Is it possible to disable the function that lets you click on an object and link it to another?

[Clive321A]

basically im trying to stop the user from accidently clicking the Diagram and drawing a line, in our use case adding new connectors shouldnt be possible, but I cant see how to disable that functionality?

[stefanloerwald]

Hi @CliveBennett,

yes, this is possible! Just disable AllowFreeFloatingLinks on Links:

<Diagram>
   <Nodes>
      ...
   </Nodes>
   <Links AllowFreeFloatingLinks="false">
      ...
   </Links>
</Diagram>

Hope that helps,
Stefan

[Clive321A]

Thanks, yes I did try that option before, but it still lets me click and draw lines,

    My whole Diagram is this
    
    <Diagram @ref="masterDiagram">
    <Nodes>
        @{double nodex = 0;}
        @{double nodey = 0;}


        @foreach (var node in FamilyDiagramNode.RectangleNodes)
        {
           
            <RectangleNode Id="@node.NodeId" >
                @foreach (var q in node.Data)
                {
                    <div>@((MarkupString)q)</div>
                }
            </RectangleNode>

        }

    </Nodes>

    <Links AllowFreeFloatingLinks="false">
        @foreach (var lnk in FamilyDiagramNode.DiagramLinks)
        {
            <Link Source="lnk.Source" Target="lnk.Target" Arrow="Arrow.Target" Type="link_type" />

        }
    </Links>
    <NavigationSettings DisableZooming="false" />
    <AutoLayoutSettings Algorithm="SelectAutoScale.AutoScaleAlgorithm" @ref="autoLayout" />
    <OverviewSettings Position="Position.BottomRight" />

</Diagram>

[stefanloerwald]

I'm surprised it wouldn't disallow free-floating links, because the code looks fine to me:

Blazor.Diagrams/Diagram/Diagram.MouseInteraction.razor.cs

Line 436 in e6a7362

if (node == null && !link.Links.AllowFreeFloatingLinks)

Could you please clarify which clicks are performed by the user and where your expectation of the behavior differs from the observed behavior?

[stefanloerwald]

Not sure whether I understood your question right in the first place. If you want to disable user-generated links entirely, see here: #79 (comment)

[Clive321A]

Ah perfect, yes thats the exactly what I was after, thanks for your help.