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SPQuery with datetime field

    Question

  • hi,

          i need to show created, created by and document name into gridview based on created date.

    for ex: I have two textbox one for "from date" and other for "to date" and a button. when user click on the button what are the documents available in document library between the two date. 
    i have tried this way,

    SPQuery oQuery = new SPQuery();
    oQuery.ViewFields = "<FieldRef Name='Created'/>" + "<FieldRef Name='FileLeafRef'/>" + "<FieldRef Name='Author'/>";
    DateTime strFromDate = Convert.ToDateTime(txtFromDate.Text);
    DateTime strToDate = Convert.ToDateTime(txtToDate.Text);
    oQuery.Query = "<Where><FieldRef Name='Created'><Value Type=\"DateTime\" StorageTZ='TRUE'>" + strFromDate + "</Value><FieldRef Name='Created'><Value Type=\"DateTime\" StorageTZ='TRUE'>" + strToDate + "</Value></Where>";
    SPListItemCollection items = splist.GetItems(oQuery);
    DataTable dt = items.GetDataTable();
    return dt;
    i am new to this technology.


    i don't know how to use the spquery for this scenario.

    please anyone can help me.......
    thanks in advace........


     

    Wednesday, July 30, 2008 6:35 AM

Answers

  •  you need to use AND condition and the "less than" and "greater than" operators to get the result:

    your query should look something like this :

    string createdBeforeQuery = "<Leq><FieldRef Name=\'Created\'/><Value Type=\'DateTime\'>" + strToDate.ToString("s") + "</Value></Leq>";  
     
    string createdAfterQuery = "<Geq><FieldRef Name=\'Created\'/><Value Type=\'DateTime\'>" + strFromDate.ToString("s") + "</Value></Geq>";  
     
     
    oQuery.Query = "<Where><And>" + createdBeforeQuery + createdAfterQuery + "</And></Where>"  
     

    at the start comment the oQuery.ViewFields line to be sure that there are no syntax mistakes in it.

    check if this helps..
    Wednesday, July 30, 2008 7:03 AM

All replies

  •  you need to use AND condition and the "less than" and "greater than" operators to get the result:

    your query should look something like this :

    string createdBeforeQuery = "<Leq><FieldRef Name=\'Created\'/><Value Type=\'DateTime\'>" + strToDate.ToString("s") + "</Value></Leq>";  
     
    string createdAfterQuery = "<Geq><FieldRef Name=\'Created\'/><Value Type=\'DateTime\'>" + strFromDate.ToString("s") + "</Value></Geq>";  
     
     
    oQuery.Query = "<Where><And>" + createdBeforeQuery + createdAfterQuery + "</And></Where>"  
     

    at the start comment the oQuery.ViewFields line to be sure that there are no syntax mistakes in it.

    check if this helps..
    Wednesday, July 30, 2008 7:03 AM
  • Hi,

    In order to make sure that your CAML Query works as it should, you can (and in my opinion, you should) test it with the U2U CAML Query Builder: http://www.u2u.info/SharePoint/U2U%20Community%20Tools/Forms/AllItems.aspx

    What this tool does, is generate queries for your automatically and of course lets you try your existing queries.

    If the query is successful in the Query Builder, it should be successfull in your code aswell.
    And as previous posted mentioned, try commenting out the viewfields line to make sure there's no errors in there.

    Regards,
    Tobias Zimmergren
    http://www.zimmergren.net
    Wednesday, July 30, 2008 7:10 AM
  • DateTime values have to be converted before you can use them in a CAML query. You can use the SPUtility.CreateISO8601DateTimeFromSystemDateTime() method for this.

    Also check this blog entry if you notice the time part of your DateTime values are ignored.
    Wednesday, July 30, 2008 10:16 AM
  • hi All,

       Thanks for your response.

    after executing the following code, i am getting "A field or property with the name 'Created' was not found on the selected data source" error.

    SPSite spsite = new SPSite(http://localhost);

    SPWeb spweb = spsite.OpenWeb();

    SPList splist = spweb.Lists["Shared Documents"];

    SPQuery oQuery = new SPQuery();

    DateTime strFromDate = Convert.ToDateTime(txtFromDate.Text);

    DateTime strToDate = Convert.ToDateTime(txtToDate.Text);

    string convertedTime = Microsoft.SharePoint.Utilities.SPUtility.CreateISO8601DateTimeFromSystemDateTime(strFromDate);

    string convertedTime1 = Microsoft.SharePoint.Utilities.SPUtility.CreateISO8601DateTimeFromSystemDateTime(strToDate);

    string Query = @" <Where><And>

    <Leq>

    <FieldRef Name='Created' />

    <Value Type='DateTime'>" + convertedTime1 + @"</Value>

    </Leq>

    <Geq>

    <FieldRef Name='Created' />

    <Value Type='DateTime'>" + convertedTime + @"</Value>

    </Geq>

    </And>

    </Where>";

    oQuery.Query = Query;

    SPListItemCollection items = splist.GetItems(oQuery);


    DataTable dt = items.GetDataTable();

    return dt;

    First Time it was executing fine.
    after that the Created column will be vanished.
    please help me...




     

    Thursday, July 31, 2008 4:13 AM
  • I don't see you define any ViewFields in your query. The returned SPListItems only contains fields if you explicitly ask for them.

    Like this:

    public static string BuildViewFieldsXml(params string[] fieldNames)  
    {  
       const string TEMPLATE = @"<FieldRef Name='{0:S}'/>";  
       StringBuilder sb = new StringBuilder();  
       foreach (string fieldName in fieldNames)  
       {  
           sb.AppendFormat(TEMPLATE, fieldName));  
       }  
       return sb.ToString();  
    }  
     
    // Example usage:  
    SPQuery query = new SPQuery();  
    query.ViewFields = BuildViewFieldsXml("Title", "Created", "SomeCustomField");  
    query.Query = ...;  // You know the drill  
     
    Friday, August 01, 2008 7:15 AM