Hi, I'd like to bind the MaxLength-Property of a TextBox to the MaxLength-Value of the original SQL-Server-Column. Is that possible?

I tried somthing like: this.TextBox1.DataBindings.Add(new System.Windows.Forms.Binding("MaxLength", this.bsContent, "???"));

But I don't know what to write instead of the "???" bsContent is a Bindingsource which contains a entity collection.

Thanks in advance!

Hi

You'll be able to access the maxlenght through something like:

yourEntity.Fields("yourFieldname").MaxLength

Then it cannot be as straight forward as you wish to do it, but it shouldn't be that difficult with a little code of yours.

Hey, thanks for your answer! "yourEntity" is an instance, isn't it?

using this:

this.TextBox1.DataBindings.Add(new Binding("Text", bsContent, "TxtNote", true)); The DataSource parameter is a constant.

if i use something like this.TextBox1.DataBindings.Add(new Binding("Maxlength", bsContent, "constant??", true)); i should be able to use a constant value too?

Because: if i used a value coming from the "myEntity" instance, the code would fail (null exception), if there is no instance. This is the case when there is an empty collection i want to add a new entity with bound controls. Then there is no initial entity,whose maxlength property i could use.

Is there no other way to get maxlength? In my understanding maxlength should be a static property of the entitytype, or do I miss something?

Uh-oh. my fault. Sorry for your time. I didn't really want to bind the maxlength value. It doesn't make sense to bind a value to a control which shows different data, but always the same type of data. I just wanted to set the value once in the code so it will fit even if the data schema is changed and LLBLGen created new code.

This will do it, i think: TextBox1.MaxLength = ((PartnerEntity)new PartnerEntity()).Fields["StrDescription"].MaxLength;

Not handy, but it works! I still think a static property would be more logical ;-)

Actually "PartnerFields.StrDescription" should give you access to the field outside of an instance. So

PartnerFields.StrDescription.MaxLength probably is what you want to do.

Ah yes! That's it! Thank you very much. Shame on me, i searched for hours and didn't find it