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POusing variables in a dynamic linq query
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10396960
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2012-05-01T11:21:54.720
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2012-05-04T12:00:00.583
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2012-05-04T12:00:00.583
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I am using Linq to Entities and have added the using stmt of <code>using System.Linq.Dynamic;</code> My goal is to pass in the <code>whereClause</code> variable into the emailList query (see screen shot). Any thoughts? <img src="https://i.stack.imgur.com/dIZv1.png" alt="Error message details"> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ After using @Michael suggestion I got it to work with the following: HTML (notice I placed the field value in 'Value' attr.): <pre><code><asp:CheckBoxList ID="_checkboxGroups" runat="Server"> <asp:ListItem Text="Sid Dickens Lovers" Value="SidDickens_TF" Selected="False" /> <asp:ListItem Text="Rosamond Lover" Value="Rosamond_TF" Selected="false" /> <asp:ListItem Text="Wine and Cheese Lovers" Value="WineAndCheese_TF" Selected="false" /> <asp:ListItem Text="Good Clients" Value="IntDesign_TF" Selected="false" /> <asp:ListItem Text="Vendors" Value="Vendor_TF" Selected="false" /> </asp:CheckBoxList> </code></pre> Code behind: <pre><code>// determine # of items in asp:CheckBoxList var groupCount = _checkboxGroups.Items.Count; var conditions = new List<string>(); for (int i = 0; i < groupCount; i++) { if (_checkboxGroups.Items[i].Selected) { conditions.Add(_checkboxGroups.Items[i].Value.ToString() + " == true"); } } string whereClause = string.Join(" OR ", conditions.ToArray()); ElanEntities3 db = new ElanEntities3(); var emailList = (from c in db.vEmailListViewforSendings orderby c.Email select c).AsQueryable(); emailList = emailList.Where(whereClause); _listViewClients.DataSource = emailList; </code></pre>
Tags
<c#><linq><dynamic-linq>
Title
using variables in a dynamic linq query
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