RE: [Connect C#] SetCExpressionValue replacement in DgnPlatformNet API?

If you can use C++, please try the function mdlCExpression_setValueForApp. Below is an example which turn off the select handle in PowerSelect tool's toolsetting dialogbox.

        CExprValue   value;
	value.type = CEXPR_TYPE_LONG;
	value.val.valLong = 1;
	mdlCExpression_setValueForApp (&value, NULL, "powerSelectInfo.prefs.disableControls",
	                               VISIBILITY_DIALOG_BOX, mdlSystem_findMdlDesc("PSELECT"));