I'm trying to create simple search. I have "txtSearch" textBox and "search" button in MasterPage, button has PostbackUrl= Search.aspx
In MasterPage
<asp:TextBox ID="txtSearch" runat="server" ValidationGroup="b" Text="Users Search" ForeColor="Silver">Users Search</asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="Search" ValidationGroup="b"
PostBackUrl="~/Search.aspx" onclick="btnSearch_Click" />
In Search.aspx i have GridView that shows me results and SqlDataSource
<asp:SqlDataSource ID="SqlDataSearchResult" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT vw_aspnet_Users.UserId, vw_aspnet_Users.UserName, Custon_UserInfo.UserId AS Expr1, Custon_UserInfo.FirstName, Custon_UserInfo.LastName, Custon_UserInfo.Location, Custon_UserInfo.Avatar, Custon_MoneyWork.UserId AS Expr2, Custon_MoneyWork.Money, vw_aspnet_Users.LastActivityDate FROM vw_aspnet_Users INNER JOIN Custon_UserInfo ON vw_aspnet_Users.UserId = Custon_UserInfo.UserId INNER JOIN Custon_MoneyWork ON vw_aspnet_Users.UserId = Custon_MoneyWork.UserId WHERE (vw_aspnet_Users.UserName LIKE '%' + #UserName + '%')">
<SelectParameters>
<asp:FormParameter FormField="txtSearch" Name="UserName" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
In Define Parameters :
UserName =Request.Form("txtSearch") as it needs to be, but it's not working. I tried with session["search"]=txtSearch.text; and its working.. But not with Request.Form..
UPD
I tryed to use QueryStringField instead of FormField and it works, don't know whats wrong with FormField.
Why not avoid Session variables (I don't like the idea of a 'global' variable that sits above everything else, and no way of knowing if it was inadvertently changed or corrupted by bad code, for example), and use ControlParameter instead?
ie
<SelectParameters>
<asp:ControlParameter ControlID="txtSearch" Name="UserName" PropertyName="Text" Type="String" />
</SelectParameters>
Let ASP.net do most of the work for you.
Related
I'm using ASP.net to use a gridview. The gridview's sql data source is a select statement where ID = a value (a GUID) from a querystring.
However, when I try and preview it, it doesn't show any results. If I change it to a different type (int) of 1, then it works fine and shows results.
If I do the select statement in SQL Server Management Studio (with the GUID), it works fine and shows the results.
Here's the code for the data:
<asp:SqlDataSource ID="SQLDataSourceL" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString1 %>"
SelectCommand="SELECT [FName], [Date] FROM [Table1] WHERE (([FName] = #FName) AND ([Type] = #Type)) ORDER BY [Date] DESC, [FName]">
<SelectParameters>
<asp:QueryStringParameter Name="FName" QueryStringField="id" Type="Object" />
<asp:Parameter DefaultValue="X" Name="Type" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
(I've changed the column names).
Hope you can help.
Try changing the QueryStringParameter to the suitable type, eg:
<asp:QueryStringParameter Name="FName" QueryStringField="id" Type="String" />
I have a web page with 3 values (1 text box, and 2 drop-downs) and displays result in a gridview. This is working great when the value that I want to search is in the drop-down. However, if the user didn't select one of the dropdownlist ( facilityCode), we would like to display all facility codes versus only one. What is the easiest way to accomplish this? Below is the code related to the sqldatasource:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:HCSCRMConnectionString %>"
SelectCommand="SELECT MMM_Id_Nbr, Item_Desc, Supplier_Nbr, Supplier_Name, Stocking_Facility_Code, Reorder_Point_Qty, BodID, Active_Ind FROM BOD_ROP_TBL WHERE (MMM_Id_Nbr = #MMM_Id_Nbr)and active_Ind=#Active_Ind and Stocking_Facility_Code=#FacilityCode"
UpdateCommand="UPDATE BOD_ROP_TBL SET Reorder_Point_Qty = #Reorder_Point_Qty, Active_Ind = #Active_Ind WHERE (BodID = #BodID)">
<SelectParameters>
<asp:FormParameter FormField="txt3MID" Name="MMM_Id_Nbr" Type="String" />
<asp:FormParameter FormField="dropActive" Name="Active_Ind" Type="String" />
<asp:FormParameter FormField="FacilityCode" Name="FacilityCode" Type="String" />
</SelectParameters>
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 am trying to Populate data into the Company DropDownList after selecting the Country from the CountryDropDownList. Complete newbiew on ASP.Net Web Form. So please excuse little knowledge.
I have been trying to do it only on the .aspx page which I am not entirely sure if I could do it. My code is as follows, which doesn't populate anything on the CompanyDropDownList at all. The problem is I have been writing the code looking at different sources but I guess I am not entirely sure where the problem is and what am I doing wrong. If anyone can explain a little bit and spot my errors would be really helpful.
<asp:DropDownList
ID="CompanyDropDownList"
runat="server"
OnSelectedIndexChanged="CompanyDropDownList_SelectedIndexChanged"
DataSourceID="CompanyNameSqlDataSource"
DataTextField="CompanyName"
DataValueField="CompanyID"
AppendDataBoundItems="True"
AutoPostBack="True">
</asp:DropDownList>
<asp:SqlDataSource
ID="CompanyNameSqlDataSource"
runat="server"
ConnectionString="<%$ ConnectionStrings:BIGroupCostConnectionString %>"
OnSelecting="CountryNameSqlDataSource_Selecting"
SelectCommand="SELECT CompanyName, countryID FROM Company Where CompanyID = #CompanyID">
<SelectParameters>
<asp:ControlParameter
Name="CountryID"
ControlID="CountryDropDownList"
PropertyName="SelectedValue"
Type= "String"/>
<asp:Parameter Name="CountryID" />
</SelectParameters>
</asp:SqlDataSource>
Thanks.
I think the problem is that you are passing the company drop-down as parameter instead of the country you mention.
<SelectParameters>
<asp:ControlParameter Name="CompanyID" ControlID="CompanyDropDownList"
PropertyName="SelectedValue" Type= "String"/>
<asp:Parameter Name="CompanyID" />
Shouldn't it be your Country control?
Ademar
Found the problem. The problem was the following line of code. Removing the line showed the data correctly.
<asp:Parameter Name="CountryID" />
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.