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Type: Posts; User: sarfaraj4u

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  1. VS 2019 Re: failed to enable constrains.One or more rows contain value violating non-null,uni

    Hi Sir,

    Actually i want it to in Two DataTables but i don't know how to execute two different queries with no join.Please help me out sir.
  2. VS 2019 Re: failed to enable constrains.One or more rows contain value violating non-null,uni

    Hi Sir,

    Yes DataSet3 is my DataSet
  3. VS 2019 failed to enable constrains.One or more rows contain value violating non-null,unique,

    Hi Everyone:
    I am trying to print my voucher data but its giving above mentioned error.I am very new in this field and tried several time to solved but failed.If any one can help me i will be...
  4. VS 2019 Conversion from string"" to 'type' Double' is not valid

    Dear Gurus,

    I am very new in the coding field but recently i have started to work on a accounting voucher form.when i am trying to add the text data in the gridview its showing error in total...
  5. Re: System.NullReferenceException: 'Object reference not set to an instance of an obj

    I am posting the questions because you are genius and you are the best.And i am a learner and very much curious to learn the new lessons from you.Hope Everyone can understand this.
  6. Re: System.NullReferenceException: 'Object reference not set to an instance of an obj

    Hi Sir,

    Sorry for this, but to be very honest i am very new in this field and even though i have tried to read your codeBank thread but i couldn't understand it.I am just trying to save my...
  7. Re: System.NullReferenceException: 'Object reference not set to an instance of an obj

    Hi Sir,This ia my code but i think its wrong its giving error can you please help me to correct it Pls:
    Private Sub Btn_Save_Click(sender As Object, e As EventArgs) Handles Btn_Save.Click


    ...
  8. Re: System.NullReferenceException: 'Object reference not set to an instance of an obj

    Sorry Sir, I am very new in coding world.So please help me out . actually i dont know where to past these codes and what kind of changes requires to save/update the textbox and grid data in...
  9. Re: System.NullReferenceException: 'Object reference not set to an instance of an obj

    Hi Sir,
    I would like to know about the codes that after binding datatable with grid, what kind of changes will be there in my current code.Please Help me out.
  10. VS 2019 Re: Auto Fill Datagridview cell value with 0.00 if its null or empty

    Thank you so much its worked.
  11. System.NullReferenceException: 'Object reference not set to an instance of an object.

    Dear Sirs,

    I am working on a form called "JV" through Datagridview but i can not save it ,as its giving error"System.NullReferenceException: 'Object reference not set to an instance of an...
  12. VS 2019 Re: Auto Fill Datagridview cell value with 0.00 if its null or empty

    Sir,Can you please help me out to correct the code and which event i should use for this Sir?Pls
  13. VS 2019 Auto Fill Datagridview cell value with 0.00 if its null or empty

    Dear Sirs,

    Currently i am working on a project and getting some problem with Datagridview null cell value,Here is my code:Please help me out.

    [Private Sub DataGridView1_CellLeave(sender As...
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