gridview field length limitation

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Hello, I am a total noob and am just trying to cobble a small user front end together with 2010 MSVWD express. I use a sql server with a table. A front end asp.net vb web page with a gridview. Gridview needs to update a table with user input. I'm having trouble limiting the amount of characters the user can enter in each field. If they enter too many in a given field they get an error. Can anybody help me figure this out?

This is the code I'm using:

</head>
<body>
    <form id="form1"  runat="server">
    <div>
    
    </div>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataSourceID="REWTSEquip1" EnableModelValidation="True" AllowPaging="True" 
        AutoGenerateEditButton="True" PageSize="4">
        <columns>
            <asp:BoundField DataField="MANUFACTURER" HeaderText="MANUFACTURER" 
                SortExpression="MANUFACTURER"  />
            <asp:BoundField DataField="MODEL" HeaderText="MODEL" SortExpression="MODEL" 
                 />
            <asp:BoundField DataField="DESCRIPTION" HeaderText="DESCRIPTION" 
                SortExpression="DESCRIPTION"  />
            <asp:BoundField DataField="SERIAL" HeaderText="SERIAL" 
                SortExpression="SERIAL" />
            <asp:BoundField DataField="EQUIP_ID" HeaderText="EQUIP_ID" 
                SortExpression="EQUIP_ID"  />
            <asp:BoundField DataField="CUSTOMER_NUMBER" HeaderText="CUSTOMER_NUMBER" 
                SortExpression="CUSTOMER_NUMBER"  />
            <asp:BoundField DataField="SERVICECOUNT" HeaderText="SERVICECOUNT" 
                SortExpression="SERVICECOUNT" />
            <asp:BoundField DataField="LOCATION" HeaderText="LOCATION" 
                SortExpression="LOCATION" />
            <asp:BoundField DataField="RECEIVED" HeaderText="RECEIVED" 
                SortExpression="RECEIVED" />
            <asp:BoundField DataField="CONDITION" HeaderText="CONDITION" 
                SortExpression="CONDITION" />
            <asp:BoundField DataField="TECHNICIAN" HeaderText="TECHNICIAN" 
                SortExpression="TECHNICIAN" />
            <asp:BoundField DataField="NOTES" HeaderText="NOTES" 
                SortExpression="NOTES" />
            <asp:BoundField DataField="DISPOSITION" HeaderText="DISPOSITION" 
                SortExpression="DISPOSITION" READONLY="true"/>
        </columns>
    
    <asp:SqlDataSource ID="REWTSEquip1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:MyConnectionstring %>" 
        SelectCommand="usp_Process" 
        SelectCommandType="StoredProcedure" 
        
        InsertCommand="INSERT INTO REWTSEquipment(MANUFACTURER, MODEL, DESCRIPTION, SERIAL, EQUIP_ID, CUSTOMER_NUMBER, SERVICECOUNT, LOCATION, RECEIVED, CONDITION, TECHNICIAN, NOTES, DISPOSITION) VALUES (@MANUFACTURER, @MODEL, @DESCRIPTION, @SERIAL, @EQUIP_ID, @CUSTOMER_NUMBER, @SERVICECOUNT, @LOCATION, @RECEIVED, @CONDITION, @TECHNICIAN, @NOTES, @DISPOSITION)" 
        UpdateCommand="INSERT INTO REWTSEquipment(MANUFACTURER, MODEL, DESCRIPTION, SERIAL, EQUIP_ID, CUSTOMER_NUMBER, SERVICECOUNT, LOCATION, RECEIVED, CONDITION, TECHNICIAN, NOTES, DISPOSITION) VALUES (@MANUFACTURER, @MODEL, @DESCRIPTION, @SERIAL, @EQUIP_ID, @CUSTOMER_NUMBER, @SERVICECOUNT, @LOCATION, @RECEIVED, @CONDITION, @TECHNICIAN, @NOTES, @DISPOSITION)">
        <insertparameters>
            <asp:Parameter Name="MANUFACTURER" />
            <asp:Parameter Name="MODEL" />
            <asp:Parameter Name="DESCRIPTION" />
            <asp:Parameter Name="SERIAL" />
            <asp:Parameter Name="EQUIP_ID" />
            <asp:Parameter Name="CUSTOMER_NUMBER" />
            <asp:Parameter Name="SERVICECOUNT" />
            <asp:Parameter Name="LOCATION" />
            <asp:Parameter Name="RECEIVED" />
            <asp:Parameter Name="CONDITION" />
            <asp:Parameter Name="TECHNICIAN" />
            <asp:Parameter Name="NOTES" />
            <asp:Parameter Name="DISPOSITION" />
        </insertparameters>
        <SelectParameters>
            <asp:QueryStringParameter Name="EQUIPID" QueryStringField="Equipid" 
                Type="String" />
        </SelectParameters>
        <updateparameters>
            <asp:Parameter Name="MANUFACTURER" />
            <asp:Parameter Name="MODEL" />
            <asp:Parameter Name="DESCRIPTION" />
            <asp:Parameter Name="SERIAL" />
            <asp:Parameter Name="EQUIP_ID" />
            <asp:Parameter Name="CUSTOMER_NUMBER" />
            <asp:Parameter Name="SERVICECOUNT" />
            <asp:Parameter Name="LOCATION" />
            <asp:Parameter Name="RECEIVED" />
            <asp:Parameter Name="CONDITION" />
            <asp:Parameter Name="TECHNICIAN" />
            <asp:Parameter Name="NOTES" />
            <asp:Parameter Name="DISPOSITION" />
        </updateparameters>
    
    </form>
</body>
</html>

[Edit - Added pre code tags, edited for spelling]

Posted 14-Jun-11 6:08am

AnthonyGC

Updated 14-Jun-11 6:15am

Kschuler

v2

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thatraja · Accepted Answer · 2011-06-14T06:34:00

Solution 1

You need to set maxlength for the fields based on database field length.

Posted 14-Jun-11 6:34am

thatraja

Comments

AnthonyGC 14-Jun-11 12:52pm

I've read about that but am having trouble understanding how to incorporate that in to my code. How would that look with one of the columns provided in my code?

THank you

thatraja 14-Jun-11 12:56pm

where are the textboxes you are entering your inputs? Include full code in your question. Textbox contains maxlength property so set the value based on database field length.

AnthonyGC 14-Jun-11 13:18pm

I don't know what your talking about. This si the full page from head to head.

This is the back code page

Partial Class REWTSManage
Inherits System.Web.UI.Page

Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.SelectedIndexChanged

End Sub

End Class

I loaded this page and it works.

AnthonyGC 14-Jun-11 13:22pm

Ah wait. my grid fields weren't converted to template fields yet. Is that what your talking about?

thatraja 14-Jun-11 13:39pm

Yes

AnthonyGC 14-Jun-11 13:35pm

so i changed the fields to templates and then did this

' <asp:TemplateField HeaderText="TECHNICIAN" SortExpression="TECHNICIAN">
<edititemtemplate>
<asp:TextBox ID="TextBox11" runat="server" maxlenght='6' Text='<%# Bind("TECHNICIAN") %>'>

<itemtemplate>
<asp:Label ID="Label11" runat="server" Text='<%# Bind("TECHNICIAN") %>'>

"

That still doesnt prevent me from entering more than 6 characters and just errors out when i hit update when i enter 7 characters.

thatraja 14-Jun-11 13:39pm

fix the typo it's maxlength not maxlenght

AnthonyGC 14-Jun-11 13:45pm

Duh. In my defense. English is my 3rd language. lol.

Thanks for the guidance.

thatraja 14-Jun-11 13:52pm

It's OK man. You welcome.
Cheers. :)