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VB.net Binding Controls to BindingSource with Formatting

Posted on 2014-02-06
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Last Modified: 2014-02-18
Hi,

I am creating a database application and have bound my form controls to the binding source.

One of the form controls is a DateTimePicker and the DataBinding is:
dtpickerDate.DataBindings.Add("Value", bsReading, "Reading_Date", True, DataSourceUpdateMode.OnValidation, DateTime.Today)

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How can I format the DataBinding so that when the value is sent back to the database it does not include the current timestamp or the current timestamp is set to 00:00:00.

I am using a DataAdapter to to insert/update the data.

Thanks, Greg
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Question by:spen_lang
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LVL 83

Expert Comment

by:CodeCruiser
ID: 39838458
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Author Comment

by:spen_lang
ID: 39839312
Hi,

Another formatting issue with a bound textbox, I would like to format the following as two decimal palces (rounded up).

How can I achieve this?

 txtUsage_TTM_CostDaily.DataBindings.Add("Text", bsUsage, "TTM_AvgDailyCost")

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LVL 83

Expert Comment

by:CodeCruiser
ID: 39839692
Again, you can use Validating or TextChange event of Textbox.
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Author Comment

by:spen_lang
ID: 39841274
Hi,

I have tried the following code:
Private Sub txtUsage_InServ_CostDaily_TextChanged(sender As Object, e As System.EventArgs) Handles txtUsage_InServ_CostDaily.TextChanged
        txtUsage_InServ_CostDaily.Text = Convert.ToInt32(txtUsage_InServ_CostDaily.Text)
    End Sub

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but I get an error, "Input string was not in a correct format."
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LVL 83

Expert Comment

by:CodeCruiser
ID: 39842681
What does the textbox contain when you this code runs?

Try

Private Sub txtUsage_InServ_CostDaily_TextChanged(sender As Object, e As System.EventArgs) Handles txtUsage_InServ_CostDaily.TextChanged
If Not String.IsNullOrEmpty(txtUsage_InServ_CostDaily.Text) Then
        txtUsage_InServ_CostDaily.Text = Convert.ToInt32(txtUsage_InServ_CostDaily.Text)
End If
    End Sub

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Accepted Solution

by:
spen_lang earned 0 total points
ID: 39843824
I have found out that you can setting the format when you bind the text box using
txtUsage_InServ_Cost.DataBindings.Add("Text", bsUsage, "RunningTotal_Cost", True, DataSourceUpdateMode.Never, vbNullString, "c5")

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Author Closing Comment

by:spen_lang
ID: 39866932
resolved issue myself
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