Not able to set databinding for dropdown with another list datasource

Question

Hi
I have created one dataviewwebpart on the basis of list1.
Now I want to add one dropdown in one of the column which will display the values of another list.
So I added link datasource as list2 for another datasource.
I want to display versionID's  from another list for the item present in the row to this dropdown and when user click on icon I will pass selected version ID and ItemID(available in the row). So the user will able to see the selected version of the
seleted item in another list.
But I am not able to select versionID form list2 in "Change databinding" for the dropdown.
In select a datasource dropdown its not showing the linked datasource of List2.
What can I do ?
Is there any other solution ? Am I missing anything?

Answer 1

Hi,
I recommend to edit the dropdown control with the code below:
<SharePoint:DVDropDownList runat="server" id="ff5{$Pos}" DataSourceID="FilteredLookup" DataTextField="Title" DataValueField="Title" SelectedValue="{@MathTeachers}" __designer:bind="{ddwrt:DataBind('u',concat('ff5',$Pos),'SelectedValue','SelectedIndexChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@MathTeachers')}"/>
Please remember to change the id, DataSourceID, DataTextField, DataValueField and SelectedValue to the value in your page code.
More reference:
https://www.mriwm.com/Public/PamBlog/Lists/Posts/Post.aspx?ID=39
Best regards.
Thanks
Victoria Xia
TechNet Community Support