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PODropDown selected value doesn't work with int type values
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  1. PODropDown selected value doesn't work with int type values
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    copied!<p>I have a class in my asp.net project like this:</p> <pre><code> public class CenterInfo { public int ID { get; set; } public string CenterName { get; set; } } </code></pre> <p>and I have a dropdownlist ( contains <code>DataTextField="CenterName" DataValueField="ID"</code>) where has a list of CenterInfo as datasource,I tried to select an item in dropdownlist in code behind in this way:</p> <pre><code>CenterDropDownList.SelectedValue = Student.CenterID.ToString(); </code></pre> <p>but it doesn't work, because dropdown values are in int type actually, and selected value is in string type. what can I do for that?</p> <p>my aspx:</p> <pre><code> &lt;asp:DropDownList ID="CenterNameDropDownList" runat="server" CssClass="requestdropdownlist" OnSelectedIndexChanged="CenterNameDropDownList_SelectedIndexChanged" DataTextField="CenterName" DataValueField="ID" &gt;&lt;/asp:DropDownList&gt; </code></pre> <p>and cs:</p> <pre><code> CenterNameDropDownList.DataSource = Data.CenterDB.GetCenterByCityId(city.ID); CenterNameDropDownList.DataBind(); </code></pre> <p>and related rendered html :</p> <pre><code> &lt;select name="ctl00$ContentsPlaceHolder$CenterNameDropDownList" id="ContentsPlaceHolder_CenterNameDropDownList" disabled="disabled" class="aspNetDisabled requestdropdownlist"&gt; &lt;option selected="selected" value="1"&gt;سمنان : شهید عاملو&lt;/option&gt; &lt;option value="2"&gt;سمنان : شهید مطهری&lt;/option&gt; &lt;option value="3"&gt;سمنان : حکیم الهی&lt;/option&gt; &lt;option value="4"&gt;سمنان : شهید قندی&lt;/option&gt; &lt;option value="9"&gt;سمنان : جهادیه&lt;/option&gt; &lt;option value="47"&gt;سمنان : اعلاء&lt;/option&gt; &lt;option value="48"&gt;سمنان : اروانه&lt;/option&gt; &lt;option value="49"&gt;سمنان : بیابانک&lt;/option&gt; &lt;option value="50"&gt;سمنان : ایج&lt;/option&gt; &lt;option value="51"&gt;سمنان : خیرآباد&lt;/option&gt; &lt;option value="52"&gt;سمنان : لاسجرد&lt;/option&gt; &lt;option value="53"&gt;سمنان : پایگاه هوایی&lt;/option&gt; &lt;option value="54"&gt;سمنان : شهرک صنعتی سمنان&lt;/option&gt; &lt;option value="56"&gt;سمنان : آبخوری Wll&lt;/option&gt; &lt;option value="57"&gt;سمنان : اعلا Wll&lt;/option&gt; &lt;option value="58"&gt;سمنان : اسدآباد Wll&lt;/option&gt; &lt;option value="59"&gt;سمنان : دلازیان Wll&lt;/option&gt; &lt;option value="60"&gt;سمنان : دزهير Wll&lt;/option&gt; &lt;option value="61"&gt;سمنان : جام Wll&lt;/option&gt; &lt;option value="62"&gt;سمنان : خیرآباد Wll&lt;/option&gt; &lt;option value="63"&gt;سمنان : مومن آباد Wll&lt;/option&gt; &lt;option value="64"&gt;سمنان : افتر&lt;/option&gt; &lt;option value="65"&gt;سمنان : مومن اباد&lt;/option&gt; &lt;option value="175"&gt;سمنان : مهر 1 سمنان&lt;/option&gt; &lt;option value="177"&gt;سمنان : پشتیبانی سیستم جامع&lt;/option&gt; &lt;option value="182"&gt;سمنان : آزمایشی&lt;/option&gt; &lt;option value="191"&gt;سمنان : سمنان - مرکز مهر 2&lt;/option&gt; &lt;/select&gt; </code></pre>
 

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