<divclass=CToolTipid="tt3208"><divclass=CVariable>Defines the color to be used for the coloring valid connection previews. </div></div><divclass=CToolTipid="tt3209"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphView.prototype.validate = function(</td><tdclass=PParameternowrap>cell</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>First validates all bounds and then validates all points recursively on all visible cells starting at the given cell. </div></div><divclass=CToolTipid="tt3210"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphView.prototype.validateBackground = function()</td></tr></table></blockquote>Validates the background image.</div></div><divclass=CToolTipid="tt3211"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphView.prototype.validateBounds = function(</td><tdclass=PParameternowrap>parentState,</td></tr><tr><td></td><tdclass=PParameternowrap>cell</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>Validates the bounds of the given parent’s child using the given parent state as the origin for the child. </div></div><divclass=CToolTipid="tt3212"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraph.prototype.validateCell = function(</td><tdclass=PParameternowrap>cell,</td></tr><tr><td></td><tdclass=PParameternowrap>context</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>Hook method for subclassers to return an error message for the given cell and validation context. </div></div><divclass=CToolTipid="tt3213"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxConnectionHandler.prototype.validateConnection = function(</td><tdclass=PParameternowrap>source,</td></tr><tr><td></td><tdclass=PParameternowrap>target</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>Returns the error message or an empty string if the connection for the given source target pair is not valid. </div></div><divclass=CToolTipid="tt3214"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxEdgeHandler.prototype.validateConnection = function(</td><tdclass=PParameternowrap>source,</td></tr><tr><td></td><tdclass=PParameternowrap>target</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>Returns the error message or an empty string if the connection for the given source, target pair is not valid. </div></div><divclass=CToolTipid="tt3215"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraph.prototype.validateEdge = function(</td><tdclass=PParameternowrap>edge,</td></tr><tr><td></td><tdclass=PParameternowrap>source,</td></tr><tr><td></td><tdclass=PParameternowrap>target</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>Hook method for subclassers to return an error message for the given edge and terminals. </div></div><divclass=CToolTipid="tt3216"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0