Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,917 questions
I managed to fix it myself.
Sorry I didn't say earlier.
how to fix To prevent possible data loss before loading the designer, the following errors must be resolved: ?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 40%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
cdog78
0
Reputation points
|Here is the call stack:at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.CreateVariableKindUnknownException(XmlElementData
xmlElement, String name)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.XmlElementData.get_CodeDomElement()at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.EndElement(String
prefix, String name, String urn)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.Parse(XmlReader
reader)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.ParseXml(String
xmlStream, CodeStatementCollection statementCollection, String fileName, String
methodName)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.OnMethodPopulateStatements(Object
sender, EventArgs e)at
System.CodeDom.CodeMemberMethod.get_Statements()at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)at
System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost
host)|at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.CreateVariableKindUnknownException(XmlElementData
xmlElement, String name)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.XmlElementData.get_CodeDomElement()at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.EndElement(String
prefix, String name, String urn)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.Parse(XmlReader
reader)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.ParseXml(String
xmlStream, CodeStatementCollection statementCollection, String fileName, String
methodName)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.OnMethodPopulateStatements(Object
sender, EventArgs e)at
System.CodeDom.CodeMemberMethod.get_Statements()at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)at
System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost
host)|at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.CreateVariableKindUnknownException(XmlElementData
xmlElement, String name)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.XmlElementData.get_CodeDomElement()at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.EndElement(String
prefix, String name, String urn)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.Parse(XmlReader
reader)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.ParseXml(String
xmlStream, CodeStatementCollection statementCollection, String fileName, String
methodName)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.OnMethodPopulateStatements(Object
sender, EventArgs e)at
System.CodeDom.CodeMemberMethod.get_Statements()at
System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager
manager, CodeTypeDeclaration declaration)at
System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
manager)at
Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager
serializationManager)at
System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost
host)|
| -------- | -------- | -------- |
||
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 85%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJX%3C/text%3E%3C/svg%3E)
Jiale Xue - MSFT 48,686 Reputation points Microsoft Vendor2023-09-11T06:59:53.44+00:00 Hi @cdog78 , Welcome to Microsoft Q&A,
I could not exactly solve your problem with the stack you provided.
Please provide the steps where this error occurs.
Do you have minimal achievable code?
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1 answer
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cdog78 0 Reputation points
2023-09-26T15:05:33.86+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(48, 63%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERR%3C/text%3E%3C/svg%3E)
Roque, Rudy 21 Reputation points2025-01-14T19:32:00.5066667+00:00 I too get the following error. The report designer won't load
|To prevent possible data loss before loading the designer, the following errors
must be resolved:|To prevent possible data loss before loading the designer, the following errors
must be resolved:| | -------- | -------- | |To prevent possible data loss before loading the designer, the following errors
must be resolved: To prevent possible data loss before loading the designer, the following errors must be resolved:| -
Roque, Rudy 21 Reputation points
2025-01-14T19:32:25.9533333+00:00 How did you fix your problem?
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