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QuestionDisable a textbox inside Repeater control when any of the DropDownList values also inside Repeater, is selected Pin
Ihechi Alozie2-Mar-23 12:17
Ihechi Alozie2-Mar-23 12:17 
I have a textbox and dropdownlist controls inside a repeater control.

The textbox is called txt_watersizes and the dropdownlist is called ddlWater.

The dropdownlist currently has three values although this could increase. The dropdownlist values are dynamically populated from the database.

To keep things simple, I have manually added values to the dropdownlist.

This is our back office feature and is handled only by an admin.

The way it works is that if an admin wishes to create a record, s/he selects a value from the dropdownlist. If the value s/he wishes to select is not on the dropdown, s/he enters the value into the textbox. The value is then added to the lookup table storing the dropdownlist values while the ID of or value of the dropdownlist is added to the main table. This works great.

We would like to disable the textbox when the admin selects a value from the dropdownlist to avoid having to enter the same value in the textbox as well.

How do I do this?

I know I could handle this on codebehind using selectedIndexChanged method but we would use JavaScript instead.

I do have a JavaScript but for some reason, it does not disable the textbox when a value is selected from the dropdownlist.

Thank you in advance.

<script type="text/javascript">
    $(function () {
        $("[id*=ddlWater]").change(function () {
            var row = $(this).closest("tr");
            var value = $(this).val();
            if (value == "" ) {
                row.find("[id*=txt_watersizes]").attr("disabled", "true");
            } else {
                row.find("[id*=txt_watersizes]").removeAttr("disabled");
            }
        });
    });
</script>

     <td>
       <asp:DropDownList ID="ddlWater" AppendDataBoundItems="true" runat="server">
       <asp:ListItem Text="29.9" Value="1" />
       <asp:ListItem Text="2.98" Value="2" />
       <asp:ListItem Text="0.33" Value="3" />      
       </asp:DropDownList>
     </td>
     <td>
        <asp:TextBox ID="txt_watersizes" runat="server"></asp:TextBox>
    </td>

AnswerRe: Disable a textbox inside Repeater control when any of the DropDownList values also inside Repeater, is selected Pin
Richard Deeming2-Mar-23 21:27
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QuestionHow to replace the select of my html Pin
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QuestionHow to show or hide a div with only class without ID Pin
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Questionwant to help in javascript code Pin
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QuestionHow do I make an Element slide-in, after user selects choice from drop-down, then it slides out. Pin
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