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Select parameters ASP.NET

Posted on 2010-08-25
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Last Modified: 2012-05-10
Hello folks,

I have a question, I am tryng to find a record by its name or last name,, I am using an Access Data Source and the following parameters , but the code is not working as I expect,,, If I use only the Name and a control parameter it does work, bu I need both .... how would I go about this? Thanks

Please see the query I am using
<asp:AccessDataSource ID="AccessDataSource2" runat="server" 
        DataFile="~/App_Data/Providers.accdb" 
        SelectCommand="SELECT [First_Name],[Last_Name],[Prof_Designation], [Specialty], [Specialty2],[Address], [Address2], [City], [State], [Zip], [Phone], [Fax], [lat], [lng] FROM [tbl_Providers] WHERE  
        (@First_Name IS NULL OR First_Name LIKE '%' +  @First_Name + '%') AND
        (@Last_Name IS NULL OR Last_Name LIKE '%' +  @Last_Name + '%') AND
        (@Specialty IS NULL OR Specialty LIKE '%' + @Specialty + '%') AND  
        (@Zip IS NULL OR Zip LIKE '%' + @Zip + '%')"
         CancelSelectOnNullParameter="False">
        <SelectParameters>

        <asp:ControlParameter ControlID="providerTextBox" Name="First_Name"  PropertyName ="Text" Type="String"  ConvertEmptyStringToNull ="true" />
        <asp:ControlParameter ControlID="providerTextBox" Name="Last_Name"  PropertyName ="Text" Type="String"  ConvertEmptyStringToNull ="true" />
        <asp:ControlParameter ControlID="specialityDropDown" Name="Specialty" PropertyName ="SelectedValue" Type="String" ConvertEmptyStringToNull ="true" />
        <asp:ControlParameter ControlID="txtZipCode" Name="Zip" PropertyName ="Text" Type="String" ConvertEmptyStringToNull ="true"  />

        
     </SelectParameters>

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Question by:TonyReba
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9 Comments
 
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Expert Comment

by:Surone1
ID: 33522835
do you want to show a record if the firstname AND the lastname are correct?
or when the firstname OR the lastname is correct?
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LVL 35

Expert Comment

by:YZlat
ID: 33523165
could you explain what exactly are you trying to do here?
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Assisted Solution

by:YZlat
YZlat earned 200 total points
ID: 33523231
if you meant First and Last name together, then try:

<asp:AccessDataSource ID="AccessDataSource2" runat="server"
        DataFile="~/App_Data/Providers.accdb"
        SelectCommand="SELECT [First_Name],[Last_Name],[Prof_Designation], [Specialty], [Specialty2],[Address], [Address2], [City], [State], [Zip], [Phone], [Fax], [lat], [lng] FROM [tbl_Providers] WHERE  
        ((@First_Name IS NULL AND @Last_Name IS NULL) OR First_Name + ', ' + Last_Name LIKE '%' +  @First_Name + ', ' + @Last-Name + '%') AND
        (@Specialty IS NULL OR Specialty LIKE '%' + @Specialty + '%') AND  
        (@Zip IS NULL OR Zip LIKE '%' + @Zip + '%')"
         CancelSelectOnNullParameter="False">
        <SelectParameters>

        <asp:ControlParameter ControlID="providerTextBox" Name="First_Name"  PropertyName ="Text" Type="String"  ConvertEmptyStringToNull ="true" />
        <asp:ControlParameter ControlID="providerTextBox" Name="Last_Name"  PropertyName ="Text" Type="String"  ConvertEmptyStringToNull ="true" />
        <asp:ControlParameter ControlID="specialityDropDown" Name="Specialty" PropertyName ="SelectedValue" Type="String" ConvertEmptyStringToNull ="true" />
        <asp:ControlParameter ControlID="txtZipCode" Name="Zip" PropertyName ="Text" Type="String" ConvertEmptyStringToNull ="true"  />

       
     </SelectParameters>
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Author Comment

by:TonyReba
ID: 33523574
I am trying to get the results for any part of a name  so whatever in providertextboxm matches ,,, First_Name, Last_Name need to query
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Accepted Solution

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Surone1 earned 300 total points
ID: 33523603
then you probably want to use OR instead of AND.
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Author Comment

by:TonyReba
ID: 33523613
i get

No value given for one or more required parameters.
0
 
LVL 9

Author Comment

by:TonyReba
ID: 33523644
this actually did the trick
<asp:AccessDataSource ID="AccessDataSource2" runat="server" 
        DataFile="~/App_Data/Providers.accdb" 
        SelectCommand="SELECT [First_Name],[Last_Name],[Prof_Designation], [Specialty], [Specialty2],[Address], [Address2], [City], [State], [Zip], [Phone], [Fax], [lat], [lng] FROM [tbl_Providers] WHERE  
        ((@First_Name IS NULL OR First_Name LIKE '%' +  @First_Name + '%') OR
        (@Last_Name IS NULL OR Last_Name LIKE '%' +  @Last_Name + '%')) AND
        (@Specialty IS NULL OR Specialty LIKE '%' + @Specialty + '%') AND  
        (@Zip IS NULL OR Zip LIKE '%' + @Zip + '%')"
         CancelSelectOnNullParameter="False">
        <SelectParameters>

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Author Closing Comment

by:TonyReba
ID: 33523654
thanks
0
 
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Expert Comment

by:Surone1
ID: 33523663
our pleasure
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