How to resolve cannot add the same member twice to a serializationInfo object exception?
I'm getting an exception that "Cannot add the same member twice to a SerializationInfo object" while recording the actions of a custom control using CodedUI project. I have created a custom control and overridden the Description as below to split the property values.
class CustomControl : DataGridView
{
public CustomControl()
{
}
public int RowIndex
{
get
{
return this.CurrentCell.RowIndex;
}
}
public int RowCount
{
get
{
return this.RowCount;
}
}
protected override AccessibleObject CreateAccessibilityInstance()
{
return new CustomControlAccessibility(this);
}
}
class CustomControlAccessibility : Control.ControlAccessibleObject
{
CustomControl customGridView;
public CustomControlAccessibility(CustomControl grid):base(grid)
{
customGridView = grid;
}
public override string Description
{
get
{
return "CustomGridView" + "," + customGridView.RowIndex.ToString() + "," + customGridView.RowCount.ToString();
}
}
}
And implemented the codedui extension dll as per the below guidelines.
But I'm getting an exception that "Cannot add the same member twice to a SerializationInfo object" while generating the recordedmethod. How to resolve the issue or is there anything I'm missing?
Thanks,
Arulpriya
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Thank you for your feedback!
For us to investigate this further, we need to reproduce this scenario on our side, could you please provide your sample application and detailed reproduce steps here? That will help us provide the better response.
Thanks for your understanding and we look forward to hearing from you!
Thanks for your reply.
We got two sample projects from your address, CustomCodedUI project can build and run successfully, but when we opened ExCodedUI project, it said: ‘Class1.cs’ does not exist in the project directory, so we deleted this Class1.cs file and added the Base.cs file from project directory to ExCodedUI project, but there still has several error in this project, what I missed in it?
Additionally, we created a new Code UI Test project to record the start and run operations of your CustomCodedUI project, then generated test method in Code UI Test project, and the test method can be executed successfully. If we didn’t get the right point of your problem, could you please provide us more information(detailed reproduce step, etc.) to do the further investigation?
We appreciate your help with getting the repro project! While we are working on a repro on our side, could you try to rename public int RowCount so that it does not collide with the base class name?
Thank you, Tanya
I have tried your suggestion that renaming the properties name (i.e RowCount). But still I'm getting a different exception as "To test Windows Store apps, use the Coded UI Test project template for Windows Store apps under the Windows Store node." Is there anything I'm missing to provide the Extensible codedUI support for the control? Even I can't debug the extension source to know that where I'm missing. Please suggest a way to debug the source also.
Thanks,
Arulpriya
Hi AR,
Thanks for your reply.
Could you please provide your correct repro project and steps here? We need to repro this scenario on our side.
