Forms Data Controls :: Disabling A Column Of Dropdownlists In Gridview?
Oct 20, 2010
I am filling a gridview with data.
column 1 is a dropdownlist <ddlGrade>
column 2 is a checkbox <cbxNeverAttended> not visible
column 3 is a textbox <tbxLastDate> not visible
in the 'GridView_RowDataBound'
i determine if a ddlGrade value already exists and if so, make it selected in the dropdownlist
also, if the value of ddlGrade is a "U" I make cbxNeverAttended and tbxLastDate visible
However, if cbxNeverAttended or tbxLastDate are both empty strings (and ddlGrade has the value "U"), I want to disable all instances of ddlGrade in the gridview (essentially forcing the user to enter a value for cbxNeverAttended or tbxLastDate before moving on to enter another ddlGrade).
But I have been unable to figure out a way to accomplish this on the 'Gridview_RowDataBound',
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Dec 30, 2010
I have grid view containing check box column as one column,a drp down and button outside the grid..
for example drop down has two options like first and second,if i select first i want to change the name of the button to first and if i select second button name should be second,,and also i want to disable the checkboxes in gridview when button name is second..
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Jun 9, 2010
I want to filter my gridview using two parameters that come from Dropdownlists. I bind these drops with two linq queries and next I would like to filter my gridview with query that has two parameters that comes from selected values from those drops. Everything is inserted in UpdatePanel. Here is my code:
asp:UpdatePanel
ID="UpdatePanel1"
runat="server"
>
[Code]....
I don't know how to get selectedvalues from dropdownlist and pass them to Bind() function which binds grid view
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Jan 5, 2010
I have a gridview that is currently showing 20 lines per page. Each line has several fields in it, three of which are dropdownlists. These dropdownlists are populated with a SQLDataSource and then the selected value is bound to one of the gridview datalements.
The problem I'm running into is that the page is very slow to load. I believe this is because of the large dropdownlists (and possibly because there are roughly 60 of them, each of which is executing a SQL query to populate the list of available values). The file size that is being transmitted over the web is just over 1.25MB in size, again from the large amounts of data in the dropdownlists.
Is anyone aware of a technique by which I could only execute the query from the SQLDataSources that populate the dropdownlists' available values once and then reuse the results of that query to populate the relevant dropdowns? Ideally I would do this on the client side so it would also limit the amount of text being transmitted to the client browser.
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Jan 27, 2011
I have a gridview with 4 dropdownlists and 1 label in each row. Suppose , text fields of each dropdownlists are a,b,c and value fields are 1,2,3 respectively.
In each row,label text is the sum of value fields of selected text fields of 4 dropdownlist.
For example,If selected text of 4 dropdownlists of a row are-b,a,b,c.
Then the label text of that row will be 8.(value field of b=2,a=1,c=3 , so b+a+b+c=8)
Whenever the selected text of any dropdownlist changes,corresponding label field also will change.
How can we do this in asp.net with C#?
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Oct 15, 2010
On one of my pages I display a Gridview. This contains a list of questions generated by a SQLDataSource, with a dropdownlist on each row containing the answers for that question. The answer values can be different depending on the question, so I populate them in the RowDataBound event for the gridview, using question information.
As the list of questions is longer than the page I have placed the gridview within a Div which allows me to use scrollbars to navigate the gridview. I also use some methods to preserve the location of the last question answered - so that on answering a question, the gridview does not reset to show the first part of the gridview.
This works fine for IE7, which is what I have been using for the development, and which part of my customer base uses. However, the other part of my customer base uses IE6, which causes a problem.
When an IE6 user attempts to answer some questions, they run into issues. Should they scroll down the gridview, when they select a value from a dropdownlist (Effectively, when they answer a question), there is a postback and all of the visible (i.e. onscreen) dropdownlists appear to be cleared. However, on mousing over any of the dropdownlists, their value is then shown. On using either the scrollbar, or on using the mousewheel to scroll the gridview, all the dropdownlists are 'refreshed' and their values are shown.
At no point does the application appear to lose the data, it is just not showing it until there is a mouseover or the gridview is refreshed. Another odd aspect of this is that this does not apply to the first 5 rows of the Gridview. Any of these can be altered without there being this display issue. Should the gridview be scrolled enough to show some of the first 5 rows and some subsequent rows, only the subsequent rows will have this display issue.
I have tried various things to correct this - originally I called my retrievescrollposition method on the SelectedIndexChanged event of the dropdownlist, but have since moved it to Page_Load as the Else branch of if (!IsPostBack). I tried rebinding the DropDownlist in the SelectedIndexChanged event, but this only helped with the Question I was answering - the display of any other onscreen questions was still affected.
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Mar 11, 2010
I have got 2 Drop Down Lists on my Form and 1 GridView. I want GridView to display the data according to selection from the Drop Down Lists.
For Example, One Drop Down List contains Names and other contains Dates. Both the Drop Down Lists can post back. So if i select a name from 1st Drop Down list, the Grid View should show all the results according to that Name. Similarly if i select the Date from the other Drop Down List , the Grid View should show the results according to the dates. But i cant figure out as how to bind Grid View to respond to 2 Drop Down List.
BTW i am binding both the Drop Down Lists and the Grid View to the DataSource Objects, which is getting data from the database.
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Jan 12, 2010
I need to disable the edit command link if a record has links to other records within the tables.
I have a table that has worktype and that is captured when certain records are entered. So if a record exists with that value, then i want to disable the "Edit" link for that record within my gridview.
I want to provide them access to add more worktypes, but if they want to edit a worktype, i need to make sure its not used anywhere in the other tables, before they can edit it. For now atleast, because i will need to allow full editing and deletion functions for this table. how to do this or maybe suggestions on other things i can do to give them full functionality?
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Jul 8, 2010
I have a gridview that gets populated with database records. If a record's"Inactive" column is "1", I want to disable the checkbox as it is loading. I am trying
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Jul 6, 2010
hope you guys are doing well! I have a question and no answer yet how to do it. Right now i can have 1 dropdownlist and when i press on my search button its show the result of the query the user ask
but how to do it with two seperates dropdownlist ? isnt it with inner join ? also if the value is null what to do ?
here is my sample little code for a sample search
[Code]....
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Mar 31, 2011
I was just wondering if there isa way to disable GridView rows from being highlighted with the mouse when user clicks and drags over the row.
I was thinking this may be possible by disabling the onclick atttribute but I use this as each row is a hyperlink to another page.
Just trying to think of an alternative method; is it possible to change the color to be somehow transparent on the drag?
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Dec 18, 2010
I have a gridview with Templatefields checkbox, equipname,rate1,rate2 ,rate3,rate4.The equipname name field is a dropdownlist templaefield and I am populating it with data from datatable.
The equipname are A,B,C,D.
When I check the checkbox the corresponding equipname field of the checked row will be active and I select a equipname from the dropdownlist.
Rate1 is for Equipname 'A'
Rate2 is for Equipname 'B'
Rate3 is for equipname 'C'
Rate4 is for equipname 'D'
Now what I need is when I check the first row and select equipname 'A' only the
rate1 column of the first row should be active.
When I check the secondrow and selected equipname only the rate1 column of the second row should be active
and that of row1 should be inactive and so on.
I was able to do everything except that when I check a particular row and selected equipname 'A' allother fields (ie,rate2,rate3,rate4 ) becomes inactive but all otherrows of rate1 irrespective of the checked row becomes also active.how can I do this
I s there any way for getting that particular checked rowindex so as to compare it with
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Feb 1, 2010
I am using VS 2008 and C#. I have a nested datagrid attached to access database where date column is the PKey and takes system date.
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Apr 6, 2010
I have a gridview with a select link (Not auto created) One of my columns is a date column Another column is essentially a 'group code' For rows that have the same group code I want to disable or make the link button not visible for all but the most recent row. I wasn't sure how to go about doing this.
[Code]....
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Dec 13, 2010
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Sep 11, 2013
I have two dropdown lists that I am using to filter a gridview. I gridview is populating based on a query
select [AnnotationNumber],[AnnotationBy],[AnnotationType],[BusinessUnit] as Unit,[ErrorType],[ActualAgencyError],AnnotationComments,[sgkComments],[ActualAgencyError],Cust from vw_GridviewSource where Name = '"+@Name+"' and AnnotationDate = '"+@Stage+"'";
SqlCommand cmd = new SqlCommand(query);
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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Trakker.aspx.cs" Inherits="AnnoTracker.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
[CODE]..
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Oct 12, 2010
I want to display gridview column heading when mouse over to the particular column in the gridview.I am working in VisualStudio 2005 with MS.Net2.0 framework.I don't want to use ajax.
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Oct 29, 2010
[Code]....
Main Gridview[Code]....
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Mar 9, 2013
<asp:DropDownList ID="ddlday" Width="100px" runat="server" CssClass="iselect" Autopostback="True"
AppendDataBoundItems ="true">
<asp:ListItem Text="--Select--" Value="0" />
<asp:ListItem Text="Full" Value="1" Selected="True" />
<asp:ListItem Text="Half" Value="2" />
</asp:DropDownList>
I have a dropdown in gridview. I bind the gridview after not ispostback condition. Now if i select drodown lsit value "Full" from the first row of gridview i need all other rows of dropdown in gridview to be selected "full" programtically and after that if the user wants to change other row dropdown to "half" then he can change it.
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Jan 6, 2011
I have a gridview which is binded to a Sqldatasource. I would like to replace a column data field value to 'Not Applicable' if that column has got a value of 2 in database.
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May 7, 2015
There is a Gridview(say with 5 rows) in my web page with Delete button inside it.
I want that when I delete any row( say I deleted 5, 2, 3, 1) and then when I try to delete the last remaining row i.e., 4 then it should not get deleted.I want that remaining any last row(can be any) in Grid should not get delete.How to achieve that?
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Oct 12, 2010
want to display gridview column heading when mouse over to the particular column in the gridview.
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Jul 22, 2010
How to add a button at first column of gridview and get cell value in another column?
For example, add a button named it as "Click me". Once user clicks will get third column cell's (ID) value.
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Mar 4, 2011
No sense in showing a competely blank column. how to make a GridView column invisible if every cell in that column is empty?
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Jul 14, 2010
I have a gridview with 3 columns. In second column I want to display some text in 2 rows and then a gridview.
Here is my code:
[Code]....
The problem is my third row is displayed as a row under first column. How do I make it a separate column in my girdview. Not sure what is going wrong.
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