Database

Pass value from dropdownlist to SQL select using SelectedIndexChanged?

7-May-06 14:22

SQL 2005 builds on the foundation of SQL 7.0 and SQL 2000. Knowlege of an older version will almost always apply to a newer version.

We need to graduate from the ridiculous notion that greed is some kind of elixir for capitalism - it's the downfall of capitalism. Self-interest, maybe, but self-interest run amok does not serve anyone. The core value of conscious capitalism is enlightened self-interest.
Patricia Aburdene

FionaDM7-May-06 5:37

FionaDM

7-May-06 5:37

I want to pass a(numerical) value from a dropdownlist to an SQL select using the DropDownList SelectedIndexChanged event.

Here's my code so far.

protected void MyDropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList MyDropDownList = (DropDownList)("MyDropDownList");
MyLabel.Text = MyDefinitionDropDownList.SelectedItem.Value.ToString();

string strSQL;

strSQL = "SELECT COUNT(*) as count from MyTable where ID= ???";

}

My problem is that I don't know what should replace the '???'. I've tried

strSQL = "SELECT COUNT(*) as count from MyTable where ID= MyLabel.Text";

but this is interpreted as "SELECT COUNT(*) as count from MyTable where ID= MyLabel.Text"
even though my debugger tells me MyLabel.Text is grabbing an OK value.

If I do strSQL = "SELECT COUNT(*) as count from MyTable where ID= 6" for example it works fine.

I think my problem is with casting?

Thanks

Majella

Re: Pass value from dropdownlist to SQL select using SelectedIndexChanged?

Rob Graham7-May-06 6:01

Re: Pass value from dropdownlist to SQL select using SelectedIndexChanged?

7-May-06 6:01

try:
strSQL = "SELECT COUNT(*) as count from MyTable where ID=' " + MyLabel.Text + " ' ";

Or better yet use parameters (see Colin Mackay's article here[^]) for reasons and examples.

We need to graduate from the ridiculous notion that greed is some kind of elixir for capitalism - it's the downfall of capitalism. Self-interest, maybe, but self-interest run amok does not serve anyone. The core value of conscious capitalism is enlightened self-interest.
Patricia Aburdene

FionaDM7-May-06 22:12

FionaDM

7-May-06 22:12

Thanks.

Majella

sql

naidu nagam7-May-06 0:43

naidu nagam

7-May-06 0:43

how copy a coloumn ? from one table to another table using SQL query

naidu

-- modified at 6:44 Sunday 7th May, 2006

Re: sql

Rob Graham7-May-06 6:18

FullTextSearch and Arabic Words

7-May-06 6:18

What do you want to do:

copy the data from one column in a database table to a different column in another table?

If so, you need a key field that will have identical values in both tables:

Update t2 set t2.c2 = t1.c1 from t1 where t2.ct2key = t1.ct1key

This specifies that the value in c2 of t2 should be set to the value found in t1.c1 where the rows to use are identified by the field t1.ct1key having a value equal to that in t2.ct2key

If this is *not* what you want, then rephrase your question to be more specific, perhaps including and example so we can understand...

We need to graduate from the ridiculous notion that greed is some kind of elixir for capitalism - it's the downfall of capitalism. Self-interest, maybe, but self-interest run amok does not serve anyone. The core value of conscious capitalism is enlightened self-interest.
Patricia Aburdene

TheEagle6-May-06 22:56

6-May-06 22:56

Hi..

I have used Full Text Search successfuly with English words (through a stored procedure) but when i use it with arabic words like this(in the Sql Analyzer):

DECLARE @HowManyResults int
EXEC SearchProject 'المواقع العامة','ar-SA',@HowManyResults OUTPUT

I get the error:

Server: Msg 7619, Level 16, State 1, Procedure SearchProject, Line 17
Execution of a full-text operation failed. A clause of the query contained only ignored words.

Does any one know how to solve this problem? Cry | :((

Rob Graham7-May-06 6:04

7-May-06 6:04

without seeing the stored procedure you are using, this will be difficult to guess.

We need to graduate from the ridiculous notion that greed is some kind of elixir for capitalism - it's the downfall of capitalism. Self-interest, maybe, but self-interest run amok does not serve anyone. The core value of conscious capitalism is enlightened self-interest.
Patricia Aburdene

TheEagle7-May-06 6:56

7-May-06 6:56

Thank you for your respond...

The stored procedure code:

CREATE PROCEDURE SearchProject
(
@SearchString varchar(500),
@CultureName varchar(50),
@HowManyResults int OUTPUT
)
AS
CREATE TABLE #SearchTable
(
FieldNO int,
ProjectNO int,
ProjectName varchar(1000),
ProjectDescription varchar(1000),
ProjectImage varchar(1000),
CultureID int
)
INSERT INTO #SearchTable (FieldNO,ProjectNO,ProjectName,ProjectDescription,ProjectImage,CultureID)
SELECT P.FieldNO, PL.ProjectNO,PL.ProjectName,PL.ProjectDescription,P.ProjectImage,PL.CultureID
FROM FREETEXTTABLE(Project_Locale,*,@SearchString) AS FT JOIN Project_Locale AS PL ON FT.[KEY]=PL.ProjectCultureID
JOIN Project AS P ON P.ProjectNO=PL.ProjectNO
WHERE PL.CultureID=dbo.GetCultureID(@CultureName)

INSERT INTO #SearchTable (FieldNO,ProjectNO,ProjectName,ProjectDescription,ProjectImage,CultureID)
SELECT P.FieldNO, PL.ProjectNO,PL.ProjectName,PL.ProjectDescription,P.ProjectImage,PL.CultureID
FROM Project_Locale AS PL ,Project AS P,
ProjectField_Locale AS FL,
FREETEXTTABLE(ProjectField_Locale,*,@SearchString) AS FT2
WHERE FL.FieldNO=P.FieldNO
AND FL.FieldCultureID=FT2.[KEY]
AND PL.ProjectNO=P.ProjectNO
AND PL.CultureID=dbo.GetCultureID(@CultureName)
AND FL.CultureID=dbo.GetCultureID(@CultureName)

INSERT INTO #SearchTable (FieldNO,ProjectNO,ProjectName,ProjectDescription,ProjectImage,CultureID)
SELECT P.FieldNO, PL.ProjectNO,PL.ProjectName,PL.ProjectDescription,P.ProjectImage,PL.CultureID
FROM Project_Locale AS PL ,Project AS P,
Feature_Locale AS PFEA,
ProjectFeature AS FP,
Feature AS F,
FREETEXTTABLE(Feature_Locale,*,@SearchString) AS FT3
WHERE FT3.[KEY]=PFEA.FeatureCultureID
AND FP.ProjectNO=P.ProjectNO
AND FP.FeatureNO=PFEA.FeatureNO
AND PL.ProjectNO=P.ProjectNO
AND F.FeatureNO=PFEA.FeatureNO
AND PFEA.CultureID=dbo.GetCultureID(@CultureName)
AND PL.CultureID=dbo.GetCultureID(@CultureName)

SELECT @HowManyResults=COUNT(DISTINCT ProjectNO) FROM #SearchTable
SELECT DISTINCT * FROM #SearchTable
RETURN
GO

As i said before :this stored procedure was working fine with english words.

Rob Graham7-May-06 7:08

7-May-06 7:08

As a first step, try changing the data types in the SP and the internal table from varchar to nvarchar, so they expect unicode text rather than ansi text...

We need to graduate from the ridiculous notion that greed is some kind of elixir for capitalism - it's the downfall of capitalism. Self-interest, maybe, but self-interest run amok does not serve anyone. The core value of conscious capitalism is enlightened self-interest.
Patricia Aburdene

TheEagle7-May-06 7:14

7-May-06 7:14

Should i change the Data Type for all the tables used in the stored procedure or only in the #SearchTable table?

Rob Graham7-May-06 7:19

7-May-06 7:19

At least the #searchtable, and the fields being searched in the other tables.
varchar stores only single byte text, nvarchar stores Unicode. Any UI used to display nvarchar needs to be unicode aware and select the appropriate locale and a font that supports the needed characters. Enterprise manager and query analyzer may default to both a locale and font that results in some characters being displayed as an empty 'box' character...

We need to graduate from the ridiculous notion that greed is some kind of elixir for capitalism - it's the downfall of capitalism. Self-interest, maybe, but self-interest run amok does not serve anyone. The core value of conscious capitalism is enlightened self-interest.
Patricia Aburdene

-- modified at 13:19 Sunday 7th May, 2006

TheEagle7-May-06 7:24