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DataSet Haschanges returning false
Message
From
30/10/2012 10:06:40
 
General information
Forum:
ASP.NET
Category:
Forms
Environment versions
Environment:
C# 2.0
OS:
Windows XP SP2
Network:
Windows 2000 Server
Database:
MS SQL Server
Miscellaneous
Thread ID:
01554541
Message ID:
01556071
Views:
47
>I thought the whole point of DataBinding was to automate this sort of behaviour.

It is. I don't know why you'd have to do this if you've properly databound those controls. I thought the problem you initially wrote about was because you programmatically changed the value in a control (say, a TextBox.Text) and you needed to use the .WriteValue() for that reason, for one or two controls perhaps.

If you're regularly clearing the values in all your controls by the below methodology (setting all TextBox.Text = ""), then your problem is actually that you shouldn't be doing it that way. Those TextBoxes are bound to a DataTable ... you should be clearing the data in the DataTable row and those empty values will then be shown in your TextBoxes.

~~Bonnie



>Hi all, just to update you on what I ended up coding ( please advise if there's a cleaner way )
>
>
>// This method clears the controls values.
>
>this.txtFirstName.Text = "";
>this.txtMiddleName.Text = "";
>// And so on for the other controls.
>
>// Loop to WriteValues to dataset
>
>for(int i = 0 ; i < this.Controls.Count ; i++)
>    if(this.Controls[i].DataBindings.Count > 0)
>        for(int j = 0 ; j < this.Controls[i].DataBindings.Count  ; j++)
>            this.Controls[i].DataBindings[j].WriteValue();
>
>
>I thought the whole point of DataBinding was to automate this sort of behaviour. Once again, thanks for your help.
Bonnie Berent DeWitt
NET/C# MVP since 2003

http://geek-goddess-bonnie.blogspot.com
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