One task that I would like to make a lot easier, is to be able to toggle a control's visibility to off/false if a particular database field is null. Is there an expression I can put in the visibility='<%# %>' part of my code that could handle this?
IsDBNull(DataBinder.Eval(Container.DataItem, "expLeaflets")
I want to toggle a Textbox to be visible (true, false) contained within an InsertItemTemplate based on the data being Null/Empty.
It Works in the Item Template since it is calling the "select parameters", but once it is in the "insert parameters" on databinds, I am unable to get this to work.
<%# String.IsNullOrEmpty(Convert.ToString(Eval("qu_8")))?Convert.ToBoolean("false"):Convert.ToBoolean("true") %>
(works in Item Templates, but not in InsertItemTemplate to toggle a textbox to be visible or not visible). I am using C# in code behind.
How do I toggle the visiblity of a
<script> tag in the markup? Have the following javascript code in my master page:
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
try {
var pageTracker = _gat._getTracker("UA-108xxxx-2");
pageTracker._trackPageview();
} catch (err) { }
</script>
</body>
I have a web page where a div needs to be displayed under certain conditions. I'm using the following code to toggle the display and have verified that it works.
[Code]....
To call this javascript function, I'm using the following code in the code-behind for the page:
[Code]....
I traced the flow using the debugger. When the page load, txt_Cat_ID.Text = "2" correctly resolves to FALSE and the toggleOptionsDiv script is run with the 'hide' parameter. The page correctly hides the div.
When I click on the link that makes txt_CAT_ID.Text = "2" resolve to TRUE, the code executes the line where the toggleOptionsDiv script is run with the 'show' parameter. However, the div remains hidden.
The link that is clicked triggers an asynchronous post back and I'm not sure if that is the problem. How can I get the div to display on postback?
I have a tablix with subtotals at each level in the header and footer of each group. I know how to toggle the header textback to Hidden when expanding that group, but it then leaves a jagged appearance to he whole report. If I leave it the way it is, I have subtotals in both the header and the footer. What I'd like to do is to blank out the subtotal text in the header when expanded so only the footer is showing the subtotal, thereby retaining the header's textbox's color, borders, etc. and generally eliminating the jagged-looking right edge of the tablix.
I've tried accessing the Hidden property of the matching footer subtotal without success. I've even tried counting rows in the text-color expression of the header, but to no avail. Does anybody have any ideas on how to toggle the subtotal text in the header without creating a gaping empty space in that cell? I'd like to write something like,
=iif(ReportItems!sumFtrCustomerHours.Hidden,Sum(Fields!Hours.Value), "") but ReportItems only have one one property - Value.
I have a set of server side combo boxes in a table. Based on client events, I need them to appear or disappear. I've tried the following with no success:
document.getElementById("cboToothNumber").style.visibility = "hidden";
$("#cboToothNumber").hide()
I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
Using a class component, an Object data source and a formview I am successfully pulliing data from a SQL database. In some cases the rows contain one or more Null values and I would like them to be ignored completely. My simple code follows:-
<%# Eval("add_1") & ","%>
<%# Eval("Add_2") & ","%>
<%# Eval("Add_3") & ","%>
OUTPUT:-
Rose Cottage, 123 New Road, Margate,
I am using a FormView control. The allows me to update records in the database. However, when a database field is null I can not update the field on the form. It works fine when the field is not a null value. I am not using any code behind (C#) to bind the data or manipulate the data.
I have read that when there is a null value in the database thatthere is no record in the "dataset". Can anyone show me how to bind a value in the form when there is a null value previously.
cription" content="" /></asp:Content> <asp:Content ID="Content4" ContentPlaceHolderID="PageTitle" Runat="Server"> <asp:TextBox ID="TextTitle" runat="server" BorderStyle="None" Font-Bold="True" Font-Names="Arial" Font-Size="18px"></asp:TextBox></asp:Content> <asp:Content ID="Content2"[code]....
on my aspx I have the below DDL
<asp:DropDownList ID="ColorDDL" runat="server" DataSourceID="ColorObj"
DataTextField="Size" DataValueField="BustId" Width="150px"
AppendDataBoundItems="True">
<asp:ListItem Value="-1">(Optional)</asp:ListItem>
</asp:DropDownList>
If the user does not select an item I get an exception when i call the ObjectDataSource Method and DAL as below to insert into database
ProfileObj.InsertParameters["ColorId"].DefaultValue = ColorDDL.SelectedValue.ToString();
What I want to do is insert a database NULL instead.
I have a datalist bound to a sql source having two columns: Name and Description. The datalist contains a "Show Description" link as follows on clicking on which it calls the javascript which shows the description div.
[Code]....
The asp.net page source for itemtemplate of the datalist is as follows.The problem is that since the div id "Description" is applicable to multiple records, no matter I click on whichever "show details" link, the description of first record in the datalist is shwon and hidden since its the first div encountred by the javascript. In other words, I want a way to show/hide the description of each record in datalist indivigdually.
[Code]....
I am looking at building a grouping gridview, which I will know, will suit my needs. Therefore, I am not looking for a nested gridview. My answer is based upon an example I found at [URL]
However, what I am looking to do is to add a button to the group header row, which when pressed the rows within the group can either be shown or hidden.
how can i set the visibility of the "asp:ButtonField" inside a gridview
View 10 RepliesI have developed my application using Visual Web Developer 2008 express with Visual Basic code.
If I am working with 2 textboxs on a form, and I set the "Autopostback" to "true" for the first texbox then on the "changed" event, I can just add code to set the visibility to "true or "false" for the second textbox - it works fine. However, I do not seem to be able to figure out how to do the same thing when I am using a Dataview.
I have a table called "Customer" that contains 4 fields "CustomerName", "BasePrice", "LevelOfActivity", and "Discount".
My user enters information into this table using a Dataview form that displays the 4 fields.
When the user enters the value "L" in the field "LevelOfActivity", I would like to then set the visibility of the field "Discount" to "false" - (I want to hide the field as this customer should not get a discount). If the user enters the value "H" in the field "LevelOfActivity", I would like to then set the visibility of the field "Discount" to "true" - (I want to show the field so the user can enter the "Discount").
I have a checkbox in a formview in "edit" mode. I want the check to fire an event and toggle a different command imagebutton based on the state of the checkbox. It doesn't seem to be working.
Heres my code.
My Checkbox with oncheckedchanged event
[Code]....
My two image buttons one visible one not visible on intial state
[Code]....
My event subrouting that toggles the button inside of the Formview1
[Code]....
I am new to C# and I have a LinkButton inside a gridview. I have been trying to set the myLinkButton.Visible property true or false depending on a database entry.Here is the code behind I have been working on:
protected void gvBalance_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
[code]...
I want to hide 'image55div' div if [imagepath5] COLUMN is null how to achieve it!
below is code.
<div id="image55div" runat="server"> </div>
private void DisplayArticle(string id)
{
SqlDataAdapter da = new SqlDataAdapter("select * from activity Where id=" + id, con);
[Code].....
I have a formview that displays user info from a dropdownlist. One account may have many users, but one account Primary. I am trying to disable the Edit/Delete button in the formview if the selected ID is the account primary. The problem I get is this.
Step 1: page_load - the primary user is displayed by default, but the delete button is enabled - not right
Step 2: I use the dropdownlist to select another user (not the primary) - everything's fine
Step 3: I then select the Primary User, the Delete Button is disabled - perfect
Step 4: select another user, delete button still disabled - Not right.
[Code]....
1. As you can see my sqlSelect Parameters are bound to the DropDownList.SelectedValue, but is t seems like my if statement for comparing selecteduser to varAdminID doesn't work except once.
So to help debug, i added a label control that displays the selected userID, but on page load the label is blank. but it displays the first record on the list anyway. so if this is the reason for not disabling the delete button on page load then why later does it not reable the button when the user is not the primary, and the UserID is displayed on the label and it is not the primary userid?
I am working with a formview edititemtemplate. Currently in my page load, i have some stuff that would show or hide certain panels based on dropdownlist values. These dropdown values get binded during page load. I need to be able to change the values/dropdowns, without rebinding the old data, and updating the visibility of the panels based on predefined rules.
I have experimented with putting my formview.databind() in page load if isnotpostback, in prerender, in prerender if isnotpostback. I have tried my rules (ex if ddlState.selectedvalue = "DE" then pnlDelaware.visible = "true") in the page load, and the page render. I'm just not sure how to get the stars aligned here. The closest i have come is having the databind in the pageload if notispostback, and the rules in the prerender. However I get an error "dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items.
[Code]....
and im not getting the result i expected =
i have a grid view with all columns as TemplateFields( No BoundField). Based on certain condition i have to set Visibility of few columns false. Suppose when there is no column 'CaseList2' in the DataTable, then the second column of the grid (whose column index is 1 )should be invisible. But when the Gridview binds it gives error DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'CaseList2'
i googled it and found that
GridView1.Columns[1].Visible = false;
should work. But its not working actualy.
Code:
[Code]....
Codebehind:
[Code]....
I have some textbox and Dropdownlist in my page and bind it from database
BindDropDownList(DDL3, "Guidcenter", "Centername","id");
DDL3.Items.Insert(0, new ListItem(" please select ", "0"));
I have button in my page that when user click on it insert data into database
Here when users didn't select Item from dropdownlist it insert "please select" ( text that I define for DDL ) into database but I want when users didn't select Item from database it insert NULL in database....
protected void ImageButton2_Click1(object sender, ImageClickEventArgs e) {
string data = Server.UrlDecode(Request.QueryString["BehCode"]);
SqlCommand _cmd = new SqlCommand("insertinfo", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cn.Open();
[Code] ......
I have a details view with buttons in the footer. When the user clicks the edit button the calls the ChangeEditMode() method. I want to change the mode of the details view to edit mode which seems to work fine. It goes into edit mode with a text box. I also want it to set the visible property of the edit button to false and set the visible property of the update button to true. Then while still in edit mode the user can click the update button that will call the appropriate method to persist the changes.
I got the changemode() to change to edit but can't change the visible property of the buttons correctly. This is what I have so far. Can some one please tell me what I'm doing wrong?
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<%@ Page Title="" Language="VB" MasterPageFile="secureds_deals.master" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<script runat="server">
Protected DealId As Integer = 0
Protected DealName As String
Protected StartDate As Date
Protected ContractDate As Date
Protected ClosingDate As Date
Protected SubmitRole As String
Protected Status As String.......
URL.... When I wrote this code in other page with different SP It didn't worked correctly I change SP in new SP I used INSERT code instead of UPDATE now when users didn't select Item from ddl3 it insert 'please select' in table these are my code
protected void ImageButton2_Click1(object sender, ImageClickEventArgs e) {
SqlCommand _cmd = new SqlCommand("insertSreg", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cn.Open();
[code]....
