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SharePoint 2010 Working with Dates in CAML

, 10 Jul 2012
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Some of the challenges faced working with the Client Object Model.

Introduction

In this article we can explore some of the challenges faced working with the Client Object Model along with Date values.

Challenge

You are working on a Task list which contains creation date of different months. You need to search and find the tasks of the current month. How do we achieve this using CAML at the Client Object Model?

Data

Following is the data for the Task list:

Note: The test application contains a Create Data button to generate the list and data for you. Please ensure you are running on a test SharePoint Server.

Using the Application

You can download and run the attached source code.

The buttons perform the following:

  • Create Data: Creates the Task list with some monthly data
  • Show All Data: Shows all the items in the Task list in the grid below
  • Show this Month Data: Shows only the current month data using CAML query filtering

CAML Query

Following is the CAML query for specifying the dates:

query.ViewXml = @"<View>" +
"<Query>" +
    "<Where> <And>" +
    "<Geq>" +
        "<FieldRef Name='DueDate'/>" +
        "<Value Type='DateTime' IncludeTimeValue='FALSE'>" + startDateFx + "</Value>" +
    "</Geq>" +
    "<Leq>" +
        "<FieldRef Name='DueDate'/>" +
        "<Value Type='DateTime' IncludeTimeValue='FALSE'>" + endDatFx + "</Value>" +
    "</Leq>" +
    "</And> </Where>" +
"</Query>" +
"</View>";

Filters

We are using Geq (Greater than or Equal) and Leq (Less than or Equal) filters in the query.

Date Format

Please note that the dates are formatted as below:

string startDateFx = startDate.ToString("yyyy-MM-ddTHH:mm:ssZ");
string endDatFx = endDate.ToString("yyyy-MM-ddTHH:mm:ssZ");
Please note that in the Server Object Model, we can use the SPUtility.CreateISO8601DateTimeFromSystemDateTime method to achieve the same.

CAML Query Builder

You can validate your CAML queries using the following tool:

U2U CAML Query Builder: http://www.u2u.net/res/Tools/CamlQueryBuilder.aspx.

Executing the Application

On executing the application and clicking the buttons, we can see the results below:

The first task list displays all the items and the second task list displays only the items in the current month based on the Due Date column.

Summary

In this article we have explored the solution for handling date in the Client Object Model.  I hope the code could help you in a scenario involving Client Object Model. The attachment contains the code we have discussed.

References

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

Jean Paul V.A
Architect
United States United States
Jean Paul is a Microsoft MVP and Architect with 12+ years of experience. He is very much passionate in programming and his core skills are SharePoint, ASP.NET & C#.
 
In the academic side he do hold a BS in Computer Science & MBA. In the certification side he holds MCPD & MCTS spanning from .Net Fundamentals to SQL Server.
 
Most of the free time he will be doing technical activities like researching solutions, writing articles, resolving forum problems etc. He believes quality & satisfaction goes hand in hand.
 
You can find some of his work over here. He blogs at http://jeanpaulva.com
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Comments and Discussions

 
GeneralDateTime format Pinmemberw.a.g.i18-Dec-13 3:19 
GeneralQuestions about query [modified] PinmemberMember 83043589-Jul-12 23:37 
GeneralRe: Questions about query PinmemberJean Paul V.A10-Jul-12 3:35 

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