[Solved] Text Value of Hidden ComboBox

[bradley baker]

I have a ComboBox that is hidden and I want to get the Text value of it not the SelectedValue.  RadComboBox1.Text will work if the combobox ISNT hidden but once you hide it the value is then blank.

ComboBox0 Passes the selected value to ComboBox1 (hidden) I then want to store the text of this combobox in a database now.

[Shinu]

Hello Bradley Baker,

I am not sure about the scenario that you are trying. I tried accessing the Text property of RadComboBox and it is working fine in my end even if the combo is hidden (I am using RadControls for ASP.NET Ajax version 2009, 3, 1103, 35 ).

Here is the code that I tried:
ASPX:

<telerik:RadComboBox ID="RadComboBox1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="RadComboBox1_SelectedIndexChanged">
    <Items>
        <telerik:RadComboBoxItem runat="server" Text="RadComboBoxItem1" Value="RadComboBoxItem1">
        </telerik:RadComboBoxItem>
         . . .
    </Items>
</telerik:RadComboBox>

C#:

    protected void Button1_Click(object sender, EventArgs e)
    {
        RadComboBox1.Visible = false;
        RadComboBox1.SelectedValue = RadComboBox1.SelectedValue;
        Response.Write(RadComboBox1.SelectedValue);
        Response.Write(RadComboBox1.SelectedItem.Text);
        Response.Write(RadComboBox1.Text);
    }

Have you tried "RadComboBox1.SelectedItem.Text" ?

-Shinu.

[bradley baker]

RadComboBox2.SelectedItem.Text

The causes an error on the page when you make the postback "Object ref not set to an instance of an object"

            <tr>
                <td width="100px">
                    <asp:Label ID="Label2" runat="server" Text="Reason"></asp:Label>
                </td>
                <td>
                    <telerik:RadComboBox ID="RadComboBox1" Runat="server" AutoPostBack="true"
                        DataSourceID="COReasonDDSQL" DataTextField="coreason_name" OnSelectedIndexChanged="RadComboBox1_SelectedIndexChanged"
                        DataValueField="coreason_id" MarkFirstMatch="True" AllowCustomText="true" EmptyMessage="Select One">
                    </telerik:RadComboBox>
                    <telerik:RadComboBox ID="RadComboBox2" Runat="server" Visible="false"
                        DataSourceID="PlnrSQL" DataTextField="Column1"
                        DataValueField="PBPBC" MarkFirstMatch="True" AllowCustomText="True"
                        EmptyMessage="Select One">
                    </telerik:RadComboBox>
                    <telerik:RadComboBox ID="RadComboBox3" Runat="server" Visible="false"
                        DataSourceID="COReasonDDSQL" DataTextField="coreason_start"
                        DataValueField="coreason_id" MarkFirstMatch="True" AllowCustomText="True"
                        EmptyMessage="Select One">
                    </telerik:RadComboBox>
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
                        ErrorMessage="Required" ControlToValidate="RadComboBox1"></asp:RequiredFieldValidator>
                </td>
            </tr>

Imports Telerik.Web.UI

Partial Class sales_change_order_co_add
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        CORequest.Insert()
    End Sub

    Protected Sub RadComboBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As RadComboBoxSelectedIndexChangedEventArgs)
        If RadComboBox1.SelectedItem IsNot Nothing Then
            RadComboBox3.SelectedValue = RadComboBox1.SelectedValue
        End If
    End Sub


    Protected Sub CORequest_Inserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs) Handles CORequest.Inserting

        Dim PlannerBox As String = RadComboBox2.Text
        Dim Planner As String
        Dim PlannerSplit As String()
        Dim WhereAt As String = RadComboBox3.Text

        PlannerSplit = PlannerBox.Split("@")
        Planner = String.Concat("CORP\", PlannerSplit(0).ToLower)


        e.Command.Parameters("@DMD").Value = RadTextBox1.Text
        e.Command.Parameters("@REQUESTOR").Value = Context.User.Identity.Name.ToString()
        e.Command.Parameters("@REASON").Value = RadComboBox1.SelectedValue
        e.Command.Parameters("@SHIPTO").Value = RadTextBox2.Text + ""
        e.Command.Parameters("@LINENO").Value = RadTextBox3.Text
        e.Command.Parameters("@QTY").Value = RadTextBox4.Text
        e.Command.Parameters("@PARTNO").Value = RadTextBox5.Text + ""
        e.Command.Parameters("@UNITPRICE").Value = RadTextBox6.Text
        e.Command.Parameters("@NOTES").Value = RadTextBox7.Text + ""
        e.Command.Parameters("@DOLVALUE").Value = RadTextBox8.Text
        e.Command.Parameters("@BOOKDATE").Value = Now()
        e.Command.Parameters("@PROJECTNAME").Value = RadTextBox9.Text + ""
        e.Command.Parameters("@NOTES2").Value = RadTextBox10.Text + ""
        e.Command.Parameters("@PLANER").Value = Planner
        e.Command.Parameters("@WHEREAT").Value = WhereAt
        Button1.Visible = False
        CompletedLabel.Visible = True
    End Sub

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        RadTextBox1.Text = Int(Request.QueryString("dmd"))
        RadTextBox3.Text = Int(Request.QueryString("line"))
        RadTextBox5.Text = Request.QueryString("prod") + ""
        RadTextBox4.Text = Int(Request.QueryString("qty"))
        RadTextBox6.Text = Request.QueryString("net")
        RadComboBox2.SelectedValue = Request.QueryString("plnr")

    End Sub
End Class

Does your code work if you set "Visible='false'" on the aspx page first?  Yes I am also using Q3 dll's.

[bradley baker]

Anything?

[Veselin Vasilev]

Hello bradley baker,

Note that setting the Visibility=False to a server control does not render it at all on the page. So, even if you make some changes with the control on the server - getting a property (e.g. Text) will return the above error.

You can try hiding the control with style="display:none" in the combo's declaration.

Greetings,
Veselin Vasilev
the Telerik team

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