Search problem in gridview of asp.net C#

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good afternoon,

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<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
 <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <div>
            <asp:TabContainer ID="TabContainer1" runat="server" Width="372px"  ActiveTabIndex="0"  OnClientActiveTabChanged="clientActiveTabChanged" >
            <asp:TabPanel ID="test" runat="server" HeaderText="panel">
            <ContentTemplate>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server" 
                 
           
            <table>
            <tr>
            <td><asp:Label ID="lblSearch" runat="server" Text="Search"></asp:Label></td>
            <td><asp:TextBox ID="txtSearch" runat="server"></asp:TextBox></td>
            <td>
                <asp:Button ID="btnSearch" runat="server" Text="Search"
                    onclick="btnSearch_Click" /></td>
            </tr>
            </table>
             <asp:GridView ID="TestGrid" runat="server" AutoGenerateColumns="False"
                    DataKeyNames="ItemID" DataSourceID="SqlDataSource1" Height="141px"
                    Width="334px"  >
             <Columns>
                 <asp:TemplateField HeaderText="Item Id">
                <ItemTemplate>
                    <asp:Label ID="Label1" runat="server"  Text='<%# Bind("ItemID") %>'></asp:Label>
                  </ItemTemplate>
                  </asp:TemplateField>
                     <asp:TemplateField HeaderText="ItemDescription">
                     <ItemTemplate>
                    <asp:LinkButton ID="LinkEdit" runat="server" Text='<%# Bind("ItemDescription") %>' CommandArgument='<%# Bind("ItemID")%>' OnClick="LinkEdit_OnClick"  ></asp:LinkButton>
                </ItemTemplate>
                 </asp:TemplateField>
                 <asp:BoundField DataField="Remarks" HeaderText="Remarks"
                     SortExpression="Remarks"  />
             </Columns>
              </asp:GridView>
                <asp:SqlDataSource ID="SqlDataSource1" runat="server"
                    ConnectionString="<%$ ConnectionStrings:DeemahTestConnectionString %>"
                    SelectCommand="SELECT [ItemID], [ItemDescription], [Remarks] FROM [ItemMaster]">
                </asp:SqlDataSource>
                </ContentTemplate>
                </asp:UpdatePanel>
            </ContentTemplate>
            </asp:TabPanel>

and my code behind file is given below..

protected void btnSearch_Click(object sender, EventArgs e)
      {
          string connectionString = (string)ConfigurationManager.ConnectionStrings["DeemahTestConnectionString"].ConnectionString;
          ConnDeemah.ConnectionString = connectionString;
          string sqlQuery = "select top(1) * from itemMaster where ItemDescription like '%+txtSearch.Text+%' ";
          SqlCommand cmd = new SqlCommand(sqlQuery, ConnDeemah);
          ConnDeemah.Open();
          SqlDataReader rdr = null;
          rdr = cmd.ExecuteReader();

          ConnDeemah.Close();
          TestGrid.DataSource = rdr.ToString();
          TestGrid.DataBind();
      }

when i run this page its give me the error

"Both DataSource and DataSourceID are defined on 'TestGrid'. Remove one definition."

so please give me the way which i can do searching in gridview by textboxes

thanks

[edit]added pre tag

Posted 3-May-11 0:30am

mohd vaquas

Updated 3-May-11 0:39am

nit_singh

v2

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Ra-one · Answer 1 · 2011-05-03T00:42:00

try this...

protected void btnSearch_Click(object sender, EventArgs e)
{
DataSet ds = new DataSet();
string connectionString = (string)ConfigurationManager.ConnectionStrings["DeemahTestConnectionString"].ConnectionString;
ConnDeemah.ConnectionString = connectionString;
string sqlQuery = "select top(1) * from itemMaster where ItemDescription like '%+txtSearch.Text+%' ";
SqlDataAdapter da = new SQLDataAdapter(sqlQuery, ConnDeemah);
da.Fill(ds);

if(ds.Tables[0].Rows.Count > 0)
{
TestGrid.DataSource = ds;
TestGrid.DataBind();
}
else
{
 'print message no result found
}
}

Please check the case using intellisense, I have not used any editor so may be misspelled.

Hope this helps

nit_singh · Answer 2 · 2011-05-03T00:42:00

Solution 2

Remove one binding either from aspx or from .cs.

comment "TestGrid.DataSource = rdr.ToString();" line

or

remove entire "<asp:sqldatasource xmlns:asp="#unknown">" from aspx file

Posted 3-May-11 0:42am

nit_singh

Mahendra.p25 · Answer 3 · 2011-05-03T00:38:00

//you are Binding your DataGrid with SqlDataSource and from Code behind also 
//Remove One binding from your Code 

//From Code Behind 

string connectionString = (string)ConfigurationManager.ConnectionStrings["DeemahTestConnectionString"].ConnectionString;
ConnDeemah.ConnectionString = connectionString;
string sqlQuery = "select top(1) * from itemMaster where ItemDescription like '%+txtSearch.Text+%' ";
SqlCommand cmd = new SqlCommand(sqlQuery, ConnDeemah);
ConnDeemah.Open();
SqlDataReader rdr = null;
rdr = cmd.ExecuteReader();

ConnDeemah.Close();
TestGrid.DataSource = rdr.ToString();
TestGrid.DataBind();

//Or from Aspx Page


<asp:sqldatasource id=""SqlDataSource1"" runat=""server"<br" mode="hold" xmlns:asp="#unknown" />                    ConnectionString="<%$ ConnectionStrings:DeemahTestConnectionString %>"
                    SelectCommand="SELECT [ItemID], [ItemDescription], [Remarks] FROM [ItemMaster]">
                </asp:SqlDataSource>

Search problem in gridview of asp.net C#

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