The Site map web part, as well as other navigation web parts, display the
DocumentMenuCaption field. If it is empty, the
DocumentName is displayed instead. If you need to let users define the caption on the Form tab, you can simply add a new system attribute to the document type in question which would represent the
DocumentMenuCaption. This way, all navigation web parts would display the value of the custom system field.
There might be times when you want one navigation web part to display a different field from other navigation web parts. Let's say that you have created a document type field
SiteMapTitle that you want to display using the Site map web part, while other navigation web parts should display the standard
DocumentMenuCaption field.
If this is your scenario, you can modify the
OnPreRender method of the Site map web part and change the
DocumentMenuCaption column for each row in the DataSet so that it contain a value of the
SiteMapTitle field:
if (this.smElem.DataSource is DataSet)
{
DataSet ds = this.smElem.DataSource;
foreach (DataRow row in ds.Tables[0].Rows)
{
row["DocumentMenuCaption"] = row["SiteMapTitle"];
}
}
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