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POHow to exclude already existing items from dropdownlist? The values are populated based on some condition in xml
 

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  1. POHow to exclude already existing items from dropdownlist? The values are populated based on some condition in xml
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    <p>In my web application project I have a LinkButton and when clicking it a popup page AddControlsPopup.aspx will come . </p> <p>On this page I have to fill ddlValues Dropdownlist from xml with some condition.</p> <p>The First Dropdownlist is ddlValues. Initially the dropdownlist is populated with all data. </p> <p>The second Dropdownlist is ddlControlType</p> <p>Third Dropdownlist is ddlConditionControl.</p> <p>In the popup page there exists a button to add the controls , need to select values from these 3 dropdownlist.</p> <p>After clicking the Button, the 3 dropdownlist values added to Xml Controls section.</p> <p>In the page there exist a button to add the controls. It will be saved to xml.</p> <p>This is the process.</p> <p><strong>My doubt is that after adding all the combination of ControlValue, ControlType and ConditionControl, I have to exclude the ControlValue from the First dropdownlist ddlValues</strong></p> <p>Pls help </p> <p>I have an XML File with the following data.</p> <pre><code>&lt; ControlSet&gt; &lt; Control&gt; &lt; Values&gt; &lt; ValueID&gt;1&lt; /ValueID&gt; &lt; ValueName&gt; ABC &lt; /ValueName&gt; &lt; /Values&gt; &lt; Values&gt; &lt; ValueID&gt;2&lt; /ValueID&gt; &lt; ValueName&gt; DEF&lt; /ValueName&gt; &lt; /Values&gt; &lt; Values&gt; &lt; ValueID&gt;3&lt; /ValueID&gt; &lt; ValueName&gt; XYZ&lt; /ValueName&gt; &lt; /Values&gt; &lt; Controls&gt; &lt; ControlValues&gt; &lt; ValueID&gt;1 &lt;/ValueID&gt; &lt; ControlTypeID&gt;1 &lt; /ControlTypeID&gt; &lt; ConditonControlID&gt; 1 &lt; /ConditionControlID&gt; &lt; /ControlValues&gt; &lt; ControlValues&gt; &lt; ValueID&gt;1 &lt;/ValueID&gt; &lt; ControlTypeID&gt;1 &lt; /ControlTypeID&gt; &lt; ConditonControlID&gt; 2 &lt; /ConditionControlID&gt; &lt; /ControlValues&gt; &lt; ControlValues&gt; &lt; ValueID&gt;1 &lt;/ValueID&gt; &lt; ControlTypeID&gt;2 &lt; /ControlTypeID&gt; &lt; ConditonControlID&gt; 1 &lt; /ConditionControlID&gt; &lt; /ControlValues&gt; </code></pre>
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      1. POHow to exclude already existing items from dropdownlist? The values are populated based on some condition in xml
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