state and type and if it is in Normal mode I check the status of the checkbox and based on the status I am setting the style on the columns I want to hide (columns contain checkboxes). But for some reason, I am not able to hide the header. The GridView shows the header but the text boxes which are in the columns are hidden.
2. During Edit mode, I have attached a javascript to the checkbox and when the status of the checkbox changes, it hide/unhides the columns, again header cannot be made hidden. Also, if I use the Visible property of the header, I can make the header invisibly (only using the code behind) but when javascript is invoked on the checkbox during edit mode, it cannot find the controls as they are not visible and hence does not do anything. Since TemplateField does not support style property I can't even set the style["display"].
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Oct 25, 2010
using vb.net/asp.net 2005
I have a gridview with columns (pseudo-code):
<COLUMNS>
AuthorFirstname
AuthorLastName
BookTitle
YearPublished
</COLUMNS>
what I would like to do is to only show the AuthorFirstName and AuthorLastName columns for the first row of each author. I am easily doing this with:
[Code]....
However the issue that I'm seeing now is the formatting what happens is that after the first row that the Author names are hidden but then the BookTitle and YearPublished become the new cell(0) and cell(1) respectively which means that book and year are displaying underneath the author names columns. so my goal is to do 2 things:
1 have BookTitle and YearPublished render under the correct headers and
2. For the second row and after I would like the cell to appear the same as the background, I dont want the user to be seeing what looks like an empty cell or textbox there.
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Jul 27, 2010
I have been trying to hide a column but make use of the value in another function but the function i am trying to hide it give me and error at the embolded line. System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Public Sub FetchDetails()
Dim valtable As DataTable = New DataTable()
valtable.Columns.Add("LINK")
valtable.Columns.Add("WATCH PERIOD")
valtable.Columns.Add("DAY ENTRY")
valtable.Columns.Add("listid")
Dim seltext As String = "SELECT [Watchlistname], [Watchlisturl], [Watchlistdate],[listid] FROM [Watchlist]"
Dim madap As SqlDataAdapter = New SqlDataAdapter(seltext, Connection())
Dim mdset As DataSet = New DataSet()
Dim i As Integer = 0, pager As Integer = 0
madap.Fill(mdset, "WATCHLIST")
Session("tab") = mdset.Tables("WATCHLIST")
For Each arow As DataRow In Session("tab").Rows
Dim valrow As DataRow = valtable.NewRow()
valrow("LINK") = arow("Watchlisturl")
valrow("WATCH PERIOD") = arow("Watchlistname")
valrow("DAY ENTRY") = arow("Watchlistdate")
valrow("listid") = arow("listid")
valtable.Rows.Add(valrow)
Next
'Dim str As String = ChrW(8358)
gridWatchlist.DataSource = valtable
gridWatchlist.DataBind()
gridWatchlist.HeaderRow.Cells(1).Visible = False
gridWatchlist.HeaderRow.Cells(2).Text = "WATCH PERIOD"
gridWatchlist.HeaderRow.Cells(3).Text = "DAY ENTRY"
gridWatchlist.Columns(4).Visible = False
End Sub
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Apr 28, 2010
Working on a site where a user does a search, it takes the input from the user and then runs an SQL command to return the data in a gridview for the user to see. I also have a button where the user can see all the results from the DB (this will be taken out later but for now the DB is pretty small) This is all working fine, but the problem I am having is that when you look at the page source the gridview populates everything in tables on the page. This makes it really easy to just copy and paste and get everything from my database. How can I go about displaying the information to the user in a gridview, but hiding the table information in the html page source?
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