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I have a dropdownlist with data being bound dynamically this way at Page_Load:

<asp:DropDownList ID="ddlSet" DataTextField="Title" DataValueField="PKSetId" runat="server" 
AppendDataBoundItems="true" ng-model="SetId"></asp:DropDownList>

The rendered html is :

<select id="cpContent_ddlSet" ng-model="SetId">
<option value="? undefined:undefined ?"></option>
<option value="3">Test3</option>
</select>

The option Test3 should be selected by default when the page loads, but this isn't happening. I would have set $scope.SetId=3, but don't know this value before hand.

I see similar questions here but the dropdownlists are data bound the angular way, where you can easily set the selected item from $scope.

How to tackle this.

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    Mixing them is not good. Doing a quick search on selecteditem for dropdownlist shows different way of setting (selecting) an item in a DropDownList. My suggestion, set the selected item in Page_Load. For example: {list}.SelectedValue = theValue.ToString(). Commented Jul 2, 2015 at 8:22

2 Answers 2

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Either you build a server side ASP application or you build a client side Angular application, but don't mix the 2 technologies.

Let Angular do the whole frontend logic and rendering and the ASP will just provide the REST services.

See Angulars Select for an example how to preselect a dropdown value.

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You cannot do this in this way.

I suggest to add option at first place with such as:

<option value="" disabled ng-selected> Make your choice:
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