I'm using MSSQL Server.
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Report Viewer control in Visual Studio 2005
Hey!
I have a binary field in my database. I want to display it via the new ReportViewer control (Visual Studio 2005).
I read this link: http://msdn2.microsoft.com
Where It's saying:
Using an External or Database Image to a Report
To use a database image, you can specify the database field that contains the image as long as the MIME type is JPG, PNG, or BMP. If the image is stored as a binary object, you must write an expression that converts the image to a supported type.
What's the expression that converts the image?
[melack]
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Answers
Nothing special is needed, assuming you are storing an SQLServer image datatype.
==========================
The following Report1.rdlc, for example, assuming a table with id (integer) and picture (image, with bmps stored), gives a list matching the id to the picture:
<?xml version="1.0" encoding="utf-8"?>
<Report xmlns="http://schemas.micr
<DataSources>
<DataSource Name="jbftestConnectionStr
<ConnectionProperties>
<ConnectString>Data Source=JBFIEDERERXP\;Initi
<DataProvider>SQL</DataPro
</ConnectionProperties>
<rd:DataSourceID>b85aa84d-
</DataSource>
</DataSources>
<BottomMargin>1in</BottomM
<RightMargin>1in</RightMar
<rd:DrawGrid>true</rd:Draw
<InteractiveWidth>8.5in</I
<rd:SnapToGrid>true</rd:Sn
<Body>
<ReportItems>
<List Name="list1">
<Left>0.625in</Left>
<ReportItems>
<Image Name="image1">
<Sizing>AutoSize</Sizing>
<Left>1.875in</Left>
<Top>0.125in</Top>
<ZIndex>1</ZIndex>
<Width>1.5in</Width>
<Source>Database</Source>
<Style />
<Height>0.75in</Height>
<MIMEType>image/bmp</MIMET
<Value>=Fields!picture.Val
</Image>
<Textbox Name="id">
<Left>0.125in</Left>
<Top>0.125in</Top>
<rd:DefaultName>id</rd:Def
<Width>1in</Width>
<Style>
<TextAlign>Right</TextAlig
<PaddingLeft>2pt</PaddingL
<PaddingBottom>2pt</Paddin
<PaddingRight>2pt</Padding
<PaddingTop>2pt</PaddingTo
</Style>
<CanGrow>true</CanGrow>
<Height>0.25in</Height>
<Value>=Fields!id.Value</V
</Textbox>
</ReportItems>
<DataSetName>jbftestDataSe
<Top>0.5in</Top>
<Width>5.375in</Width>
<Height>1in</Height>
</List>
</ReportItems>
<Height>6in</Height>
</Body>
<rd:ReportID>5d1e74f0-6e0b
<LeftMargin>1in</LeftMargi
<DataSets>
<DataSet Name="jbftestDataSet_tab1"
<rd:DataSetInfo>
<rd:TableAdapterGetDataMet
<rd:DataSetName>jbftestDat
<rd:TableAdapterFillMethod
<rd:TableAdapterName>tab1T
<rd:TableName>tab1</rd:Tab
</rd:DataSetInfo>
<Query>
<rd:UseGenericDesigner>tru
<CommandText>SELECT id, picture FROM dbo.tab1</CommandText>
<DataSourceName>jbftestCon
</Query>
<Fields>
<Field Name="id">
<rd:TypeName>System.Int32<
<DataField>id</DataField>
</Field>
<Field Name="picture">
<rd:TypeName>System.Byte[]
<DataField>picture</DataFi
</Field>
</Fields>
</DataSet>
</DataSets>
<Width>6.5in</Width>
<InteractiveHeight>11in</I
<Language>en-US</Language>
<TopMargin>1in</TopMargin>
</Report>
==========================
However, for the life of me I cannot figure out how to set the MIMEtype from the designer. If it is NOT set, the report will not compile. I had to insert it by editing the XML.
Sure. If you design your dataset with a parameter in the sql
(My dataset with just one datatable had
SELECT code, text, code2
FROM codetext
WHERE (code2 = @codeval)
as SQL
)
then your Fill method will get an extra parameter, in which you can put the parameter value
private void button1_Click(object sender, EventArgs e)
{
int codeval = int.Parse(textBox1.Text);
this.codetextTableAdapter.
this.reportViewer1.Refresh
}
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by: jensfiedererPosted on 2006-01-20 at 05:48:37ID: 15748671
That depends on the database you are using. They are saying that your SQL cannot just pass off a blob, it needs to convert the blob to something like a string. Which database?