GetPattern Null check supporting columns without Datagridowner (#8477)

harshit7962 · web-flow · commit 1e0d0ddfdc84 · 2024-01-29T16:33:22.000+05:30
* adding Null Check

* Code Formatting
diff --git a/src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Automation/Peers/DataGridCellItemAutomationPeer.cs b/src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Automation/Peers/DataGridCellItemAutomationPeer.cs
@@ -255,7 +255,7 @@ public override object GetPattern(PatternInterface patternInterface)
             switch (patternInterface)
             {
                 case PatternInterface.Invoke:
-                    if (!this.OwningDataGrid.IsReadOnly && !_column.IsReadOnly)
+                    if (this.OwningDataGrid != null && !this.OwningDataGrid.IsReadOnly && !_column.IsReadOnly)
                     {
                         return this;
                     }

Original file line number	Diff line number	Diff line change
`@@ -255,7 +255,7 @@ public override object GetPattern(PatternInterface patternInterface)`
`255`	`255`	`switch (patternInterface)`
`256`	`256`	`{`
`257`	`257`	`case PatternInterface.Invoke:`
`258`		`- if (!this.OwningDataGrid.IsReadOnly && !_column.IsReadOnly)`
	`258`	`+ if (this.OwningDataGrid != null && !this.OwningDataGrid.IsReadOnly && !_column.IsReadOnly)`
`259`	`259`	`{`
`260`	`260`	`return this;`
`261`	`261`	`}`