Hi I'm trying to get a filter expression working on my content column located in BLOG table on my gridview.
It displays the content column fine with 50 characters but when i try click my asp button to run the filter expression i get an error saying content column not found.
Any idea why this is?
Here's my code:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:Assignment2ConnectionString %>" SelectCommand="SELECT [blogid], [myfriendid], [inputdate],
Left(content,50) FROM [BLOG]" filterexpression="[content] LIKE '%{0}%' or url LIKE '%{0}%'">
<filterparameters>
<asp:controlparameter controlid="TextBox1" propertyname="Text" />
</filterparameters>
</asp:SqlDataSource>
When you do Left(content,50) that the column no longer has a name
Change the to this
ConnectionString = "<%$ ConnectionStrings:Assignment2ConnectionString %>"
selectCommand "SELECT [blogid], [myfriendid], [inputdate],
Left(content,50) AS ShortContent FROM [BLOG]"
filterexpression = "[ShortContent] LIKE '%{0}%' or url LIKE '%{0}%'">
Related
I have a textbox that I want to make into a search bar. My table has an int "id" and varchar(50) "name". I want to search for either the name or the id in the same textbox. Is that even possible? I've tried many things but haven't gotten to a solution yet.
Here's what I have:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:New_QuickBooksConnectionString %>"
SelectCommand="SELECT * FROM [Testing1]" FilterExpression="([id] = {0}) OR ([name] LIKE '%(CAST {0} AS VARCHAR(50))%')">
<FilterParameters>
<asp:ControlParameter ControlID="TextBox1" Name="id" PropertyName="Text" Type="int32" />
</FilterParameters>
</asp:SqlDataSource>
This just returns the id when I type in a number. It doesn't work for name. What can I do?
Try changing the type = "String" and convert ID to String, like CONVERT([Id],'System.String') like '{0}'
I have a drop down list that bound to a SqlDataSource.
I have another drop down list that's bound to a different SqlDataSource.
The second SqlDataSource has the first drop down as a Control Parameter.
I'm trying to do this...
<asp:SqlDataSource ID="sqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT * FROM Test WHERE Param = #param;"
CancelSelectOnNullParameter="true">
<SelectParameters>
<asp:ControlParameter ControlID="dropDown1" Name="param"
PropertyName="SelectedValue"
ConvertEmptyStringToNull="true" />
</SelectParameters>
</asp:SqlDataSource>
dropDown1.SelectedValue = "someValue"
dropDown2.DataBind()
but I don't get any results. However, if I set the second SqlDataSource's Control Parameter to a text box, it works. For example, this works:
<asp:ControlParameter ControlID="txt" Name="param"
PropertyName="Text"
ConvertEmptyStringToNull="true" />
txt.Text = "someValue"
dropDown2.DataBind()
Any ideas why this is?
I ended up figuring this one out. The problem was that the drop down was attempting to bind twice, much like the problem in this question.
I used the suggestion made by Joel Etherton, and now it works perfectly. Although I used a hidden control rather than a label.
I'm trying to bind a column from a SQL code that i have written to all hyperlinks in a datalist. This should be really simple but I'm getting the error
DataBinding: 'System.Data.Common.DataRecordInternal' does not contain
a property with the name 'NumberOfComments'.
Well I'm pretty sure the column exist but in this case it's created by a function maybe that has something to do with it. When I run the SQL code i get the values I should.
The hyperlink
<asp:HyperLink ID="lnkComment" runat="server"
NavigateUrl='<%# Eval("ID", "~/Default.aspx?ID={0}") %>'
Text='<%# Eval("NumberOfComments") %>'></asp:HyperLink>
The SQLDataSource
<asp:SqlDataSource ID="sdsNews" runat="server"
ConnectionString="<%$ ConnectionStrings:ASPNETDBConnectionString %>" SelectCommand="SELECT News.ID, News.Topic, News.Text, News.PostTime, aspnet_Users.UserName, "NumberOfComments" = dbo.fnNumberOfCommentOnNews(News.ID)
FROM News INNER JOIN
aspnet_Users ON News.UserId = aspnet_Users.UserId
WHERE (News.ID = ISNULL(#ID, News.ID))
ORDER BY News.PostTime DESC ">
<SelectParameters>
<asp:QueryStringParameter DbType="Guid" Name="ID" QueryStringField="ID" DefaultValue="" />
</SelectParameters>
</asp:SqlDataSource>
Why do you have """ surrounding NumberOfComments FieldName?
Try pasting the select command into SSMS (SQL Server Mgmt studio) and you should most definitely get an incorrect syntax error. If you drop those quot html code you will still be able to reference and bind to that column.
I am quite new to asp.net,I am building an application where I need to show the in the grid view,Now the query I am generating for fetching the data from database containing one parameter which comes from the query string.I am using this code
<asp:SqlDataSource runat="server" ID="MySQLData"
ConnectionString="server=localhost;port=3309; User Id=xxxxx;password=xxxxx;database=xxxxx"
ProviderName="MySql.Data.MySqlClient"
SelectCommand="SELECT contenthead.lastmodifieddate,contenthead.heading,lk_technology.technology FROM contenthead JOIN lk_technology WHERE contenthead.techID=lk_technology.techID AND contenthead.authorid='<%=Request.QueryString["uid"]%>'" />
Now when I am using <%..%> tag I am getting parser error that says: Server tags cannot contain <% ... %> constructs.
Now I want to use this variable from query string.Please tell me how I can access this variable in this context.
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="..." ProviderName="System.Data.SqlClient" SelectCommand="SELECT [UserId], [LastUpdatedDate] FROM [vw_aspnet_Profiles] WHERE ([UserId] = #UserId)">
<SelectParameters>
<asp:QueryString ParameterDefaultValue="0" Name="UserId" QueryStringField="Id" Type="Object"/>
</SelectParameters>
</asp:SqlDataSource>
You have to add a parameter to your SqlDataSource
I have a page 3 datacontrols (in order, datalist->grid->listview, the selection from one feeds into the next) works perfectly locally, using dot net connector for mysql. My webhost uses ODBC, and I had to remove [ ] from the select statements in my code and put the table names. I removed the [ ] 's and my page runs, and my 1st/datalist control shows but now my "selected value" of my datalist, doesn't populate my grid control.
I imagine theres another peculiarity with the way odbc handles parameters.
Here is my original, for my grid:
<asp:SqlDataSource ID="recipegrid" runat="server"
ConnectionString="<%$ ConnectionStrings:exoticingConnectionString %>"
ProviderName="<%$ ConnectionStrings:exoticingConnectionString.ProviderName %>"
SelectCommand="SELECT [Id], [Name], [Cal], [Pro], [Fat], [Carb], [Fiber], [Chol], [Sod] FROM [tblrecipes] WHERE ([filenameid] = #filenameid) ORDER BY [name]">
<SelectParameters>
<asp:ControlParameter ControlID="DataList1" Name="filenameid"
PropertyName="SelectedValue" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
example of changes to select that allowed my page to run again:
SelectCommand="SELECT tblrecipes.Id, tblrecipes.Name, tblrecipes.Cal, tblrecipes.Pro, tblrecipes.Fat, tblrecipes.Carb, tblrecipes.Fiber, tblrecipes.Chol, tblrecipes.Sod FROM tblrecipes WHERE tblrecipes.filenameid = #filenameid ORDER BY tblrecipes.name">
BTW,
I also tried removing my scriptmanager & updatepanel,, and using autopostbacks instead in my controls, jik, and nothing changed so I put it back.
changed :
WHERE ([filenameid] = #filenameid)
to:
WHERE ([filenameid] = ?)
and it worked