CODEWITHSUNDEEP
c#asp.net
Wodzu
Wodzu

Reputation: 6989

How to set an empty string as a default value for a DataSource parameter in ASP.NET?

This doesn't work. I've got an exception from SQL databse that column does not allow nulls.

<asp:SqlDataSource ID="MyDataSOurcet" runat="server" 
        ConnectionString="<%$ ConnectionStrings:MyConnectionString %>" 
        InsertCommand="INSERT INTO MyTable(Name) VALUES (@Name) WHERE NameID = 1" 
        <InsertParameters>
            <asp:Parameter Name="Name" Type="String" DefaultValue=""/>
        </InsertParameters>
    </asp:SqlDataSource>

Upvotes: 7

Views: 5341

Answers (2)

Henk Holterman
Henk Holterman

Reputation: 273574

You could try

   <asp:Parameter Name="Name"  Type="string" DefaultValue="" 
    ConvertEmptyStringToNull="false" />

But I thought that was default.

Upvotes: 9

Mouhannad
Mouhannad

Reputation: 2209

try this:

<asp:SqlDataSource ID="MyDataSOurcet" runat="server" OnInserting="MyDataSOurcetInserting" ... >

//cs
protected void MyDataSOurcetInserting(object sender, SqlDataSourceCommandEventArgs e)
{
   //check if nothing has been inserted then
   e.Command.Parameters["Name"].value = DBNull.Value;
}

Good luck!

Upvotes: 1

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