I have the following in vb.net
<asp:RadioButtonList ID="rbEdit5" runat="server" RepeatDirection="horizontal" >
<asp:ListItem Value="1" >Yes</asp:ListItem>
<asp:ListItem Value="0" >No</asp:ListItem>
</asp:RadioButtonList>
I need to programatically select one of the 2 listitems.
How do I programatically select say 'Yes' above in vb.net
This should work:
rbEditTop25.Items.FindByText("Yes").Selected = True
rbEditTop25.SelectedValue = "1"
Should do the trick!
For Each li As ListItem In rbEditTop25.Items
If li.Text= "Yes" Then
li.Selected = True
End If
Next
Related
I have a RadioButton control with 3 buttons.
I am retrieving a value from SharePoint list, and to select the RR control according to the value retrieved.
Which of the following is the correct method to use?
ResignationTypeRBList.SelectedValue = _request.ResignationType;
ResignationTypeRBList.SelectedItem = _request.ResignationType;
ResignationTypeRBList.SelectedIndex = _request.ResignationType;
<asp:RadioButtonList ID="ResignationTypeRBList" RepeatDirection="Horizontal" runat="server" CausesValidation="false">
<asp:ListItem Text="Resignation" Value="Resignation" Selected="True"></asp:ListItem>
<asp:ListItem Text="NPL" Value="NPL"></asp:ListItem>
<asp:ListItem Text="Others" Value="Others"></asp:ListItem>
</asp:RadioButtonList>
Thank you
If you are getting Value from Sharepoint list, then assign that to SelectedValue
ResignationTypeRBList.SelectedValue = "NPL";
The drop down I am using is statically bound.
<asp:DropDownList ID="StartTime" runat="server" BackColor="#FFFF80" Font-Names="Arial"
Font-Size="Small" style="text-align: center" Width="56%">
<asp:ListItem Value="12:00 AM"></asp:ListItem>
<asp:ListItem Value="12:30 AM"></asp:ListItem>
<asp:ListItem Value="1:00 AM"></asp:ListItem>
<asp:ListItem Value="1:30 AM"></asp:ListItem>
<asp:ListItem Value="2:00 AM"></asp:ListItem>
<asp:ListItem Value="2:30 AM"></asp:ListItem>
<asp:ListItem Value="3:00 AM"></asp:ListItem>
</asp:DropDownList>
Later I am retrieving the inserted value from DB and displaying it to the user from front end like:
ss.Append("FRE_PLANNED_START_DATE = '" & PlannedStartDate.Text & "',")
ss.Append("FRE_PLANNED_COMP_DATE = '" & CompDate.Text & "',")
Is it possible to show only the selected value and not the other drop down option to the user?
For example, while inserting the selected 12:00 AM and again front end should show only 12 and not display remaining drop down options.
You can hide one by setting its Enabled property to false:
StartTime.Items[0].Enabled = false;
You can loop it to disable all but one selected.
Wouldn't disabling DropDownList work as well?
How can I select multiple item in ListBox in VB.NET code.
Example:
I have item 1, 5, 8 - then I want to select those items in ListBox in page load
ListBoxSample item
Item “aa1” Value =1
Item “aa2” Value =2
Item “aa3” Value =3
Item “aa4” Value =4
Item “aa5” Value =5
Item “aa6” Value =6
Item “aa7” Value =7
Item “aa8” Value =8
You first need to ensure that multiple items can be selected(default is single-selection). Therefore use the SelectionMode-property:
<asp:ListBox id="listBox1" runat="server" SelectionMode="Multiple">
<asp:ListItem Value="1">aa1</asp:ListItem>
<asp:ListItem Value="2">aa2</asp:ListItem>
<asp:ListItem Value="3">aa3</asp:ListItem>
<asp:ListItem Value="4">aa4</asp:ListItem>
<asp:ListItem Value="5">aa5</asp:ListItem>
<asp:ListItem Value="6">aa6</asp:ListItem>
<asp:ListItem Value="7">aa7</asp:ListItem>
<asp:ListItem Value="8">aa8</asp:ListItem>
</asp:ListBox>
In an ASP.NET-ListBox there is no SelectedIndices property or something like that. So you need to loop them and set the ListItem's Selected property accordingly:
string[] selectedValues = { "1", "5", "8" }; // from session or whatever
foreach (ListItem item in listBox1.Items)
item.Selected = selectedValues.Contains(item.Value);
Remember to do that only if(!Page.IsPostBack) and not on every postback in Page_Load. Otherwise you're overwriting the user-changes and the SelectedIndexChanged-event won't fire.
To enable multi selection you need to set the selection mode to multiple in windows application
ListBox1.SelectionMode = SelectionMode.MultiSimple
ListBox1.SetSelected(1, True)
ListBox1.SetSelected(5, True)
ListBox1.SetSelected(8, True)
If it is ASP listBox then you can statically selected items as
<asp:ListBox id="drop1" rows="3" runat="server" AutoPostBack="True">
<asp:ListItem selected="true">Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem selected="true">Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
<asp:ListItem>Item 7</asp:ListItem>
<asp:ListItem selected="true">Item 8</asp:ListItem>
</asp:ListBox>
If you want to set it dynamically means you can use
drop1.SelectionMode = ListSelectionMode.Multiple
drop1.Items(0).Selected = True
drop1.Items(1).Selected = True
drop1.Items(2).Selected = True
Select multiple value in DropDownList using ASP.NET and C#. I tried it to select single value from drop down but unable to find multiple selection.
In that case you should use ListBox control instead of dropdown and Set the SelectionMode property to Multiple
<asp:ListBox runat="server" SelectionMode="Multiple" >
<asp:ListItem Text="test1"></asp:ListItem>
<asp:ListItem Text="test2"></asp:ListItem>
<asp:ListItem Text="test3"></asp:ListItem>
</asp:ListBox>
Take a look at the ListBox control to allow multi-select.
<asp:ListBox runat="server" ID="lblMultiSelect" SelectionMode="multiple">
<asp:ListItem Text="opt1" Value="opt1" />
<asp:ListItem Text="opt2" Value="opt2" />
<asp:ListItem Text="opt3" Value="opt3" />
</asp:ListBox>
in the code behind
foreach(ListItem listItem in lblMultiSelect.Items)
{
if (listItem.Selected)
{
var val = listItem.Value;
var txt = listItem.Text;
}
}
Dropdown list wont allows multiple item select in dropdown.
If you need , you can use listbox control..
ASP.NET List Box
For multiple selection dropdown list,cannot accomplish it directly using dropdown..Can be done in similar ways..
Either you have to use checkbox list or listbox (ajax inclusive)
http://www.codeproject.com/Articles/55184/MultiSelect-Dropdown-in-ASP-NET
http://social.msdn.microsoft.com/Forums/vstudio/en-US/54374df7-5a54-42bc-83b8-ad5994cb634d/multi-select-dropdownlist
http://www.dotnetfunda.com/articles/article1591-multiselect-dropdownlist-in-aspnet-using-csharp-40-.aspx
I have the following:
<asp:RadioButtonList ID="rbIsRep" runat="server" RepeatDirection="horizontal" >
<asp:ListItem Value="1" >Yes</asp:ListItem>
<asp:ListItem Value="0" >No</asp:ListItem>
</asp:RadioButtonList>
how do I check if the radiobuttonlist has any selected items?
Use the SelectedIndex proprty to check if anything is selected and the SelectedItem property to get the selected item's text:
If rbIsRep.SelectedIndex > - 1 Then
Dim selectedItemsText = "You selected: " & rbIsRep.SelectedItem.Text
End If
You can change the selection programmatically for example with the SelectedValue property.
rbIsRep.SelectedValue = "0"
or declaratively from aspx
<asp:RadioButtonList ID="rbIsRep" runat="server" RepeatDirection="horizontal" >
<asp:ListItem Value="1" >Yes</asp:ListItem>
<asp:ListItem Selected="True" Value="0" >No</asp:ListItem>
</asp:RadioButtonList>
One way to do it:
var hasSelection = yourRadioButtonList.SelectedIndex != -1;
And for VB.NET:
Dim hasSelection = yourRadioButtonList.SelectedIndex <> -1