Forms Data Controls :: How To Hide Empty Columns In A Repeater - Write The Logic For Hiding And Showing The Placeholder
Oct 20, 2010
I have a repeater control having columns in it.When I bind the control to a data source then some of the columns become empty when there is no data associated with it.I want to hide the column if there is no data associated with it.I was trying to implement a solution given in this thread:
[URL]
However,I am not sure how to write the logic for hiding and showing the placeholder.I have written some code for the same but that clearly doesn't work.The following is the .aspx as well as the code behind which I am using:
[Code]....
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Similar Messages:
Oct 12, 2010
I need to be able to check programatically if a SqlDataSource contains no rows, and make a Placeholder visible if it does contain rows, and invisible if it doesn't. I seem to be able to return the affected rows using SqlDataSource1_Selected, but turning the placeholder invisible never works.
turning the placeholder off and on depending on whether the data source contains rows?
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Feb 16, 2010
I have a Gridview and I want to hide a column when empty. The code works then the column is in Boundfield but not in Templatefield. Can anyone show me the code of how to do it in Templatefield?
Here's my code using OnDataBound event:
protected void hideColumn(object sender, EventArgs e)
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Mar 4, 2011
I am working with a gridview that pulls data from a SQL database based on selections in dropdown lists. The source table has six columns for attributes of the selection, but depending on what is chosen, there could be anywhere from one to six of those that are empty (all null values). When the column is empty, I would like to have it hidden so the page is less clunky and confusing.
I've searched around for an answer for the past couple days, but what I have found so far is either related to hiding columns that you know are empty which I will not know or removing them in the SQL code which I think doesn't work if the column is called for in the gridview code and doesn't exist in the query.
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May 25, 2010
I'm so confused I wasn't even sure what to make the title so that it would make sense.
Here is what I have:
[code]...
I have links at the top of the page that are the letters A-Z. What I want to do is click on one of the letters, then show only the div IDs that start with that letter. I can't figure out how to do this since I'm dynamically creating the ID names. I had it set up nicely with Javascript and CSS, but the function call was inside the repeater. The layout is changed now, and I don't understand how to make the div ID available outside the repeater.
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Mar 18, 2010
in asp.net page user able to select gridview Columns, and it will hide remaining columns and that selection done by check box with column list bellow is Image link , what exactly I am looking for [URL] it look bellow after selection of column done [URL]
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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:
ImageButton b = (Button)sender;
GridViewRow row = (GridViewRow)b.NamingContainer;
if (row != null) {
int rowIndex = row.RowIndex;
How do I use my selected row index to call the nested gridview to be visible and not visible?
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Dec 15, 2010
I have a grid view which is made up of bounded and template columns. I have a check box which i select to show all/ show non empty columns.
My issue is hidding the template columns. I have the following code:
[Code]....
My issue is with the piece of code
[Code]....
How do I find the ID of the label in grid view column for the template column?
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Aug 16, 2010
i want to add and access to placeholder in a repeater control. for example,
[Code]....
how can i acces to placeholder, on codebehind. i couldn't acces with it's id.
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Jan 4, 2011
I dont want them to be able to select a listitem until they click edit .
here is a picture of what it looks like now.
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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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Nov 12, 2010
what changed do I need to make to my code for it to achieve what I'm after.
At the moment I am getting a "cannot cast to type" error message with the below code.
I have also tried calling the ItemDataBound method in with the parent repeater tags and had no errors but when I clicked on the button it would just move back to the top of the page and would not hide or show any data. Also I have made the div style to none but the first record still shows its child but the rest don't.
[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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Feb 9, 2011
how to hide a repeater column based on the user privileges.
Say I have:
<asp:Repeater ID="repeater" runat="server>
<HeaderTemplate>
<table id="table_id">
<tr>
<th>Name</th>
<th>Secret Info</th>
<tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("Name") %>' /></td>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("SecretInfo") %>' /></td>
<tr>
<ItemTemplate>
<AlternatingItemTemplate>
<tr>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("Name") %>' /></td>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("SecretInfo") %>' /></td>
<tr>
<AlternatingItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
How would I only display the 'Secret Info' column to logged on users?
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Aug 22, 2012
disable linkbutton if gridview is empty in child pages. I have a Export to Excel LinkButton in master page and in child page I have textbox wherein I pass the input based on which the gridview loads. When the child page loads the Export linkbutton should be disabled. After entering the input in textbox on click of the button the gridview will be loaded wherein now the Export linkbutton should be enabled to export to excel.
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Feb 10, 2011
provide an example to do that... "Hide column if row is empty" in Databound()
datasource could be .1
coulmn: id-value1-value2-value3
row: 1-4-3-NULL (output: hides row value3) because the value is NULL
.2
coulmn: id-value1-value2-value3
row: 1-4-NULL-NULL (output: hides row value2,value3)
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Oct 6, 2010
i have a gridvew on my page as below and above it is a heading. If the gridview is empty
then the page is blank but the header above is still there which does not look right. SO i want to hide the header as well but dont know if I can put the <h1> in the gridview or do i need to call some other code to check if gridview is empy and then hide the DIV??
[code]....
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Dec 24, 2010
I am using ObjectDataSource as a datasource for the GridView. ObjectDataSource has folowing select parameters
[Code]....
And the selecting event of ObjectDataSource is
[Code]....
GridView has EmptydataRow which I want to hide when Session["TodaysDate"] is null. I tried
[Code]....
But still EmptyDataRow will appear
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Jan 18, 2010
I've created a stacked bar chart - so there are multiple series in a line. The series display the value, but when the value is 0 I don't want the value to be displayed because if there are multiple 0 value is starts to look like 0|0|0|0 i.e. not very nice on the eyes. I'm wondering if there is a way i can say if the value of the series is 0 dont display the value.
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Apr 29, 2010
I want to hide a grid view column if that column is empty. How do I do this? I dont have much exp. with grids.
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Feb 16, 2010
In a DetailsView Templatefield i have some binded Labels.
I need to show - hide Templatefield or the detailsView if Label1 is null - empty.
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Jul 16, 2010
I would like to hide a submit button if a DataList is empty. I don't really know the code. If you submit an answer please show me the code also. I have to do it in VB.Net. I googled and found the following code that I place in the code behind under the Page load event.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim dv As DataList
dv = SqlDataSource3.[Select](DataSourceSelectArguments.Empty)
[code]...
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Jul 21, 2010
I just hit the same problem as described here: [URL] - GridView paging with ObjectDataSource. I see the column headers but no data, and I know for a fact my method returns a DataTable with data in it.
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Apr 1, 2011
I want to hide all FK Columns in all tables. I am using Asp.Net Dynamic Data 4.0.
I tried to use this code:
[Code]....
And then in List page template call:
[Code]....
But this does not work. If I set breakpoint in function GenerateFields it newer stops there.
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