Web Forms :: Hiding Gridview Columns On Page Load?
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?
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.
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
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"].
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.
I am trying to set come columns to invisible after all of the rows are binded but I'm having trouble. I'm hiding columns that have empty data which I save in a session variable. This works fine. Then I tried changing the columns visible property using the ColumnByName routine in the DataBound but that must be the wrong event because I do not think the columns exist yet.
The columns are autogenerated btw.
Where can I set the columns properties after it has binded? Can i do this before the columns are autogenerated the the screen itself?
When I browse to my page that has the modal popup panel on it, the panel initially is visable, and when I do a postback it acts as intended. let me know if you need the master page....
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]
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?
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:
Shouldn't ScaffoldColumn(false) hide the field in the view? I create a strongly typed CREATE view (AddSO), expecting that the soID column won't be rendered and that the Label name of the field 'name' will be 'Full Name'. But the AddSO view renders the soID column and still labels the 'Name' field as 'Name. What am I doing wrong?
I am using a gridview where i have a table kind of structure inside each gridview row. Inside that table i am having various labels and corresponding values in front of them. Now i want to hide the label itself when the corresponding value is not fetched(or is null) from the database.
.I am new to asp.net.Is there any way we can limi the width of the gridview in the design mode.
I have to put 15-20 columns on the gridview.When I add columns to gridview the width shoots out of the page and the page design is seems ruined.
i placed it inside the panel and added scrol bars to it. it looks ok when debuggin i.e looks ok in internet explorer but in design mode it ruins the page design.
using above code i am able to print gridview directly without hidden fields.after added to hiddenfields to gridview , hiddenfield values are visible for printing.after i am using gridview.colums[i].visible=false column not visible while printingproblem is after print the gridview not visible whatever my columns set visible false.Example:at printing time i am set checkbox visible false, after printing i want reload same page with checkbox but check box not visible after printing gridview
I have 3 grid views in my ASP.net application Viewing the data from different tables and search input with button( for all 3 grid view One input field), when i give input and click on serach button only one Grid view should be appear rest of the 2 gridviews should be hide but for me when i change the input values previous Grid view also remain stationed on the screen.Gridviews are GVOpenorder,GVShip,GvSchedule and input field name is txtSearch,button name is btnSearch.
I hv Declared two Master page one Is Base and Derived.. Base Page Load is working but when i hv written load controls in Derived Page Load Using C# it's not working..
Somehow I need to hide a control on an EXISTING WEB PAGE.But the problem is, this control has code behind with VB.NET which I don't know how to read.. :( (I use C#)And this web page works as like an 'organic'. Controls are connected to all over other pages .This is the part to be not shown:
[Code]....
That uc4 prefix is defined at the top of the page: [Code]....
Some how I need to not show LoginControl1.Here is what I tried, first I tried to disable it using: [Code]....
I added Visible="false", BUT IT STILL SHOWS :( guessing visible="false" is ignored :(
Next I tried to delete that control from aspx page and commented out the codebehind function.THIS WORKED, but gave an error at the bottom of the page (yellow triangle error)...This is really hard for me because I am modifying a page which I did not write, nor the code is C# .
I have 2 gridviews. How to select automatically the first row of my gridview and based on that selection i have to display the first row values of second gridview in pageload
