How to search multiple values in one textbox

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Dear all,

I am writing to seek an example, where i can search multiple names in one textbox.

Currently, I am using the following code:

C#

Search Name
<asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="Search" />
<hr />
<asp:GridView ID="GridView1" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"
    runat="server" AutoGenerateColumns="false" DataSourceID="GridDataSource" AllowPaging="true">
    <Columns>
        <asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-Width="150" />
        <asp:BoundField DataField="Item" HeaderText="Item" ItemStyle-Width="150" />
        <asp:BoundField DataField="desc" HeaderText="Description" ItemStyle-Width="150" />
    </Columns>
</asp:GridView>
<asp:SqlDataSource ID="GridDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:ConStr %>"
    SelectCommand="SELECT Name, item, desc FROM deal" FilterExpression="Name LIKE '{0}%'">
    <FilterParameters>
        <asp:ControlParameter Name="Name" ControlID="txtSearch" PropertyName="Text" />
    </FilterParameters>
</asp:SqlDataSource>

Posted 20-Dec-13 0:52am

miss786

Updated 16-Jan-14 0:52am

v4

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Richard MacCutchan 20-Dec-13 7:00am

I am writing to seek help or example
Then you need to provide a lot more detail. Do you want to search for items in the textbox, or do you want to search somewhere else?

miss786 20-Dec-13 7:43am

Thank you so much for your help and response. Apology for not making the problem clear enough. I was looking for an example, where I can search items in one textbox. I really appreciate your time. Many thanks

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OriginalGriff · Accepted Answer · 2013-12-20T01:24:00

Assuming you mean you want a textbox which contains two or more names and you want to search some database for one or more of the names...
It's not quite that simple. First, you need your user to indicate where a name ends: so get him to type commas or semicolons for example:

C#

dave, pete, mike

Then assuming you are talking about SQL, you need to convert this to a format that SQL can accept:

C#

string s = "dave, pete, mike";
string[] names = s.Split(',').Select(n => string.Format("'{0}'", n.Trim())).ToArray();
string sql = string.Format("SELECT * FROM MyTables WHERE username IN ({0})", string.Join(",", names));

But...That is pretty dangerous - it leaves you wide open to SQL Injection attack, so you will probably have to sanitize your user input.