CODEWITHSUNDEEP
c#asp.net
Mingebag
Mingebag

Reputation: 758

RadComboBox pre selection

First of all what I want to do is to pre select a value in my RadComboBox ,and if this value is not selected something else is selected then change the visibility to of some specific fields hidden.

My problem is that I'm able to make my pre select but somehow I can not change the status of my visibility for my specific fields when this pre selected value has changed.

What I have tired is to do it with a standard event OnSelectedIndexChanged but some how this is not triggering why so ever.. I have also added AutoPostBack=true as well as ViewStateMode=Enabled"

First my field's

Here comes my preslect as well here I would like to trigger the visibility change 

  <div class="formRowDiv">
                        <asp:Label ID="Activitylbl" runat="server" Text="Activity" CssClass="formLabel" />
                        <telerik:RadComboBox ID="rcbActivity" CssClass="rowForm" ViewStateMode="Enabled" runat="server" Width="260px" EmptyMessage="- Activity -"
                            DataTextField="ActivityId" DataValueField="ActivityId" AutoPostBack="true" OnSelectedIndexChanged="rcbActivity_SelectedIndexChanged">
                        </telerik:RadComboBox>
                        <asp:RequiredFieldValidator runat="server" Display="Dynamic" ControlToValidate="rcbActivity"
                            ErrorMessage="Can not be empty" CssClass="rowFormValidation" />
                    </div>

What I want to hide: 

<div class="formRowDiv">
                    <asp:Label ID="ActivityDescription" runat="server" Text="ActivityDescription" CssClass="formLabel"    Visible="false"/>
                    <telerik:RadTextBox runat="server" ID="rtbActivityDescription" Wrap="true" Height="50" TextMode="MultiLine" AutoPostBack="true" CssClass="rowForm" ReadOnly="true" Visible="false" />
                </div>

How I do my pre selection :

In my databind method that is called in my Page_Load
I firrst loop and then do a pre select 

   foreach (Activity item in ctx.Activity.OrderBy(l =>l.Code))
        {
            rcbActivity.Items.Add(new RadComboBoxItem(item.FullActivity, item.ActivityId.ToString()));

            if (rcbActivity.Items.FindItemByValue("4") != null)
            {
                rcbActivity.SelectedIndex = rcbActivity.Items.IndexOf(rcbActivity.Items.FindItemByValue("4"));
                ActivityDescription.Visible = true;
                rtbActivityDescription.Visible = true;
                rtbActivityDescription.ReadOnly = false;
            }
        }

Here is how I would hide my Fields

protected void rcbActivity_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
    {

            ActivityDescription.Visible = true;
            rtbActivityDescription.Visible = true;
            rtbActivityDescription.ReadOnly = false;
    }

Upvotes: 0

Views: 704

Answers (1)

Vishweshwar Kapse
Vishweshwar Kapse

Reputation: 939

In case your controls are in an update panel then try removing it if the update panel is not so important and see if the changes u make to the controls in the server side are getting affected properly

Upvotes: 1

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