Setting The "Selected" Property Of .NET ListItem (HTML Generic Control)?
Mar 8, 2011
For reasons outside my control I have a table containing input and select fields built using regular HTML with the runat="server" attribute (as opposed to standard ASP.NET controls). I am trying to set a value to be selected when the page is loaded based on values being passed from the Session (again, factor outside my control).
Setting the Selected property of the list item does nothing and doesn't select the item in question. How do I achieve this?
The code is basically this (names generic-ized):
HtmlSelect dropdownList = ((HtmlSelect)myTable.Rows[0].Cells[5].FindControl("DropdownList");
DataSet allListItems = this.GetDefaultListItems();
foreach (DataRow row in allListItems.Tables[0].Rows) [code]....
the Select portion doesn't work, although it gets executed on the proper item. Should this code be called in a specific event? I believe it's being called in Page_Load; should it be called in Pre_Render instead?
View 2 Replies
Similar Messages:
Sep 16, 2010
The following compile error occurs:
Parser Error Message: The 'Text' property of 'asp:ListItem' does not allow child objects.
Source Error:
Line 468: </asp:ListItem>
Line 469: <asp:ListItem Value="3">
Line 470: Search only continuing stories with at least <input runat="server" id="episodetb" Value="0" style="width:50px" />
Line 471: episodes
Line 472: </asp:ListItem>
When my original code is like this:
< asp:RadioButtonList ID="ContStoryRadioButtonList" DataTextFormatString=" {0}" CellPadding="2" runat="server">
<asp:ListItem Value="0">
Search singular and continuing stories
</asp:ListItem>
<asp:ListItem Value="1">
Search only singular stories
</asp:ListItem>
<asp:ListItem Value="2">
Search only continuing stories
</asp:ListItem>
<asp:ListItem Value="3">
Search only continuing stories with at least <input runat="server" id="episodetb" Value="0" style="width:50px" />
episodes
</asp:ListItem>
</asp:RadioButtonList >
View 4 Replies
Feb 22, 2011
I've been all over the Internet looking for an acceptable solution to this issue, but didn't find one, so hopefully I'll have more luck here. I've got a Html.DropDownList control in my application that pulls in a set of values from the database. That works just fine. However, I want to set the selected value in code, which has never worked correctly. This is, in my opinion, one of the worst implementations of Html helpers in MVC. Here's the culprit:
[Code]....
OK, it takes in a list of statuses and gets the text/value options set without a problem, but doesn't ever render the selected value on the option with a value (ID) of "5". I've stepped through the code as it is assigning these values, and it
does set the value of that option to select = true, but the rendered html doesn't reflect this. I recall something about this helper using the Model to set its selected value, but why will it not allow the value to be explicitly set? Even better, if for some reason explicitly setting this in code isn't going to work, why allow it as viable code, and just silently fail? I'm all for this coding by convention approach MVC has taken, but when the convention is explicitly overridden in code, the code should prevail, I would think.
View 1 Replies
May 20, 2010
I have the following code:
[Code]....
However, the wrong option is selected, and when I view page source, it renders like this:
[Code]....
Why is this occurring?
View 3 Replies
Sep 9, 2010
I am trying to create a User Control that accepts a generic List of CustomObject as a bindable property.
I'd like it to look a little somthing like this :
TabularReport.ascx
[Bindable (true)]
public IList<T> Source
{
get;
set;
}
protected void Page_Load(object sender, EventArgs e).........
View 1 Replies
Mar 17, 2011
I have a checkbox in a repeater control. How to get the User,Administrator,Security Admin as the checkbox Names ?
private string[] AvailableRoles = { "User", "Administrator", "Security Admin" };
Repeater_Roles.DataSource = AvailableRoles; Repeater_Roles.DataBind();
[code]....
View 3 Replies
Mar 29, 2011
I have a class called paycheckProperties where I have a property called GrossHoursWorked set like this:
[Code]....
In the form's codebehind I am first declaring an instance of this class:
[Code]....
then trying to set the value of the property to the value of a form control like this:
[Code]....
I'm not doing somethign correctly though because I'm getting an object reference is not set to an instance of an object error. What am I doing wrong?
View 2 Replies
Jan 25, 2010
I have created a user custom control, and what I would like to do is to pass it the text value from a label where I can carry out some other processing.
View 2 Replies
Apr 30, 2010
i am tryin to make an inherited custom label control.
what i want is i want to have a property for the label where one can select languages.
like <label id="lbl" language="">
so when the user gives "language" property he must be provided with an option of "EN" and "AR" like an intellisense.
View 5 Replies
Apr 15, 2010
I am trying to build a web user control and set some default values for its properties in the code-behind like this:
[DefaultValue(typeof(int), "50")]
public int Height { get; set; }
[DefaultValue(typeof(string), "string.Empty")]
public string FamilyName { get; set; }
[DefaultValue(typeof(Color), "Orange")]
public System.Drawing.Color ForeColor { get; set; }
When I add the user control to the page and call it without any properties:
<uc1:Usercontrol ID="uc" runat="server" />
the default values are not set and every property is 0 or null.
View 2 Replies
Oct 27, 2010
I need to validate a textbox to ensure the submit date is older than Today. I wanted to use a CompareValidator to do that, but unfortunately the following code doesn't work:
<asp:CompareValidator ID="cvtbDateExpiration" ControlToValidate="tbDateExpiration"
Operator="GreaterThan" Type="Date" ValueToCompare="<%= DateTime.Today %>"
ErrorMessage="Card has expired" runat="server" />
The compiler tells me that ValueToCompare="<%= DateTime.Today %>" is wrong: "This is not scriptlet. Will be output as plain text."
Is there a simple way to achieve this (without setting it using the Code Behind)?
View 1 Replies
Dec 10, 2010
I have an ASP.NET web application and at a certain point I do this:mycontrol.stringparameterforjscript = "document.getElementById('" + myotherparam + "').value = 'Hello'";The problem is that this thing does not work.s you can see this sets a javascript in some event of some tag. Well when the page is redered the problem is that my parameter look like this:
<textarea onfocus="document.getElementById('myvalue').value = 'Hello'">
View 2 Replies
Feb 24, 2010
Setting value in html control in code behind without making server control
<input type="text" name="txt" />
<%--Pleas note I don't want put runat=server here to get the control in code behind--%>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
Code behind
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
//If I want to initlize some value in input, how can I set here
}
}
protected void Button1_Click(object sender, EventArgs e)
{
Request["txt"] // Here I am getting the value of input
}
View 3 Replies
Mar 8, 2011
I am using jquery and c# to dynamically set a radiobuttonlist listitem to selected. I want to create a reset-type button to reset the radiobuttonlist selected item back to the first item in the list. jQuery/jsTree function currently reseting textbox and hidden field:
$('#ContentPlaceHolder1_hfNodeID').val('');
$('.txtPage').val('');
$('.rblContentTypesGetAll').val();
$('.contentPageForm').show(),
.rblContentTypesGetAll is the radiobuttonlist i want to reset (or select the top most listitem).
HTML of the form:
<asp:Panel ID="PagesForm" CssClass="contentPageForm" runat="server">
<asp:HiddenField ID="hfNodeID" runat="server" Value="" />
<table>
<tr>
<td>Page</td>
<td><asp:TextBox ID="txtPage" CssClass="txtPage" runat="server" /><span class="validate">*</span><br />
<asp:RequiredFieldValidator ID="rfvPage" runat="server" CssClass="validate" ControlToValidate="txtPage" Display="Dynamic" ErrorMessage="Page Name Required" ValidationGroup="page" /></td>
</tr>
<tr>
<td>Content Type</td>
<td>
<asp:RadioButtonList id="rblContentTypesGetAll" CssClass="rblContentTypesGetAll" OnLoad="rblContentTypesGetAll_Load" runat="server" >
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td> <asp:Button ID="Submit" runat="server" OnClick="PageSubmit_Click" Text="Save" ValidationGroup="page" />
<asp:Button ID="Cancel" runat="server" OnClick="Cancel_Click" Text="Cancel" />
</td>
</tr>
</table>
</asp:Panel>
View 2 Replies
Feb 2, 2010
I have a web user control (ascx) that exposes an "ID" property. What I want to do is set this property when the SelectedIndexChanged event fires in a gridview in the containing page. However, I can't seem to do it.... Here's my code:
protected void grdPhysicians_SelectedIndexChanged(object sender, EventArgs e)
{
physicians_certif1.mdID = grdPhysicians.SelectedDataKey.ToString();
mvData.SetActiveView(viewEdit);
panAdditional.Visible = true;
}
Physicians_certif1 is the user control. It seems the user control is loading before the SelectedIndexChanged event has a chance to set it's property.
View 2 Replies
Jul 22, 2010
I have 2 radiobuttonlist in a web forms, each contains of 4 ListItem. So there are 8 ListItems in total. It is initialised such that none of the ListItems is selected. I want to validate that at least one of the ListItems is selected when submit button is pressed. How to do it? i.e. at least 1 ListItem is selected, either from radiobuttonlist1 or radiobuttonlist2.
View 9 Replies
Jul 22, 2010
I have 2 radiobuttonlist in a web forms, each contains of 4 ListItem. So there are 8 ListItems in total. It is initialised such that none of the ListItems is selected. I want to validate that at least one of the ListItems is selected when submit button is pressed. How to do it? i.e. at least 1 ListItem is selected, either from radiobuttonlist1 or radiobuttonlist2.
View 4 Replies
Jun 16, 2010
I have a listbox on the parameter selection page.
The .css style for the listbox is defined as:
.listBoxStyle
{
font-family: Arial, Verdana, Helvetica;
font-size: 100%;
text-align: right;
}
As a default, there is an item selected on the listbox. But the colour appears blue of the item selected. I want to change the colour of the selected item.
View 7 Replies
Jan 5, 2011
I need to set a style property of an element to the value returned from a code-behind property. I have done this in the past, but it now seems everything I try fails. I get an error telling me that the literal is not formed correctly.These are some of the arrangements I have tried:
[Code]....
View 2 Replies
Jan 22, 2011
I have a DropDownList on my aspx page and wanted to add ListItem programatically. The item will start from 2 years ago to 1 year later (e.g. from 2009 to 2012) so if the year change, it will be automatic. I also want the current year to be selected by default.
In the code behind, I did this:
For i As Integer = (DateTime.Now.Year - 3) To (DateTime.Now.Year + 1)
DropDownList1.Items.Add(i.ToString())
Next
DropDownList1.SelectedItem.Text = DateTime.Now.Year
As result, I'm having the items in this order: 2011 (selected), 2009, 2010, 2011, 2012. The 2011 is duplicated (I wonder why). When I view the source page on Internet Explorer, I have this:
<option selected="selected" value="2011">2011</option>
<option value="2009">2009</option>
<option value="2010">2010</option>
<option value="2011">2011</option>
<option value="2012">2012</option>
View 2 Replies
Jul 8, 2010
I am creating a html table from a list collection. I am able to create the table, but I am not able to group the related items and add into a single table.
[Code]....
I have 3 items in the list collection, in which Student Name is same for 2 items.
Now I am getting 3 tables. I want to group the student Name and get a single table for unique student name.
This is my list collection:
Student ID Student Name Mark1
1 John 25
2 Mac 22
3 John 24
I am getting 3 tables now, but i would like to group the student Name and then get a single table for John having his marks and another table for Mac.
View 15 Replies
Jan 10, 2011
i'm attempting to set regular html checkbox's checked value based on if a master asp checkbox is checked or unchecked. The normal html checkbox is located in an asp repeater control that is populated in the page load event.
MAIN .ASPX PAGE
<asp:CheckBox ID="ChkMaster" runat="server" OnCheckedChanged="ChkMaster_CheckedChanged" AutoPostBack="true" />
[code]...
View 3 Replies
Mar 10, 2010
Line 44, Column 69: there is no attribute "AlternateText" You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).
This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.
How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the <embed> element to incorporate flash media in a Web page, see the FAQ item on valid flash. I can't figure this out.
View 2 Replies
Sep 26, 2010
I'm using VWD 2010 Express and have found that when I change a property like AutoPostBack from within the property window the corresponding tag (<asp:TextBox...>) was not updated with the property change to the tag.
Is there a setting that I can change in the VWD properties that will enable changes through the property window for a control to automatically update the HTML tag for that control?
View 6 Replies
Oct 1, 2010
I have a Sidemenu item in my ASP.NET application like below. There are two types of users in my application (Associates, Managers).When ever Associate Login then I have to disable Manager link. I am not able find visible property in codebehind since it is a HTML control. So need your support how to handle this
<ul>
<li><a href="Associate.aspx?val=Tests&index=0" id="lnkAssociates">Associate</a></li>
<li><a href="Manager.aspx id="lnkManager">Manager</a></li>
</ul>
View 2 Replies
