c# - SQLDatasource parameters -

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how can set sql parameters sqldatasource in code behind? trying this:

int id=1; sqldatasource1.selectcommand = "select * categ id=@id"; sqldatasourcearticole.selectparameters.add("@id", id); // , this: sqldatasourcearticole.selectparameters.add("id", id);

but doesn't work? doing wrong?

make sure add select parameters before trying set default value.

i.e.

sqldatasourcearticole.selectparameters.add("@id", id); sqldatasourcearticole.selectparameters["id"].defaultvalue = id.tostring();

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