SharePoint 2010: How to Customize New Item Form to Take Parameters from Query String
Let's explain how to customize the SharePoint Item From to take parameters from Query String and set them as default values using SharePoint designer. Using this you can open a new Item From by providing parameters as a query string. For example, you can customize one item display form and taking a query String Parameter from that and view **New Item view for another list by providing default values using the Query String. **
Steps
Open the SharePoint designer and go to List and Libraries. Open the list that you want.
http://lh3.ggpht.com/_TufE6r6woBg/TOUIO-aKLyI/AAAAAAAAAbw/hqUJGik9Fyk/image_thumb%5B88%5D.png?imgmax=800
Click New and create a **New Insert **View by providing the name of the view.
http://lh5.ggpht.com/_TufE6r6woBg/TOUISjKdcVI/AAAAAAAAAZ8/1Oio-Y3I3oM/image_thumb%5B19%5D.png?imgmax=800
http://lh4.ggpht.com/_TufE6r6woBg/TOUIXYUF7wI/AAAAAAAAAaE/k6j4_gmblwM/image_thumb%5B18%5D.png?imgmax=800
The created one will come to the list. Click and open the view.
http://lh3.ggpht.com/_TufE6r6woBg/TOUIcg9_GzI/AAAAAAAAAaM/kEx21nZs8ps/image_thumb%5B29%5D.png?imgmax=800
The default New Item Screen will be loaded as follows.
http://lh4.ggpht.com/_TufE6r6woBg/TOUIgOCW02I/AAAAAAAAAaU/rqi0vijjje4/image_thumb%5B37%5D.png?imgmax=800
Delete the default list view and make that empty. You can delete the controls by selecting the area in the design view, If it's fully cleared you can view the following message from the designer.
http://lh4.ggpht.com/_TufE6r6woBg/TOUIhtNsN5I/AAAAAAAAAac/wArR6epa-TI/image_thumb%5B43%5D.png?imgmax=800
Go to SharePoint Controls and add a Custom List as you want.
http://lh5.ggpht.com/_TufE6r6woBg/TOUIkJrf6OI/AAAAAAAAAak/Oh4n3qwBNe8/image_thumb%5B50%5D.png?imgmax=800
Select the New Item Form and click OK to add the view.
http://lh3.ggpht.com/_TufE6r6woBg/TOUImKXNsGI/AAAAAAAAAas/xgVBcXOaaKk/image_thumb%5B51%5D.png?imgmax=800
In this example, let's set the comments by using a Query String Parameter. First, change the comments field’s controller to text box.
http://lh6.ggpht.com/_TufE6r6woBg/TOUIo0mx7-I/AAAAAAAAAa0/Vofk9OWnW9c/image_thumb%5B56%5D.png?imgmax=800
Add a Parameter field to get the comments from the Query String.
http://lh5.ggpht.com/_TufE6r6woBg/TOUIsh7B2yI/AAAAAAAAAa8/LfNtS5R0ZTg/image_thumb%5B61%5D.png?imgmax=800
Pass comments using Query String ID: com and store it into the variable param.
http://lh6.ggpht.com/_TufE6r6woBg/TOUIu5FdIpI/AAAAAAAAAbE/sWqepPXiku4/image_thumb%5B63%5D.png?imgmax=800
Select the comments text box and switch the view to code or split designer mode.
http://lh5.ggpht.com/_TufE6r6woBg/TOUIwweYb_I/AAAAAAAAAbM/DiSIQnmw078/image_thumb%5B68%5D.png?imgmax=800
http://lh6.ggpht.com/_TufE6r6woBg/TOUIygEKFZI/AAAAAAAAAbU/GJu62ciK3oo/image_thumb%5B74%5D.png?imgmax=800
In here go and change the text property to **{$param} **This will set the query string parameter to the text box.
http://lh5.ggpht.com/_TufE6r6woBg/TOUI0beuNvI/AAAAAAAAAbc/ImBynhqxpSs/image_thumb%5B81%5D.png?imgmax=800
You are done.
http://lh5.ggpht.com/_TufE6r6woBg/TOUI2GbTFBI/AAAAAAAAAbk/BQ6vESNk-Pc/image_thumb%5B87%5D.png?imgmax=800
